MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef93251e31ce7ce387898be4ce0d7acf735f8e21ae9e6f453d6e2cd594e96bcb. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Emotet (aka Heodo)


Vendor detections: 6


Maldoc score: 11


Intelligence 6 IOCs YARA 1 File information Comments
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SHA256 hash: ef93251e31ce7ce387898be4ce0d7acf735f8e21ae9e6f453d6e2cd594e96bcb
SHA3-384 hash: ef706dab2094c1ce88c436b6c495e9dc179b325667b4acd9f1fad7baa54cf89d43588dfb837927e961179760f5e3facb
SHA1 hash: d47b2c93f3474fa2bafdb5b4ebb1991916262282
MD5 hash: 59083638a2ab845ee505b11b2bfc1ac8
humanhash: coffee-blossom-network-lemon
File name:Documentation_949376244.doc
Download: download sample
Signature Heodo
Create hunting rule
File size:167'963 bytes
First seen:2020-10-29 12:24:49 UTC
Last seen:Never
File type:Word file doc
MIME type:application/msword
ssdeep 1536:KrOBolGaGx/OTGXSqKiOZfOvWMmK9f3ifuF/sZvD21F1c:ujNGXSbdMm20ZvDqF1c
TLSH 74F33DC56D92FDCAFD40CE314DBAE9B8E2347C405555E24AE0293F681E3ED4CD3A5A82
Reporter cocaman
Tags:doc Dridex Emotet Heodo

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id
Maldoc score: 11
Application name is Microsoft Office Word
Office document is in OLE format
Office document contains VBA Macros
OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

TypeKeywordDescription
AutoExecDocument_openRuns when the Word or Publisher document is opened
SuspiciousCreateMay execute file or a system command through WMI
SuspiciousshowwindowMay hide the application
SuspiciousCreateObjectMay create an OLE object
SuspiciousChrWMay attempt to obfuscate specific strings (use option --deobf to deobfuscate)
SuspiciousHex StringsHex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.VBS.Obfus-154.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.EMOCROCreateRomanticWarrior.20200916.UNOFFICIAL
Create hunting rule

TwinWave.EvilDoc.EmotetKillerQueen.20201026.UNOFFICIAL
Create hunting rule

TwinWave.EvilDocs.EmotetContinuationWorldIsAVampire.20201028.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Using the Windows Management Instrumentation requests
Creating a process with a hidden window
DNS request
Sending an HTTP GET request
Creating a file
Launching a process
Sending a custom TCP request
Bypassing of proactive protection methods using Windows Management Instrumentation (WMI)
Launching a process by exploiting the app vulnerability
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/516002
Signature
Creates processes via WMI
Document contains an embedded VBA with many randomly named variables
Encrypted powershell cmdline option found
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
PowerShell case anomaly found
Powershell drops PE file
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Very long command line found
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef93251e31ce7ce387898be4ce0d7acf735f8e21ae9e6f453d6e2cd594e96bcb/
Threat name:
Document-Word.Trojan.Emotet
Create hunting rule
Status:
Malicious
First seen:
2020-10-29 12:26:04 UTC
File Type:
Document
Extracted files:
27
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=56jskhrrzz6ohb4jrpsm4dl2z5zv7drbv2pg6rj5nywnlfhjnpfq._file
Result
Malware family:
dridex
Create hunting rule
Score:
  10/10
Tags:
family:dridex botnet discovery evasion loader trojan
Link:
https://tria.ge/reports/201029-7zkpcdjz2e/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates system info in registry
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Drops file in System32 directory
Checks installed software on the system
Checks whether UAC is enabled
Loads dropped DLL
Blacklisted process makes network request
Dridex Loader
Dridex
Process spawned unexpected child process
Malware Config
C2 Extraction:
77.220.64.55:443
51.254.163.104:1688
165.22.65.75:3388
103.41.110.115:33443
Dropper Extraction:
http://www.furniture1.shenoydemo.org/
http://chat.robi2.hu/
http://vn.kg/
http://polymorph.org/
http://bmovies.biz/
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_Heodo_doc_20200916
Create hunting rule
Author:abuse.ch
Description:Detects Heodo DOC

File information

The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Distributed via e-mail link

Comments