MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6fb3d68ea64e29b3304a3885fb1ef3b3fffa27b2ce89ad40afcdda9572d8dcfe. 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



TrickBot


Vendor detections: 9


Maldoc score: 8


Intelligence 9 IOCs YARA 7 File information Comments

SHA256 hash: 6fb3d68ea64e29b3304a3885fb1ef3b3fffa27b2ce89ad40afcdda9572d8dcfe
SHA3-384 hash: 66846fbc8ac4f89df450c1449e2c1c6c504a1426586739bcc563fe051b78dc4cbafbd3c7f50413f22d32d612e280093e
SHA1 hash: 07e5796a4fdc3fc5b5e608020857c1d9f85bfa62
MD5 hash: bfbefd0c2003da4eaca02b8500f12cd5
humanhash: winner-illinois-edward-orange
File name:Document_xxx.xlsm
Download: download sample
Signature TrickBot
File size:26'103 bytes
First seen:2020-12-28 17:21:22 UTC
Last seen:Never
File type:Excel file xlsm
MIME type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ssdeep 384:AIfowYL2aGcdbZz+chKCoIj7HKSev5rDQ8aoVT0QNuzWKP8WnNKdSZ:AIfl/aGcVN+cdBHYPfW+u7DnAq
TLSH 02C2BF5FC660FC59DA2B447CD2142AF7A81C3915D190F10E7890B2792B4B2D367CF66E
Reporter abuse_ch
Tags:rob32 TrickBot xlsm


Avatar
abuse_ch
Malspam distributing TrickBot:

HELO: email.pioneeracademics.com
Sending IP: 212.146.220.138
From: Customer Service <techsupport@pioneeracademics.com>
Reply-To: Customer Service <admissions1@pioneeracademics.com>
Subject: Staffing Update xxx xxx
Attachment: Document_xxx.zip (contains "Document_xxx.xlsm")

TrickBot payload URL:
http://vermapaints.com/pic.gif

TrickBot C2s:
41.243.29.182:449
196.45.140.146:449
103.87.25.220:443
103.98.129.222:449
103.87.25.220:449
103.65.196.44:449
103.65.195.95:449
103.61.101.11:449
103.61.100.131:449
103.150.68.124:449
103.137.81.206:449
103.126.185.7:449
103.112.145.58:449
103.110.53.174:449
102.164.208.48:449
102.164.208.44:449

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: 8
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
SuspiciousFORMULA.FILLMay modify Excel 4 Macro formulas at runtime
SuspiciousEXECMay run an executable file or a system
SuspiciousBase64 StringsBase64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
SuspiciousXLM macrosheetXLM macrosheet found. It could contain malicious code

Intelligence


File Origin
# of uploads :
1
# of downloads :
405
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
Document_xxx.xlsm
Verdict:
No threats detected
Analysis date:
2020-12-28 17:22:10 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
File type:
application/vnd.ms-excel.sheet.macroEnabled.12
Has a screenshot:
False
Contains macros:
True
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching the default Windows debugger (dwwin.exe)
Launching a process by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
OOXML Excel File with Excel4Macro
Document image
Document image
Result
Verdict:
MALICIOUS
Details
Macro Execution Coercion
Detected a document that appears to social engineer the user into activating embedded logic.
Autostarting Excel Macro Sheet
Excel contains Macrosheet logic that will trigger automatically upon document open.
Document With Minimal Content
Document contains less than 1 kilobyte of semantic information.
Result
Threat name:
Hidden Macro 4.0
Detection:
malicious
Classification:
expl.evad
Score:
84 / 100
Signature
Document exploit detected (drops PE files)
Document exploit detected (process start blacklist hit)
Document exploit detected (UrlDownloadToFile)
Downloads files with wrong headers with respect to MIME Content-Type
Found Excel 4.0 Macro with suspicious formulas
Machine Learning detection for dropped file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office process drops PE file
Sigma detected: Microsoft Office Product Spawning Windows Shell
Behaviour
Behavior Graph:
Result
Malware family:
trickbot
Score:
  10/10
Tags:
family:trickbot botnet:rob32 banker macro trojan
Behaviour
Enumerates system info in registry
Modifies Internet Explorer settings
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
Enumerates connected drives
Loads dropped DLL
Templ.dll packer
Process spawned unexpected child process
Trickbot
Malware Config
C2 Extraction:
41.243.29.182:449
196.45.140.146:449
103.87.25.220:443
103.98.129.222:449
103.87.25.220:449
103.65.196.44:449
103.65.195.95:449
103.61.101.11:449
103.61.100.131:449
103.150.68.124:449
103.137.81.206:449
103.126.185.7:449
103.112.145.58:449
103.110.53.174:449
102.164.208.48:449
102.164.208.44:449
Dropper Extraction:
http://vermapaints.com/pic.gif
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_Dridex_xlsm_20200528_2
Author:abuse.ch
Rule name:Email_stealer_bin_mem
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:IPPort_combo_mem
Author:James_inthe_box
Description:IP and port combo
Rule name:Microsoft_XLSX_with_Macrosheet
Rule name:Select_from_enumeration
Author:James_inthe_box
Description:IP and port combo
Rule name:SharedStrings
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples
Rule name:UAC_bypass_bin_mem
Author:James_inthe_box
Description:UAC bypass in files like avemaria

File information


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

Malspam

TrickBot

Excel file xlsm 6fb3d68ea64e29b3304a3885fb1ef3b3fffa27b2ce89ad40afcdda9572d8dcfe

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments