MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9df93e80c81334711777d6650d1a1ee246003ec4919e732366ebd93eda77a174. 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


Formbook


Vendor detections: 7


Intelligence 7 IOCs YARA 1 File information Comments
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SHA256 hash: 9df93e80c81334711777d6650d1a1ee246003ec4919e732366ebd93eda77a174
SHA3-384 hash: 479b07a67eda97b593caa27803e69034521252a02a3029d4eeda7c63b2827e90de372db5dd71d6ff17d091a7c4c76468
SHA1 hash: 49f4f510395f867b4d5b7d1f7026984b23b4e250
MD5 hash: d705c1531cbd8f552035cd81524e2a70
humanhash: fillet-east-twenty-batman
File name:DC 3004 COPY DOCS.xlsx
Download: download sample
Signature Formbook
Create hunting rule
File size:719'872 bytes
First seen:2020-08-14 11:14:02 UTC
Last seen:Never
File type:Excel file xlsx
MIME type:application/encrypted
ssdeep 12288:E+uhQdsBfEyg1ailP+P+zIvLxIyiuw8hafPz35Co4mHNg3Yd7d:EHKKfZsaN+z6OyiubazIort3
TLSH F0E423CBBDEE8FA3E06129B8404DB810879E7C4D4660F96BA21BB177D235BF248570D5
Reporter abuse_ch
Tags:FormBook xlsx


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: expolanka.com
Sending IP: 103.114.106.11
From: Aditha Rambukwella <adithar@expolanka.com>
Subject: DC 3004 COPY DOCS
Attachment: DC 3004 COPY DOCS.xlsx

Formbook payload URL:
http://103.114.106.11/uzo.exe

Formbook C2:
http://www.flekcht.com/usc/

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
PUA.Doc.Packed.EncryptedDoc-6563700-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %AppData% directory
Launching cmd.exe command interpreter
Sending an HTTP GET request
Launching a file downloaded from the Internet
Creating a process from a recently created file
Result
Threat name:
Unknown
Detection:
malicious
Classification:
n/a
Score:
48 / 100
Link:
https://www.joesandbox.com/analysis/429588
Signature
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Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 267269 Sample: DC 3004 COPY DOCS.xlsx Startdate: 16/08/2020 Architecture: WINDOWS Score: 48 12 Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros) 2->12 6 EXCEL.EXE 160 51 2->6         started        8 mspaint.exe 27 2 2->8         started        process3 process4 10 splwow64.exe 6->10         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/9df93e80c81334711777d6650d1a1ee246003ec4919e732366ebd93eda77a174/
Threat name:
Document-Office.Trojan.Wacatac
Create hunting rule
Status:
Malicious
First seen:
2020-08-14 11:15:06 UTC
AV detection:
17 of 48 (35.42%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=tx4t5agicm2hcf3x2zsq2gq64jdaapwesgphgi3g5pmt5wtxuf2a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat trojan spyware stealer family:formbook
Link:
https://tria.ge/reports/200814-aqy6afc1z6/
Behaviour
Enumerates system info in registry
Launches Equation Editor
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Loads dropped DLL
Uses the VBS compiler for execution
Blacklisted process makes network request
Executes dropped EXE
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.flekcht.com/usc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/9df93e80c81334711777d6650d1a1ee246003ec4919e732366ebd93eda77a174

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:SharedStrings
Create hunting rule
Author:Katie Kleemola
Description:Internal names found in LURK0/CCTV0 samples

File information

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

Malspam

Formbook

Excel file xlsx 9df93e80c81334711777d6650d1a1ee246003ec4919e732366ebd93eda77a174

(this sample)

FormBook

Executable exe 60c5ac0b248ca937816d4ec153cfe39bd50f21668e32aa5cd059c1a1aae1315c

  
URLhaus
https://urlhaus.abuse.ch/url/433110/
  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 60c5ac0b248ca937816d4ec153cfe39bd50f21668e32aa5cd059c1a1aae1315c
  
Dropping
MD5 8e194957f6ba36254ef057d6098e8a55

Comments