MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: 53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03
SHA3-384 hash: 8cdea4f13b13c2398f2f24f90f522eb76ef074b1f424521a94ffc3f65ea5ebd5045f5b03452a428284606483f418c3a3
SHA1 hash: ca7006f2345678b15cdaa3fd0e70ec6d05862930
MD5 hash: ba353539a8f310d60005f004fb94e24f
humanhash: texas-skylark-idaho-mountain
File name:ba353539a8f310d60005f004fb94e24f.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:2'319'872 bytes
First seen:2022-11-11 18:33:25 UTC
Last seen:2022-11-11 20:52:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 24576:5Mq5HYOYUAm1yHBTjstd5nr6rn9VCZvlB1DfA+D0EdPrxPkMN0V9khzb+xHBmN+B:P5DTVYBTKYn9VuvlDjZdhN0T0zbmENn
TLSH T130B5334011F83EA0D51229B69CF313CBB5BD0E63DAE7D6A61F26D769D41B73091AC02B
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
179
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ba353539a8f310d60005f004fb94e24f.exe
Verdict:
Malicious activity
Analysis date:
2022-11-11 18:34:54 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/7fb2bd69-c534-4f86-9dba-49306a78c21e

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/332551/
Detection(s):
SecuriteInfo.com.Variant.Lazy.262665.26357.30548.UNOFFICIAL
Create hunting rule

SecuriteInfo.com.Variant.Lazy.262665.16447.8378.UNOFFICIAL
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636e959b37a53af3a7f567d0/reports/0cfa8264-1ff9-407d-a886-8047c66cc299/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/4d583b6f-2017-4720-ace3-54b72c626d3d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1111452
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Encrypted powershell cmdline option found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 744145 Sample: vpNsBiDG5n.exe Startdate: 11/11/2022 Architecture: WINDOWS Score: 100 46 Malicious sample detected (through community Yara rule) 2->46 48 Antivirus detection for URL or domain 2->48 50 Antivirus / Scanner detection for submitted sample 2->50 52 7 other signatures 2->52 10 vpNsBiDG5n.exe 1 7 2->10         started        14 Acoofgeqa.exe 3 2->14         started        process3 file4 36 C:\Users\user\AppData\...\Acoofgeqa.exe, PE32 10->36 dropped 38 C:\Users\...\Acoofgeqa.exe:Zone.Identifier, ASCII 10->38 dropped 40 C:\Users\user\AppData\...\vpNsBiDG5n.exe.log, ASCII 10->40 dropped 54 Encrypted powershell cmdline option found 10->54 56 Tries to detect virtualization through RDTSC time measurements 10->56 16 vpNsBiDG5n.exe 10->16         started        19 powershell.exe 16 10->19         started        58 Antivirus detection for dropped file 14->58 60 Multi AV Scanner detection for dropped file 14->60 62 Machine Learning detection for dropped file 14->62 21 powershell.exe 11 14->21         started        signatures5 process6 signatures7 42 Modifies the context of a thread in another process (thread injection) 16->42 44 Maps a DLL or memory area into another process 16->44 23 explorer.exe 16->23 injected 25 conhost.exe 19->25         started        27 conhost.exe 21->27         started        process8 process9 29 Acoofgeqa.exe 3 23->29         started        signatures10 64 Encrypted powershell cmdline option found 29->64 32 powershell.exe 11 29->32         started        process11 process12 34 conhost.exe 32->34         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03/
Threat name:
Win32.Trojan.Woreflint
Create hunting rule
Status:
Malicious
First seen:
2022-11-11 17:41:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
19 of 25 (76.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=kpkvrmxzhg7447odxhlp34gp3ewzm26mpq6lhdu2afy6633xribq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
masslogger
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:nurs persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/221111-w7rfqacf4z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Formbook payload
Formbook
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/cba77ab1-d06b-41f8-a1c5-9263e869453c
Unpacked files
SH256 hash:
60947266f4a673c84f197c2026fccfa9170b1492d0e15207d51992d88c3c2c16
MD5 hash:
d568c6b395686d7b1497ebb4e8a7dc91
SHA1 hash:
06e0c90aff00997b6fb2f5ad3d808ac332ebabe4
Link:
https://www.unpac.me/results/8e012406-f42d-43ce-99f2-e96b1e518322/
SH256 hash:
53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03
MD5 hash:
ba353539a8f310d60005f004fb94e24f
SHA1 hash:
ca7006f2345678b15cdaa3fd0e70ec6d05862930
Link:
https://www.unpac.me/results/8e012406-f42d-43ce-99f2-e96b1e518322/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/53d558b2f939/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
iSpy Keylogger
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

Formbook

Executable exe 53d558b2f939bfce7dc3b9d6fdf0cfd92d966bcc7c3cb38e9a0171ef6f778a03

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/332551/
  
URLhaus
https://urlhaus.abuse.ch/url/2408115/
  
Delivery method
Distributed via web download

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