MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e
SHA3-384 hash: ebeddc9e24e05843bc9efc0f34c244a2dc3d7a01d92e97876bb9b59b57e1bf97b537e37496794b977bb8818b5a54f541
SHA1 hash: 7d90b61cfb0f9c54d301bb8ee6af650606efe862
MD5 hash: 0bc4df2daa2bea193866307038113708
humanhash: seventeen-missouri-oscar-delta
File name:PO YTWHDF3432.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:956'928 bytes
First seen:2023-12-02 16:38:39 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:fswTVr8xmHiJ8FfU65O8bVeW6acxe+h68aQ2H3XTbKQ5eHCd:UwpAUCJ8Rvbb6aTWEn/eH
TLSH T105157ED1B1508D9AED6B0AF26C2BA53025E37E9D54A4C10C5A9EB75736F3302209FE1F
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% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon eeacac8cb6e2ba86 (561 x SnakeKeylogger, 142 x AgentTesla, 40 x Formbook)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/461909/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.59820.7683.13064.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
loki packed
Link:
https://www.filescan.io/uploads/656b628e7485e5b1ecc38eb7/reports/3b84f3e0-4b6c-4cfc-84f6-33ed51f54c22/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/623d93cf-3f2a-43d8-acd2-f50e29387e30
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1352165
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-11-21 12:08:20 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=x56buh67heb6auo4y4jw4y7hhxobnyd4admhku63mp2lp2w4wfha._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/231202-t5y2nseb22/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
c7cf6ecfb9c2b4325a439cface9453086d5ed900b05e2bc210654c34ce0ee719
MD5 hash:
3370bb8a3bfaadd045f8034d8ed2d2fe
SHA1 hash:
635d76f697928368fed73b37962f6fd93a376fbf
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
SH256 hash:
0982ab0a8c1ac6077ea03aae7f912be1ace5f320c163e371275ba299bdbc9263
MD5 hash:
aa7ca1aab84badaaaede42eaab55edf5
SHA1 hash:
201711bd71a46ff9b00a7e04b5afabdc70af2425
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
SH256 hash:
66b73b2d42e9d81b8e19595575ffc95477f1af4e7cbfcab318d3e7fde6480843
MD5 hash:
95fa30c3550271b5e9f484ff89edbd09
SHA1 hash:
9a6d103b0c5ab230bd2ebe9a7450a88276a3e74b
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
SH256 hash:
7f2e99ec43010d75b225ac01af53c4e7101292e2d6e047ec3f8274f0e063368a
MD5 hash:
5d3f6e1c84313f99e0cb3ed597cf835b
SHA1 hash:
898c7ed7bbd4e6bbaf58da31639396ecb6a02b68
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
SH256 hash:
bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e
MD5 hash:
0bc4df2daa2bea193866307038113708
SHA1 hash:
7d90b61cfb0f9c54d301bb8ee6af650606efe862
Link:
https://www.unpac.me/results/b3fd96ec-5ab8-4ad2-8253-8dbd8c9ce64c/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/bf7c1a1fdf39/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.61
Link:
https://yomi.yoroi.company/submissions/bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Malspam

Formbook

Executable exe bf7c1a1fdf3903e051dcc7136e63e73ddc16e07c00d87553db63f4b7eadcb14e

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/461909/

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