MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3. 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: 17


Intelligence 17 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3
SHA3-384 hash: 5f5b2214a2ce2fa2f421a291599d05c79f223c5cc2ae3931dbfb4468fc3ced1146bf5e272f9320e5c4dcff62fc75ae3b
SHA1 hash: 073c2b85bbd79c8c98694bc9f35fbe149bc0dd99
MD5 hash: 707ef60d5af01741c9fe9c6c8d68a643
humanhash: nitrogen-white-kitten-spring
File name:mindray new po 2408195665898 pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:769'024 bytes
First seen:2024-10-09 10:57:18 UTC
Last seen:2025-01-10 14:07:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:Yjx0FgKyM8az8HXMaSIGugFBQZINYBH1anm5FuQcol7e9wagdmEc:mx0FgKbZ8HXMaSIG/zNYBwnsFuQcoteo
Threatray 571 similar samples on MalwareBazaar
TLSH T133F4BE1466548F53C63587F82872F47153FC5F6EA01EE2655DC2AEEBB9A2F008960F83
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) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
388
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
mindray new po 2408195665898 pdf.exe
Verdict:
Suspicious activity
Analysis date:
2024-10-09 11:02:27 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/00298b00-d80b-4d52-9743-0765c790a109

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Dropper.Nanocore-10025638-0
Create hunting rule

Verdict:
Malicious
Score:
93.3%
Link:
https://cyber-fortress.com/docs/result/index.php?id=670661c0f936b5621b0bc5b1
Tags:
Underscore Micro Msil
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/670661bd119c517c2ccab1f3/reports/06ade2e7-8e41-4269-bde0-80102d2a6cd6/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3
Result
Verdict:
UNKNOWN
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/01023b7e-8c1f-480b-913c-a99d6b4bf6c3
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1529823
Signature
.NET source code contains potential unpacker
AI detected suspicious sample
C2 URLs / IPs found in malware configuration
Found direct / indirect Syscall (likely to bypass EDR)
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Switches to a custom stack to bypass stack traces
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3/
Threat name:
ByteCode-MSIL.Trojan.SnakeKeylogger
Create hunting rule
Status:
Malicious
First seen:
2024-10-09 06:37:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
29
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z6bdbuqpxunzwiifrajwnh6np6uvows2b6odqjusco2ooewzddjq._file
Verdict:
malicious
Label(s):
unknown_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
78b3e10f355de8a780c69cc622dd3bc529365ff5fa141eb291112ee7b2ef2a94
Formbook
a2780a43ac1e90a6945c78cbcbd929863ab89c72ff1f86380f48303d051bc7d4
Formbook
e1902171c2bba8b0280e747ec2457209c1b32bf899d85f241c2993fdcba1ac31
Formbook
f30297ce3c8bc97f49286ee0c14b241d6653a2e992de11213aa25a296ab485cd
Formbook
ffaa78a8a97885716e7dbe2a4a7ed9e1593ea5690f02f79f5d63c9b4964559da
Formbook
+ 561 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:cu29 discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/241009-m2tt8asfrp/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Verdict:
Malicious
Tags:
formbook
YARA:
n/a
Link:
https://app.threat.zone/submission/25254e89-6b7a-405f-af34-ac5473a0bc68
Unpacked files
SH256 hash:
9c64915d0a649bb2641dc89b7c1573bd9d49b8acf602769fe87b88e4268fcc36
MD5 hash:
2461709698d52f14ceda2c3086579224
SHA1 hash:
16f282e37f25dd43a699052d9bd23bf33bd55a43
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/1d96e14e-16fc-4697-8bba-92719fe8cd7a/
Parent samples :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 hash:
29dd57612bb291573cd81bad66ac39ee4e2abee772de65e1e977b9d985781a41
MD5 hash:
7d83fd1aada9e4f29e75021e4b957d41
SHA1 hash:
3a031ec64d60d152926582419afc1965c07310f2
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/1d96e14e-16fc-4697-8bba-92719fe8cd7a/
SH256 hash:
682c261fcd08c676ef231f46eac1c054c8df17522846b9e4adbafb62e8482dab
MD5 hash:
5a6cead6de3340dd9e0b16d599e5d1f5
SHA1 hash:
00e25f93284ff0d2493c6df3a596891d0848399e
Link:
https://www.unpac.me/results/1d96e14e-16fc-4697-8bba-92719fe8cd7a/
SH256 hash:
a44f93c0e17b2f309db2ef10f7b403ff942f8776544d6c3e64b30d79027494a5
MD5 hash:
86d7159cbebdb316409aac9d9f81a889
SHA1 hash:
bde1e21cc03543b4153c2bb7d0b4f76e1fa0f634
Detections:
FormBook
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_w0
Create hunting rule
Formbook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Link:
https://www.unpac.me/results/1d96e14e-16fc-4697-8bba-92719fe8cd7a/
SH256 hash:
cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3
MD5 hash:
707ef60d5af01741c9fe9c6c8d68a643
SHA1 hash:
073c2b85bbd79c8c98694bc9f35fbe149bc0dd99
Link:
https://www.unpac.me/results/1d96e14e-16fc-4697-8bba-92719fe8cd7a/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cf8230d20fbd/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3

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: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 cf8230d20fbd1b9b21058813669fcd7fa9575a5a0f9c38269213b4e712d918d3

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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