MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c. 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: 18


Intelligence 18 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
SHA3-384 hash: f3cc88e7b29b53a26301ff363c7e72d304e127d73fb53f1b861f4ae6428f664691c55327785044ed5e40e69936e6cd03
SHA1 hash: 878a9a306195082ee8354df78ed27b029834ef8d
MD5 hash: 58f3940dcf972024bd57e275799b8c54
humanhash: kitten-dakota-butter-blossom
File name:c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
Download: download sample
Signature Formbook
Create hunting rule
File size:805'888 bytes
First seen:2025-11-06 10:22:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:P5nfL2KhBxIp0jIdxl3s1TizMC9+pqQQp1yEJHro5ZERjCZ4vkEO7xKqX:P5nTHO0852TihopxoIEpo52ReOY1
Threatray 2'126 similar samples on MalwareBazaar
TLSH T12B05BEB1F2B48455E49967B14D26D83011E62EBCECA1D30EC5DA7DA779B3FC2088294F
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10522/11/4)
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
_c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c.exe
Verdict:
No threats detected
Analysis date:
2025-11-06 10:24:30 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c6436b84-4b2e-4732-94c0-3d16ec9f6e33

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/35690/
Detection(s):
SecuriteInfo.com.Trojan.KillProc2.38785.99969472.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=690c7718ea0f3e915c237d92
Tags:
agenttesla virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-12T22:38:00Z UTC
Last seen:
2025-10-30T11:15:00Z UTC
Hits:
~1000
Detections:
Trojan.Win32.Agent.sb Trojan.MSIL.Agent.sb Backdoor.Win32.Blakken.sb Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb HEUR:Trojan.MSIL.Taskun.gen Trojan-Spy.Noon.HTTP.ServerRequest Trojan-Dropper.Win32.Injector.sb Trojan.Win32.SpeedBit.sb PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb
Link:
https://opentip.kaspersky.com/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/66a53b1b-517b-4eee-97a9-4a93a7bd8662
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.25 Win 32 Exe x86
Link:
https://app.malva.re/file/58f3940dcf972024bd57e275799b8c54
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-13 01:49:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yogaz5wkvye2xmsruyj73ci5cbpcyn2cjal7lmafcvhtjeqo3q6a._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
099aab7e93cc90414b63769dba429546e4f98953f1c8304f6b8109e6fa0a824e
Formbook
41e4dd0218aed625e7883bd3dbe43a95796360bda2e2b7fcf020af9fe5e1f1dc
Formbook
62641672222e838c59836451c910b29233433eb80581fc7f3672de2b6a33b365
Formbook
6500b4198a595f173e1009ec7f6fca35b2e62e175911726a1bf6fbb44b5897c2
Formbook
ac9d39580d471e319f1d7d221e549a09185686902ce9e16e36a54d88e91be120
Formbook
b599240a13547435a237fa14405a60999c3b3475c5e8f9a7507843a232787ef4
Formbook
c34753d6a802dcb3570354a7ecc7e930d957a28cca0d63e698ac0c0cbe67e6cc
Formbook
error
Formbook
+ 2'116 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:punm discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/251106-med59ahq7s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/55e3e6ac-442c-4a8c-a7a8-4e86207145ae
Unpacked files
SH256 hash:
c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
MD5 hash:
58f3940dcf972024bd57e275799b8c54
SHA1 hash:
878a9a306195082ee8354df78ed27b029834ef8d
Link:
https://www.unpac.me/results/2ac43d61-d31b-4b29-ba98-f8c4f1d69039/
SH256 hash:
b794ed0c0c7d4499d0a2ffff67eb5b92dba83f4be7964591e9edad2755176511
MD5 hash:
2a576318d07470206dd7c45f7d896078
SHA1 hash:
3096b2a5ccd98583949a9f57842d5547b50bbc29
Link:
https://www.unpac.me/results/2ac43d61-d31b-4b29-ba98-f8c4f1d69039/
SH256 hash:
55dd51d126c7831c9a9ed58f64918fa4303e8515df50448c02c8ee49e7eb093c
MD5 hash:
365813b1d1584cb95d76191130ac84a6
SHA1 hash:
a5ef934b58b865a420ab7f6a7c1ee7c7344a7ed6
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/2ac43d61-d31b-4b29-ba98-f8c4f1d69039/
SH256 hash:
05787cf7c5d86465ae08da7d62855f0bf4d5463a1d3e32218244ffef221bfec6
MD5 hash:
44440f534ec9b819dd0acf15ab253bed
SHA1 hash:
f06e76647b320cb2a9b04ce36002996775536c5b
Detections:
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/2ac43d61-d31b-4b29-ba98-f8c4f1d69039/
Parent samples :
62641672222e838c59836451c910b29233433eb80581fc7f3672de2b6a33b365
0738cee9bc712803e28299bc41223192abb932064478c278f10350e65f755d30
b599240a13547435a237fa14405a60999c3b3475c5e8f9a7507843a232787ef4
c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c
551c912edbc41df60d31cb5a875590f5e8167d5b18b8829459e2e220b1abb75a
f3e615622500ad4051830519118058c6a7d31411605a93c85a042512bffe9b3c
423f72873f865b00ead93f7467e8995a0ec37334c33064233c7189f8e560332d
09119a05e2e2a4857d5eae0c7d8fc474869e6e6483c876a78ddbfe91661a0cc5
d87de6be63c49499dfe482bfdafbdca13760efb66c2d8af6950919f01f52608c
cd35cc5ea80b1095440dc72d654918d474907fae82987851f5eb0915fa21184d
6e2b1a9ba0fb924774b35d3fe97e5ee232de78f7292fd7a79c678d6de974751a
283447a47c7a5e90bdf94f7fe4ca0710bbc238d471509d17f56e584b1458d63e
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/c38c0cf6caae/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/c38c0cf6caae09abb251a613fd891d105e2c37424817f5b005154f34920edc3c

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.

Cape
Cape
https://www.capesandbox.com/analysis/35690/

Comments