MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950. 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 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950
SHA3-384 hash: 8767eb813dfa08df64ebc003b83ea3a2a8073e03ededce860fa633ea8d7b58d65300e3fcd5e2e3f09aca6ba77771586b
SHA1 hash: d885545b1e6882f7f79d5ef92635771ba2e70424
MD5 hash: c6caa960c1a82678292a928b57a85239
humanhash: arkansas-connecticut-fanta-river
File name:b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950
Download: download sample
Signature Formbook
Create hunting rule
File size:779'776 bytes
First seen:2025-10-10 06:44:17 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:xxxBVn0V6gtShqZ7IsW+m5+HaSGDcy922NmGD51pTZb+dcCZ1SEyxhKeGiLPAsu:xXB5y6ymqZQ+m5CGY020b9DTZb+6A/y2
Threatray 1'972 similar samples on MalwareBazaar
TLSH T1CCF40259270BEC03C5AE4BB109B5D3B50778AEC8F814C3579FFA1CEFB96A35025512A2
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 :
81
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
5681ea6b9b7aff4682966d3f40d1aed45f41f3858c31585a6de12b2aa0f156c4.zip
Verdict:
Malicious activity
Analysis date:
2025-10-10 07:13:22 UTC
Tags:
arch-exec formbook xloader stealer
Link:
https://app.any.run/tasks/4f255265-3190-4f62-b357-fe2e15188859

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/32154/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.50196.20550.3413.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e8acce8b7b147cc4b68cfb
Tags:
virus shell msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Sending a custom TCP request
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68e8b7a671883144ef2ff617/reports/28d3f702-b9d2-40ff-afbe-33953850e5f5/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-16T00:15:00Z UTC
Last seen:
2025-10-03T09:56:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Taskun.gen VHO:Trojan-PSW.Win32.ReaderDB.gen Trojan-Spy.Noon.HTTP.ServerRequest Trojan-PSW.Win32.Stealer.sb PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan.MSIL.Inject.sb
Link:
https://opentip.kaspersky.com/b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b2de5bbc-ca1c-440d-9ccc-1ec9a5276a4a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950
Verdict:
inconclusive
YARA:
5 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/c6caa960c1a82678292a928b57a85239
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2025-09-16 04:19:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
26 of 36 (72.22%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wgrklqvi7fagy2uf4aheyj4q2yhrwss5fpevn5odeib3hetdjfia._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
unc_loader_078
Create hunting rule
Similar samples:
2429cd622638b429d7a019f1911e9673e95b0aac9093d95db83144db4f7fb7b4
Formbook
244d604b8eaa9d2422ec6474250493e056c3322007945d11f6bbb991495c9234
Formbook
611a4e9b2138fca8a71e997efdc512eaf71d1a36ae11ecc89fcdf0f660122bae
Formbook
8b5a285d51d9d4aaebe88da69d1c22612063ec19476c3b0a6c6838fb69fcb375
Formbook
91dcef6c3b2c37efb32b7e00ef140ad7e176d8cffb3d16b1ce006bd1bb82b4b8
Formbook
b140ed87f2ba5d4ea5781adb9abeb567c743c2edfcb330d2fcd93f7a72eb5220
Formbook
e33dfc29e3a3d1e436ae244e934158aa3d47f58da62238e54d5c625f274a692e
Formbook
e5736df87221b67a2e2a614374e1d6353043b95e08448ea9260e103ab18a5c8d
Formbook
error
Formbook
+ 1'962 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251010-jds18shk2t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/2afaee6a-856b-4053-a996-d28e382ecacb
Unpacked files
SH256 hash:
b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950
MD5 hash:
c6caa960c1a82678292a928b57a85239
SHA1 hash:
d885545b1e6882f7f79d5ef92635771ba2e70424
Link:
https://www.unpac.me/results/ecf44f3c-7a62-464d-9b25-4bdd55ad2f08/
SH256 hash:
1041b538ccbc7d66e59247ef7551cde9b6c282843541585e9190a8e2e3943b12
MD5 hash:
e870d1e8f3791ccc141f85f40fd2972b
SHA1 hash:
150919ee289cffa6feb40ab8261f620dd7e26aac
Link:
https://www.unpac.me/results/ecf44f3c-7a62-464d-9b25-4bdd55ad2f08/
SH256 hash:
ca1afbbdb25b54e0d4c07f9b84b0413f52a43b6cde98879ad8ab8f4af072cc61
MD5 hash:
08b7c02de115f6bd6949b9cf47164d4b
SHA1 hash:
9307c830cedc68bfba8f518954c07c352cc063bc
Link:
https://www.unpac.me/results/ecf44f3c-7a62-464d-9b25-4bdd55ad2f08/
SH256 hash:
b316e52c562987118333f2e33a95c41793d7976dab991f54fdf00390bc699124
MD5 hash:
ded6f217349889301cc1a20339141ffe
SHA1 hash:
e6b16cc5f224b8fc10d21daf8b3b928d6cda6dfb
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/ecf44f3c-7a62-464d-9b25-4bdd55ad2f08/
SH256 hash:
a9a052597a34286cf778a5ad06f7f70f61712d1987f53a987c223d43b12073a9
MD5 hash:
e97357eb02eb9b699aad5c9c5990ef31
SHA1 hash:
5bc3719dbecef38e6087c7f70e0fd146343304da
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ecf44f3c-7a62-464d-9b25-4bdd55ad2f08/
Parent samples :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 note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b1a2a5c2a8f9406c6a85e00e4c2790d60f1b4a5d2bc956f5c32203b392634950

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
Rule name:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaagas
Create hunting rule
Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
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/32154/

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