MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d. 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 21 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
SHA3-384 hash: 22a127984d1080a1615ec38aa3d16d733b48b25cf54952e8c09eb94924fd13e7229b3ed780f7cac9e51213bc099676bc
SHA1 hash: 938795ac827986f10e038ffebf10182cfd0cb008
MD5 hash: 1e312625f60d43558de6b0b2b1144e62
humanhash: wisconsin-missouri-blue-lima
File name:SecuriteInfo.com.Variant.Cerbu.264717.29379.10758
Download: download sample
Signature Formbook
Create hunting rule
File size:1'269'248 bytes
First seen:2025-08-25 03:17:50 UTC
Last seen:2025-08-25 04:16:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (341 x Formbook, 94 x AgentTesla, 56 x a310Logger)
ssdeep 24576:15EmXFtKaL4/oFe5T9yyXYfP1ijXdaIOXjqEiHHvdJRRwI8:1PVt/LZeJbInQRaIOWbHv3s
TLSH T10C45AE03738D826EFF9B91326A76E231467C6F270123A51F33D85D7DB9701A1462E6E2
TrID 40.3% (.EXE) Win64 Executable (generic) (10522/11/4)
19.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
17.2% (.EXE) Win32 Executable (generic) (4504/4/1)
7.7% (.EXE) OS/2 Executable (generic) (2029/13)
7.6% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
94
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Variant.Cerbu.264717.29379.10758
Verdict:
No threats detected
Analysis date:
2025-08-25 03:20:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/883a8f99-b379-4662-b055-ad38eff6bf0b

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/23311/
Detection(s):
SecuriteInfo.com.Variant.Cerbu.264717.29379.10758.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68abd60f6eed937d746d9972
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Cerbu.Generic
Link:
https://www.hybrid-analysis.com/sample/3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-24T22:49:00Z UTC
Last seen:
2025-08-24T22:49:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ee991835-4611-44d5-84f8-c64b21e2033f
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
Verdict:
Malware
YARA:
7 match(es)
Tags:
AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86
Link:
https://app.malva.re/file/1e312625f60d43558de6b0b2b1144e62
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-25 01:47:13 UTC
File Type:
PE (Exe)
Extracted files:
14
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=gzdovw7yus2fdsapyxr5osspxxfy2jrtsm6n6o5ahbjt4vwjr2oq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250825-dtxrgaam8z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/12baae1e-4793-4e92-aead-8bf18b92c5ab
Unpacked files
SH256 hash:
3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d
MD5 hash:
1e312625f60d43558de6b0b2b1144e62
SHA1 hash:
938795ac827986f10e038ffebf10182cfd0cb008
Link:
https://www.unpac.me/results/ccde64ad-4e56-45fc-9bb0-b62fef927763/
SH256 hash:
26886164937e603008f46830d4960a5f33da4112b2a1699d489955a5c339ab31
MD5 hash:
20836f6e4111969e2c0af518634e9368
SHA1 hash:
4471caa084c8936f1a13e56503959508941f00ff
Link:
https://www.unpac.me/results/ccde64ad-4e56-45fc-9bb0-b62fef927763/
SH256 hash:
558fcd59c2c12e5fd004ab688fc20363fba8a0d1c1ea9aaf71fea2997cad91e1
MD5 hash:
05d72bd966f8098a2deada9f7420fdea
SHA1 hash:
b29ba8a165058d6bdc40eadc1df8662551d9ee84
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/ccde64ad-4e56-45fc-9bb0-b62fef927763/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3646eadbf8a4/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/3646eadbf8a4b451c80fc5e3d74a4fbdcb8d2633933cdf3ba038533e56c98e9d

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:AutoIT_Compiled
Create hunting rule
Author:@bartblaze
Description:Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.
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__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
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:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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/23311/

Comments