MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
SHA3-384 hash: 4dd6f5498b91359779231ed606d33bc5d8ad09e8efdab0348c7143a35f2b23e051aa2aa8b81d929171efd5602616eaef
SHA1 hash: 3e71408200cba9953c255b0afea641ed025c163a
MD5 hash: 012d5b9a5ed5da65e4fe2d3b42b09f02
humanhash: ohio-november-solar-crazy
File name:cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
Download: download sample
Signature Formbook
Create hunting rule
File size:1'238'528 bytes
First seen:2025-09-05 13:06:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep 24576:95EmXFtKaL4/oFe5T9yyXYfP1ijXdaxcv3wgujUbkSREX7NYs:9PVt/LZeJbInQRaxcY4ICEX
Threatray 816 similar samples on MalwareBazaar
TLSH T19645BF0273C1D062FFAB92334B5AF6115ABC79260123A61F13981DB9FE705B1563E7A3
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 adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
60
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
Verdict:
No threats detected
Analysis date:
2025-09-05 19:48:51 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/45082608-18df-475f-8964-73a6be6a4189

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/25572/
Detection(s):
SecuriteInfo.com.Script.SNH-gen.15236931.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bae0a1eb163e0ec1848255
Tags:
autoit emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context autoit compiled-script fingerprint fingerprint keylogger lolbin microsoft_visual_cc msconfig nymeria obfuscated packed packed packer_detected threat
Link:
https://www.filescan.io/uploads/68baeb6220d0ee406d96b90a/reports/051dea31-cf69-4fe7-a2eb-982ad2ef90e0/overview
Verdict:
Malicious
Labled as:
AIT:Trojan.Nymeria
Link:
https://www.hybrid-analysis.com/sample/cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-21T02:25:00Z UTC
Last seen:
2025-08-21T02:25:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/97912a88-f02d-436d-9acf-1c3491183abd
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd/
Threat name:
Win32.Trojan.AutoitInject
Create hunting rule
Status:
Malicious
First seen:
2025-08-21 05:13:53 UTC
File Type:
PE (Exe)
Extracted files:
28
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zndyq5a3fr3zfqs4svveylnlgsp62lutyf24y6obcllpv6k6zc6q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
025b8d79911d3b0384ee29386388a7b9815024baffacacab86c3f253ce89a9e5
Formbook
076299bd2f2e275a19527c2d9b88a3287ac6d7b7707f5c9269d571162691976d
Formbook
15923a9fc38c609142edebb4ff10369d18d53b82986c41b7d98c5037c191db06
Formbook
344a1d112d40622af871c3a370b4706dade1e3d164ea551d3b0e7a8e223d120a
Formbook
37a06f44a616755591465721051d8cb493f35851e776bfc2efcea342721d0879
Formbook
5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297
Formbook
82ba586870ddf21da64398098ac654ae92f389969087698b906d4efe54c6489c
Formbook
92465a1c7629bb10ce9f67b667871537887a281b66a90dd4d481612111d3dd63
Formbook
aa0227c6018d030ef8e31630cd92673ac3d30f7826a49059b4abfc26c77fd486
Formbook
cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
Formbook
error
Formbook
+ 806 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/250905-q62bmsxnv9/
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
AutoIT Executable
Suspicious use of SetThreadContext
Formbook payload
Formbook
Formbook family
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/7988a27d-a152-4281-9937-a5e455521c5f
Unpacked files
SH256 hash:
f823e6e8ca9bd52588534ec40fa9ec2e7e9621e61783aa58a9ccc9dab49b8d85
MD5 hash:
1e52bc0a874392d7af97f59df70c8c3b
SHA1 hash:
202f6ae7d619fb0fd74cf2f6e0fcd54d89f1c0d3
Link:
https://www.unpac.me/results/9950a4a4-c049-4827-8000-b372afc9224a/
SH256 hash:
17840ca8ffcbe3156adc0c138364c41520b7098da7c243d435f4098d1d312fb7
MD5 hash:
8b7fdc208816d232060bd31168007331
SHA1 hash:
23925755639a7ae67957b99b93814f10b2cfcfca
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/9950a4a4-c049-4827-8000-b372afc9224a/
Parent samples :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 hash:
cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd
MD5 hash:
012d5b9a5ed5da65e4fe2d3b42b09f02
SHA1 hash:
3e71408200cba9953c255b0afea641ed025c163a
Link:
https://www.unpac.me/results/9950a4a4-c049-4827-8000-b372afc9224a/
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/cb4788741b2c7792c25c956a4c2dab349fed2e93c175cc79c112d6faf95ec8bd

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:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Create hunting rule
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/25572/

Comments