MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820. 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: 20


Intelligence 20 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820
SHA3-384 hash: b9eba871bc203e4687e38f4354456fc1bfc044a542b7444c09c3cfce3e33d7973bac9713006f155c6f1763081cd45b72
SHA1 hash: 9074a64d8021f79809ace8512fe6e1688ef97292
MD5 hash: e51ab8898fdbbd02d4fef527cc7971f3
humanhash: coffee-vegan-oscar-sweet
File name:8ua1mx33IO6Cyke.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:570'880 bytes
First seen:2025-10-08 13:05:58 UTC
Last seen:2025-10-09 09:43:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'664 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:PHAFoR7x9SmRHfbeuOoSSw5cKl+Bh2/BUkcBbbGP47Wvt6o4WEC76:PHA6RDSm1euOj5cKYqUnbbGwavth4w
TLSH T158C4125905AECD03C05A7F7429B1D27063B0AEADDF12D51B6ECF2D8FBD36A018B59242
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 James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
125
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
8ua1mx33IO6Cyke.exe
Verdict:
Malicious activity
Analysis date:
2025-10-08 13:08:54 UTC
Tags:
formbook stealer
Link:
https://app.any.run/tasks/69dbca48-ac78-42ee-8cb1-ac50476370ac

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/31133/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e661ee277c2bd8bc5de1ba
Tags:
phishing spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
explorer lolbin obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68e661e85a3bccf09ebd44dc/reports/78f6426a-2705-4b6f-bd66-8227500cec4b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-08T04:02:00Z UTC
Last seen:
2025-10-10T09:04:00Z UTC
Hits:
~1000
Detections:
Trojan.MSIL.Crypt.sb Backdoor.Win32.Blakken.sb VHO:Trojan-PSW.MSIL.Convagent.gen Trojan-Dropper.Win32.Injector.sb Trojan.Win32.SpeedBit.sb Trojan.MSIL.Taskun.sb Trojan.MSIL.Inject.sb PDM:Trojan.Win32.Generic HEUR:Trojan-PSW.MSIL.Agensla.gen Trojan-Spy.Win32.Noon.sb Trojan.Win32.Agent.sb
Link:
https://opentip.kaspersky.com/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d0b00bec-06e9-4c33-8f69-74bd4fbb89ce
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.39 Win 32 Exe x86
Link:
https://app.malva.re/file/e51ab8898fdbbd02d4fef527cc7971f3
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-10-08 08:31:51 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=t5ktxp5ncliqphclbe24k5aquakjwav5mzu5grbrvop3czunvaqa._file
Verdict:
malicious
Label(s):
unc_loader_037
Create hunting rule
formbook
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:hi23 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/251008-qcgp5swzes/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
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/9c0457db-6918-4207-80f6-b0ca3d01fb85
Unpacked files
SH256 hash:
9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820
MD5 hash:
e51ab8898fdbbd02d4fef527cc7971f3
SHA1 hash:
9074a64d8021f79809ace8512fe6e1688ef97292
Link:
https://www.unpac.me/results/18c2e1bd-234d-4f4e-a653-d1755061c3c2/
SH256 hash:
a663bd1cc709d60956ea8470707354d2275e8e23b82391da305db2e23e0a5278
MD5 hash:
0a436c9e1d7ae69aa5df55d903fd6d46
SHA1 hash:
24a57ebc128ce2e589e166079f03820cbb100203
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/18c2e1bd-234d-4f4e-a653-d1755061c3c2/
SH256 hash:
cc2b98223c9dcaf35c31d2eb743780aa3ea50177043e82633dda11aa7b7ff66b
MD5 hash:
014ace331af3642ddb3d3aa754e94950
SHA1 hash:
2ee54a101d1817ffdf1154d6bc19a7fa6db81c97
Link:
https://www.unpac.me/results/18c2e1bd-234d-4f4e-a653-d1755061c3c2/
SH256 hash:
22a0b636397b7c13cc5d81fd885ea6a662615832e9a2ecf5e37afd4e50fe822a
MD5 hash:
21d1f6dc595a4eff54661e340d328203
SHA1 hash:
b7cfae5800d7b840d47dbb3977ca30772a30c93d
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/18c2e1bd-234d-4f4e-a653-d1755061c3c2/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/9f553bbfad12/report/overview.html
Please 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/9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820

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: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

zip 22d7b58f1a6ea100f92f785cd78da1937fabc7c3fa84196536b403fc9afa6174

Formbook

Executable exe 9f553bbfad12d1079c4b0935c57410a0149b02bd6669d34431ab9fb1668da820

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/31133/
  
Dropped by
SHA256 22d7b58f1a6ea100f92f785cd78da1937fabc7c3fa84196536b403fc9afa6174
  
Dropped by
MD5 c7a90f6d906c523e9367b2d2ea82c8f2

Comments