MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112
SHA3-384 hash: 16b7019fcd38634b6d802b7ea8056b8940aab9246aeabd64dabda27b9e7312865fa89f920e1c458426990229b6d1199b
SHA1 hash: 3fa28e125ed1dfca4b3eb8daf0ebc8dd1988a2c4
MD5 hash: 7daa0cbb2947346c2b8b44da29827b5a
humanhash: spring-apart-earth-cola
File name:Jwwmw0R4IrCFVXo.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:574'464 bytes
First seen:2025-10-03 13:19:32 UTC
Last seen:2025-10-06 07:29:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:t9FCRJKEqvpNizNU/YOliGAi7uCDgNVIJDCLDHYBSfYen/N:t9qhqvpNfYOliGAUsNVIQfYul
TLSH T142C412452B9CDB13E5B30BF08562D17017B9EEDCB162D2564EE42ECFB57AB810A06393
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 :
2
# of downloads :
141
Origin country :
US US
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Jwwmw0R4IrCFVXo.exe
Verdict:
Malicious activity
Analysis date:
2025-10-03 13:21:10 UTC
Tags:
formbook stealer
Link:
https://app.any.run/tasks/2d90ca1e-ad97-40af-9818-d422987f8be9

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/30043/
Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68dfcd7246f20313bf387109
Tags:
trojan spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Launching a process
Creating a file
Сreating synchronization primitives
Launching cmd.exe command interpreter
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/68dfcd7774e5a289899fe91e/reports/6adbeb51-a24d-4747-8475-2bddcd5942f8/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-03T08:26:00Z UTC
Last seen:
2025-10-05T11:35:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/87c80a15-80b5-48bc-8fd0-847315ac323a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112
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/7daa0cbb2947346c2b8b44da29827b5a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112
Threat name:
ByteCode-MSIL.Trojan.VIPKeyLogger
Create hunting rule
Status:
Malicious
First seen:
2025-10-03 11:42:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ier35xgmddxoqovey7modnsbsho54x6cgs6tyhf5p6myk4peoeja._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
unc_loader_037
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/251003-qkt1fawmx3/
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
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/3cd53fa9-a0b7-4809-95c7-d4083b5f9e16
Unpacked files
SH256 hash:
4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112
MD5 hash:
7daa0cbb2947346c2b8b44da29827b5a
SHA1 hash:
3fa28e125ed1dfca4b3eb8daf0ebc8dd1988a2c4
Link:
https://www.unpac.me/results/a0adbdab-b5bb-426e-bb20-22f4b7809fb6/
SH256 hash:
cc2b98223c9dcaf35c31d2eb743780aa3ea50177043e82633dda11aa7b7ff66b
MD5 hash:
014ace331af3642ddb3d3aa754e94950
SHA1 hash:
2ee54a101d1817ffdf1154d6bc19a7fa6db81c97
Link:
https://www.unpac.me/results/a0adbdab-b5bb-426e-bb20-22f4b7809fb6/
SH256 hash:
91bb41c5ac9d6d69225580530fdf67fbebc4d4ac23dde9fee3e885b094d63b20
MD5 hash:
aadcdd9c4430813ef11ac8356da87d01
SHA1 hash:
6150366f4b61247f3e76175d96114999fc4e4410
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/a0adbdab-b5bb-426e-bb20-22f4b7809fb6/
SH256 hash:
22a0b636397b7c13cc5d81fd885ea6a662615832e9a2ecf5e37afd4e50fe822a
MD5 hash:
21d1f6dc595a4eff54661e340d328203
SHA1 hash:
b7cfae5800d7b840d47dbb3977ca30772a30c93d
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/a0adbdab-b5bb-426e-bb20-22f4b7809fb6/
Parent samples :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 family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4123bedccc18/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/4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112

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: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

7z b0d3d3ec4af2add2287b495f34c6db1ce58107fb4e8bc979b5c1a9bd97b64ddd

Formbook

Executable exe 4123bedccc18eee83aa4c7d8e1b64191ddde5fc234bd3c1cbd7f998571e47112

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/30043/
  
Dropped by
SHA256 b0d3d3ec4af2add2287b495f34c6db1ce58107fb4e8bc979b5c1a9bd97b64ddd
  
Dropped by
MD5 52a653bf5f8f10619d60cdd416d06800

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