MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365. 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: 19


Intelligence 19 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
SHA3-384 hash: c3bf2a083e9ecd08c9f97698f871b805241790bebb8babf7cfe78d893f96f62a137cdfdfa0d8b940fe9c6fc54d5e6ee6
SHA1 hash: 616f2fb37d07cf17c69326fcef5c91005f5b13a0
MD5 hash: c7c545bdd0ba6aba5dc454df13b928e4
humanhash: montana-pip-sierra-monkey
File name:dekont.pdf.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:643'584 bytes
First seen:2025-03-24 12:24:55 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:UwQjvOn6nzx1374EIpk7g47RxiLrZd+mcLBz3YJ3WDN9yoX/:jQj2n6n/Spkn7Rkd+mC13S3wyoX
TLSH T1ACD40198AB06DA13CA9617751971F67113BC1EDDF441E3238FDCAEEFB922E149D00292
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 abuse_ch
Tags:exe FormBook geo TUR

Intelligence

File Origin
# of uploads :
1
# of downloads :
424
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
dekont.pdf.exe
Verdict:
Malicious activity
Analysis date:
2025-03-24 12:35:08 UTC
Tags:
formbook stealer xloader
Link:
https://app.any.run/tasks/4bfcc9fa-fd0c-445c-ad73-a19ca9e9928a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e1517bacb044ea849e6877
Tags:
underscore spawn shell virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/67e14f40a08e28b31da06947/reports/8c161e7f-86aa-42a4-84f5-43bcdae0c5c2/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1647031
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365/
Threat name:
Win32.Trojan.CrypterX
Create hunting rule
Status:
Malicious
First seen:
2025-03-24 12:25:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h66oyo36duvy57xz4kvrxzkkkxrckilgzu2x7qxots2clamfcnsq._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:m13o discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250324-pltwdstkt4/
Behaviour
Suspicious behavior: EnumeratesProcesses
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/0fa2de56-36e2-4b99-a624-eb624e5fd821
Unpacked files
SH256 hash:
cf68f822581c977624b554e9669f1dacd3ea27da419ce7d922c4fd7159a37655
MD5 hash:
ef21daeeb39441e28b0cc86cc0e23235
SHA1 hash:
1297757d3382f98c8d391ee50d0dd892ab4f4440
Link:
https://www.unpac.me/results/129332f8-eebc-44a3-8a4f-b1675b0de1c5/
SH256 hash:
58450388135b97d13bc6c2c0560210d243ac09dac5c0afa4b34b99a18c75417c
MD5 hash:
7916fdd41419e0ab8a26ff53005773a4
SHA1 hash:
c9b1ca21ebad17e7ac50c53ccdd968e94e3bab1b
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/129332f8-eebc-44a3-8a4f-b1675b0de1c5/
SH256 hash:
9bb95fcf7dfd0852612dd070707d64f3d5c07d43a25fa637b8887f831c933bc0
MD5 hash:
8a10c1f7a85da013ae7a70dc499cf59a
SHA1 hash:
b15e28f226cce514e0bcb7457552d21e5a3dcde4
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
Windows_Trojan_Formbook
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/129332f8-eebc-44a3-8a4f-b1675b0de1c5/
Parent samples :
1813e0f9ae87ebcdbdd10834c3fa6a57cd3192c62fa4a35e16a201f4c6d48dd7
97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
439e270481fa6cf85666be16e0f41dcbf80e2515b304573591528a1cfa3d9758
dda1b2cf6d02fd22ce9bdeac8a3a6e6ff669928524a2ec4af673bfe1c75ae690
SH256 hash:
3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
MD5 hash:
c7c545bdd0ba6aba5dc454df13b928e4
SHA1 hash:
616f2fb37d07cf17c69326fcef5c91005f5b13a0
Link:
https://www.unpac.me/results/129332f8-eebc-44a3-8a4f-b1675b0de1c5/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3fbcec3b7e1d/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/3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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
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.

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

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