MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a. 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: 14


Intelligence 14 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
SHA3-384 hash: 9546cf809341b98396d0e29bf94f1be4c9999447116b00056de84310b5f2d0ffd9a3424373076c80c1ec58cd8c71a2dd
SHA1 hash: 836c7f120ed210e92c6235e7347a2920d1e49ad9
MD5 hash: dd5099fddab1951e86685f395cb07e55
humanhash: pluto-hotel-timing-seventeen
File name:PRF.FAT.POLYSTAN0144.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:612'352 bytes
First seen:2025-03-24 08:45:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'662 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Oix1qAJwaLzWrU+9U8rAUfVFnl6YQybXuxkWoG6h4:OW1lz+28MUfzn3HXWova
TLSH T18CD40154222AEB17C5661BF54A11C17503F65DECB822EB0B8FDA7DCB3ABAF042950707
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 lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
36
Origin country :
DE DE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67e24728bb84e066269ebc1f
Tags:
trojan spawn shell
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67e11be8c26eb3fd74f4fdf6/reports/b4a0ba25-8e6a-4503-88b9-60a777b0bedb/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
Result
Verdict:
MALICIOUS
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1646835
Behaviour
Behavior Graph:
n/a
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-03-20 11:31:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=s64clzyt3m422b7g3tl62n7pqa3z6kby7dej35jyxfbmcxcl7qva._file
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-kpbrrsyls2/
Behaviour
Enumerates system info in registry
Modifies registry class
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
Deletes itself
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/01dd4ac3-d2f9-4fcf-a8d1-74562e99dfdd
Unpacked files
SH256 hash:
97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
MD5 hash:
dd5099fddab1951e86685f395cb07e55
SHA1 hash:
836c7f120ed210e92c6235e7347a2920d1e49ad9
Link:
https://www.unpac.me/results/6c91bdad-9957-495c-b2df-5ff62f9d1500/
SH256 hash:
1099cb591970a40f8b6163c4735d1def3bf65b68b125b48f311ffc062b99a1f0
MD5 hash:
667e1ded07da1f78708c349d6607e8d8
SHA1 hash:
16700855fe57d9e1021c07ddf5c8b13ddf5c536b
Link:
https://www.unpac.me/results/6c91bdad-9957-495c-b2df-5ff62f9d1500/
SH256 hash:
b3ce014e86eb03d46c6664e3b33b1910b84e6dada96ee57f9c168e4ba3f07458
MD5 hash:
397a05c7938a68c0b5f9bc774008808a
SHA1 hash:
e0b568f8e376dadbd3eac84218851558ab114527
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/6c91bdad-9957-495c-b2df-5ff62f9d1500/
SH256 hash:
a2d10d3cacd717b6cd521f368a94b3c77b804706953b8bca58cb6991e269b89e
MD5 hash:
63977079418c6c7df3aa311673944cbf
SHA1 hash:
64f4afeff76fd77f4fa823a9dc5bd854a7185bb8
Link:
https://www.unpac.me/results/6c91bdad-9957-495c-b2df-5ff62f9d1500/
SH256 hash:
9bb95fcf7dfd0852612dd070707d64f3d5c07d43a25fa637b8887f831c933bc0
MD5 hash:
8a10c1f7a85da013ae7a70dc499cf59a
SHA1 hash:
b15e28f226cce514e0bcb7457552d21e5a3dcde4
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/6c91bdad-9957-495c-b2df-5ff62f9d1500/
Parent samples :
1813e0f9ae87ebcdbdd10834c3fa6a57cd3192c62fa4a35e16a201f4c6d48dd7
97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a
3fbcec3b7e1d2b8efef9e2ab1be54a55e2252166cd357fc2ee9cb42581851365
439e270481fa6cf85666be16e0f41dcbf80e2515b304573591528a1cfa3d9758
dda1b2cf6d02fd22ce9bdeac8a3a6e6ff669928524a2ec4af673bfe1c75ae690
Please note that we are no longer able to provide a coverage score for Virus Total.

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.

Malspam

Formbook

Executable exe 97b825e713db39ad07e6dcd7ed37ef80379f2838f8c89df538b942c15c4bfc2a

(this sample)

  
Delivery method
Distributed via e-mail attachment

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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