MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c17506b0694c3a922f9abce5cbdaad4d314108b37e9677d8a14c5733f65876a1. 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: 18


Intelligence 18 IOCs YARA 5 File information Comments

SHA256 hash: c17506b0694c3a922f9abce5cbdaad4d314108b37e9677d8a14c5733f65876a1
SHA3-384 hash: ae07ae2723539826bec147029cbc3b3fa971ebb212d19631e73a3ee17a32d71d8ce5df719a4ecd07c24b4727b56c164f
SHA1 hash: c13dfb9ecc1091276557cdc443810de4bf09ce30
MD5 hash: 2b65dd0d7ee9ea1bdb466ae837c53634
humanhash: mobile-butter-mirror-virginia
File name:rNEWPOGHFGH565676_xlsx.exe
Download: download sample
Signature Formbook
File size:780'296 bytes
First seen:2025-10-16 11:31:12 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:XQ+0uzc30OTMfw+kOFOr3sU9AEziqhwgHER9VDTXFAR1DIoMfznMua0iT8kR:T07Af43sU9Ww2R9VqTInMJ0IL
Threatray 2'130 similar samples on MalwareBazaar
TLSH T15EF41298AB4AE602D5606F7409B2F271073D2FDAD821D6034EE97CEBB8B6B504D01F57
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 FXOLabs
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
155
Origin country :
BR BR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rNEWPOGHFGH565676_xlsx.exe
Verdict:
Malicious activity
Analysis date:
2025-10-16 11:34:29 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
96.5%
Tags:
underscore obfusc shell virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert invalid-signature masquerade obfuscated packed signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-16T05:16:00Z UTC
Last seen:
2025-10-18T09:14:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.42 Win 32 Exe x86
Threat name:
Win32.Backdoor.FormBook
Status:
Malicious
First seen:
2025-10-16 11:20:22 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
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
Unpacked files
SH256 hash:
c17506b0694c3a922f9abce5cbdaad4d314108b37e9677d8a14c5733f65876a1
MD5 hash:
2b65dd0d7ee9ea1bdb466ae837c53634
SHA1 hash:
c13dfb9ecc1091276557cdc443810de4bf09ce30
SH256 hash:
b794ed0c0c7d4499d0a2ffff67eb5b92dba83f4be7964591e9edad2755176511
MD5 hash:
2a576318d07470206dd7c45f7d896078
SHA1 hash:
3096b2a5ccd98583949a9f57842d5547b50bbc29
SH256 hash:
a2df9936a7fba473f166cac5325728bd87eafd388619a83af5ca2930945daf80
MD5 hash:
5a1e3da1d469ad51d5517c9f78d12c5b
SHA1 hash:
53d7bf044aaa24db09ca8e4df3555d4194927cdd
SH256 hash:
cbc7cd03c54a648044e158637bd3bd2fe3d37bb0b03122d496ec4c83f7b8f08c
MD5 hash:
d47b8df3054b4d60e81d9bfbc0b172f4
SHA1 hash:
69d47aef17aeb199cedb9a16c884b2b858e56d81
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
4e247caa6bce726ca29be1d0f447e9bc8c3d8cd70df41e34457d74659439b71d
MD5 hash:
400e3c2597993a6670d65ce3326fcfbf
SHA1 hash:
26077d92ff5151301f3247902680e2adf3b7b8f8
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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
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

Executable exe c17506b0694c3a922f9abce5cbdaad4d314108b37e9677d8a14c5733f65876a1

(this sample)

  
Delivery method
Distributed via e-mail attachment

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