MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ab560f8779a244097805aae7b6c95eecd6de7909c9ca0bffa7f6a7fda28eb6b2. 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

SHA256 hash: ab560f8779a244097805aae7b6c95eecd6de7909c9ca0bffa7f6a7fda28eb6b2
SHA3-384 hash: 8b58cacd12a9a4be57408c873db57d94ef5404ad0ba92a7721cd37186e43fe05afbe6590ab2aae52df1b7a521cb4dade
SHA1 hash: a940d26c9313fa5c61e30160bb21ca64c8635473
MD5 hash: bff892d16f1bf32529be8d5452226f06
humanhash: twenty-yellow-mobile-cat
File name:over due invoices.xs.exe
Download: download sample
Signature Formbook
File size:860'680 bytes
First seen:2025-10-08 12:46:04 UTC
Last seen:2025-10-09 08:59:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:ZHAAD4WEC7BbXVQrRsYsJs86qPd0rFAA1ed0T19QgAS/6gne50kR:ZHA04wBoRPcsHK000HKCte5z
Threatray 1'808 similar samples on MalwareBazaar
TLSH T1CC051100E2EF9311CD35CEB18FFDA6612722BE4C6AE8C5099EE73846A47165C716F217
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 Anonymous
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
98
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
over due invoices.xs.exe
Verdict:
Malicious activity
Analysis date:
2025-10-08 13:23:55 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.1%
Tags:
virus spawn shell
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
expired-cert explorer invalid-signature lolbin masquerade packed signed vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-08T03:47:00Z UTC
Last seen:
2025-10-10T08:45:00Z UTC
Hits:
~1000
Detections:
Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan.MSIL.Taskun.sb HEUR:Trojan-PSW.MSIL.Agensla.gen Trojan-PSW.Win32.Stealer.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb
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
Threat name:
Win32.Trojan.XWorm
Status:
Malicious
First seen:
2025-10-08 07:32:46 UTC
File Type:
PE (.Net Exe)
Extracted files:
23
AV detection:
25 of 38 (65.79%)
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:
ab560f8779a244097805aae7b6c95eecd6de7909c9ca0bffa7f6a7fda28eb6b2
MD5 hash:
bff892d16f1bf32529be8d5452226f06
SHA1 hash:
a940d26c9313fa5c61e30160bb21ca64c8635473
SH256 hash:
57dacc029e706ae184b9f8c3f8efe78b04919967b622d84261d2bf6cc7b1ff62
MD5 hash:
e0d6c5d15b34e08ed4602a1f2a22dd00
SHA1 hash:
129df54a2a54863c5fa96531d12be6702ed302cc
SH256 hash:
868f9844cd6f0ea25b1115f509044f21f71a787afe9b706eb44c11f4942cb563
MD5 hash:
55786c675054c44592975b5fa7f643fb
SHA1 hash:
851f36ec99a212528ee1d5070af0907aaa05c483
SH256 hash:
a634851a3cf1e2c579b889bbde43c5bab798200f181bc6bdec31ac22607b63c0
MD5 hash:
d0e3032dfa1ba9f34bfd1560b5eb8715
SHA1 hash:
bd8398a26e91c7ea8dad5cb600223285cbcbb100
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
da008f13520d8e9374a519c3a4fa5f2e6d32760153dc5e20dca5dd9d26fa0e65
MD5 hash:
1b444e90ddd86123891a051ae1a74ffb
SHA1 hash:
3477f4c764a1e9d004786599f0b979416ed9743f
Detections:
win_formbook_g0
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.

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