MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 921bb3d94777bf5e784a777d7cf8fe1a10b393781274229c7cb5c4228122e46a. 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: 15


Intelligence 15 IOCs YARA 7 File information Comments

SHA256 hash: 921bb3d94777bf5e784a777d7cf8fe1a10b393781274229c7cb5c4228122e46a
SHA3-384 hash: 30577860cb3534cf81202360d5a369eff626fe073e7b2a476e8f52b19478cad52a5ad5acfedcd6da0713ee6afc6992fb
SHA1 hash: 96d689927ad03dabf82e47f15e0aa430259b80a3
MD5 hash: 36c7e3f91fda42baec1f04a62f5e0c0c
humanhash: delta-hamper-mockingbird-alanine
File name:INVOICE AND PACKING LIST.bat
Download: download sample
Signature Formbook
File size:968'704 bytes
First seen:2025-06-16 11:45:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:tW08Tm7VyxLVQhrmn/bqrm7VybBhAtGd3+Fev6sxRdjWPeBKaxaRCPcF+Km7Vy:ETMG6MqBUG5v6sxRRxaAPcJM
Threatray 3'888 similar samples on MalwareBazaar
TLSH T1F22512601752E702D66A03B1B9B2F7B917799ECCB501E302CEEABCF77D327006950696
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
dhash icon a2f09c8c96d2e0b2 (5 x Formbook, 2 x AgentTesla, 1 x MassLogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
406
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
INVOICE AND PACKING LIST.bat
Verdict:
No threats detected
Analysis date:
2025-06-16 12:07:53 UTC
Tags:
netreactor

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

Behaviour
Searching for the window
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
Adding an exclusion to Microsoft Defender
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Initial sample is a PE file and has a suspicious name
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1715384 Sample: INVOICE AND PACKING LIST.bat.exe Startdate: 16/06/2025 Architecture: WINDOWS Score: 100 38 www.glinra.xyz 2->38 40 www.qz.com 2->40 42 4 other IPs or domains 2->42 50 Suricata IDS alerts for network traffic 2->50 52 Multi AV Scanner detection for submitted file 2->52 54 Yara detected PureLog Stealer 2->54 58 8 other signatures 2->58 11 INVOICE AND PACKING LIST.bat.exe 4 2->11         started        signatures3 56 Performs DNS queries to domains with low reputation 38->56 process4 file5 36 C:\...\INVOICE AND PACKING LIST.bat.exe.log, ASCII 11->36 dropped 68 Adds a directory exclusion to Windows Defender 11->68 15 INVOICE AND PACKING LIST.bat.exe 11->15         started        18 powershell.exe 23 11->18         started        signatures6 process7 signatures8 70 Maps a DLL or memory area into another process 15->70 20 vTI4nYWAdwC5al.exe 15->20 injected 72 Loading BitLocker PowerShell Module 18->72 22 conhost.exe 18->22         started        process9 process10 24 control.exe 13 20->24         started        signatures11 60 Tries to steal Mail credentials (via file / registry access) 24->60 62 Tries to harvest and steal browser information (history, passwords, etc) 24->62 64 Modifies the context of a thread in another process (thread injection) 24->64 66 3 other signatures 24->66 27 iNbWXUmcuji6MY.exe 24->27 injected 30 chrome.exe 24->30         started        32 firefox.exe 24->32         started        process12 dnsIp13 44 www.qz.com 151.101.130.166, 49724, 49725, 49726 FASTLYUS United States 27->44 46 www.camocolors.shop 104.21.48.38, 49723, 80 CLOUDFLARENETUS United States 27->46 48 3 other IPs or domains 27->48 34 WerFault.exe 4 30->34         started        process14
Threat name:
ByteCode-MSIL.Trojan.MassLogger
Status:
Malicious
First seen:
2025-06-11 08:44:40 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
27 of 36 (75.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery execution
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
Unpacked files
SH256 hash:
921bb3d94777bf5e784a777d7cf8fe1a10b393781274229c7cb5c4228122e46a
MD5 hash:
36c7e3f91fda42baec1f04a62f5e0c0c
SHA1 hash:
96d689927ad03dabf82e47f15e0aa430259b80a3
SH256 hash:
eda3b10d71861d5fe15d87a544567494f39d370ab62150da6267bd7f92fae97c
MD5 hash:
b14bc3fb9eec516460162c43e036032b
SHA1 hash:
ff1a184cab4592920fdd3fa53345a44fbf9e6811
SH256 hash:
1b8d693cf7c2c48116dd89eb6243016ace896329d5af6f57b64bf60ae805a930
MD5 hash:
7f6ff15ff7d6edd34c25660e4a894bf4
SHA1 hash:
ff5e5ce167f4c1cc0bc959b998c5d3a275c2c7ed
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
eaaea91fc394360b1f1907c4da6fd033b8adea5ef9c58e0a0dcdee6889f533b1
MD5 hash:
78b090d9e507e66ce18490dfb22fa825
SHA1 hash:
bad8b42bbd0d056ffb088a0481db1bb7ae4a6cc5
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:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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 921bb3d94777bf5e784a777d7cf8fe1a10b393781274229c7cb5c4228122e46a

(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 (GUARD_CF)high

Comments