MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3df755dbfde8549675f88c39372d229225b1056e2957d4fe3f220e8df52593fa. 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 4 File information Comments

SHA256 hash: 3df755dbfde8549675f88c39372d229225b1056e2957d4fe3f220e8df52593fa
SHA3-384 hash: 97b9817aee8ac0205284885b58317af3ab876b6b49d1d524a6008a3ab8a8224789d38d36d363f43d901a79015696096e
SHA1 hash: 77d48b82ea04dde7d82ad7443e793fac69e6a3a2
MD5 hash: ef5a7839ac433aded37d006cc435702a
humanhash: moon-montana-papa-coffee
File name:3df755dbfde8549675f88c39372d229225b1056e2957d4fe3f220e8df52593fa
Download: download sample
Signature Formbook
File size:805'888 bytes
First seen:2025-10-09 14:53:51 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:fOhqhqhTCcF8YJE9TchjrohuH3EzZ0vlJQOQMnepO02b9b+Nh:fOhqhqhV8YJrrDH35zQ9kQcSNh
TLSH T18F0501593369ED03C4A60FF85970D7B503B88E6DE411D2AA4FFBDCEB789AB412904583
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
60
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3df755dbfde8549675f88c39372d229225b1056e2957d4fe3f220e8df52593fa
Verdict:
No threats detected
Analysis date:
2025-10-09 22:33:34 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:
shell virus micro
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Creating a process with a hidden window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
negasteal obfuscated packed packed packer_detected vbnet
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-25T00:13:00Z UTC
Last seen:
2025-10-09T07:06:00Z UTC
Hits:
~1000
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.36 Win 32 Exe x86
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Status:
Malicious
First seen:
2025-09-25 05:29:47 UTC
File Type:
PE (.Net Exe)
Extracted files:
16
AV detection:
27 of 36 (75.00%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
unc_loader_078 unc_loader_037
Similar samples:
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
Program crash
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:
3df755dbfde8549675f88c39372d229225b1056e2957d4fe3f220e8df52593fa
MD5 hash:
ef5a7839ac433aded37d006cc435702a
SHA1 hash:
77d48b82ea04dde7d82ad7443e793fac69e6a3a2
SH256 hash:
ba62e7e89557bb426f1813b06a062db822e8d0141e93936d132b58fd4382af44
MD5 hash:
9c25fef6456290916a73792f1e2f8e54
SHA1 hash:
3bc346d1f860801cf5aaed37014a2efca9170791
SH256 hash:
ca1afbbdb25b54e0d4c07f9b84b0413f52a43b6cde98879ad8ab8f4af072cc61
MD5 hash:
08b7c02de115f6bd6949b9cf47164d4b
SHA1 hash:
9307c830cedc68bfba8f518954c07c352cc063bc
SH256 hash:
8510bb1e4d5473f4bdc8ab67ffc0794e796105dcb4d4c6c1ac2f40eb14a6bfe7
MD5 hash:
14b4fc0220fdad04e37818e5334a0655
SHA1 hash:
b411c9dc8f86016ad61a32d8915ef0a82ed54bca
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
c7f4a02dd8540aa58fd7d63f6853ee70f3e831933ff4d5b9d99b4c353fb75b58
MD5 hash:
28a0a198d1b0fa5b6a13a21391f449c0
SHA1 hash:
995ae682beeb2d06231524456faa237b1a83fd7d
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: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.

Comments