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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d. 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: 16


Intelligence 16 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d
SHA3-384 hash: 4db875afbcb5f3a426db828a9be0610994b576e8ba68fe55d3fce8041e15e6e3f99eb4fb6a28b13d89a553fd6993b261
SHA1 hash: 3dfc2d3e87f23960b1f997935d54ec9a45231453
MD5 hash: 2c1f1069302ba729f4b71b82c14bcd68
humanhash: nuts-uncle-uranus-april
File name:1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d
Download: download sample
Signature Formbook
Create hunting rule
File size:1'186'816 bytes
First seen:2026-09-04 20:27:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'218 x AgentTesla, 20'417 x Formbook, 12'370 x SnakeKeylogger)
ssdeep 12288:wUBcFqAG95adsLOrHz9dwg+lKx3KMmjTX6Us5Zmt9x23HSr4tOjyfUNOhjPEz/L4:Sg7adQODEpOKXTqUs59HqjyfUQtPyb
TLSH T1CA45D09C3211F89FC453CD718E64DD74AA602CAA970BD20395EB2EEFB90D5879F141E2
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
129
Origin country :
HU HU
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b26fea40-b26c-403a-ba25-409ad18cd188/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-09-04 21:18:56 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/9f54af65-90cd-4df5-8e03-232191ed7ca6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/84042/
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
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
crypt entropy formbook obfuscated obfuscated packed
Link:
https://www.filescan.io/uploads/6a9b29e3fcf8ac3ee6d1d9e7/reports/ea4625d0-76af-4568-a541-9a3383fd9897/overview
Verdict:
Malicious
Labled as:
MSILHeracles.Generic
Link:
https://www.hybrid-analysis.com/sample/1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-08-10T13:53:00Z UTC
Last seen:
2026-09-03T02:42:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b8acaa47-9544-46c5-ad5c-dc5a0c5cb4de
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d
Verdict:
inconclusive
YARA:
12 match(es)
Tags:
.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.85 Win 32 Exe x86
Link:
https://app.malva.re/file/2c1f1069302ba729f4b71b82c14bcd68
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2026-08-10 21:03:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
23 of 36 (63.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=duohowe6gz6fvci3f6fb3xblhdnzcvvfvbttziwm3i6t36zdurwq._file
Verdict:
malicious
Label(s):
Formbook
Create hunting rule
Link:
https://reports.threatray.com/4d29498b-1d27-40e4-92e4-f28ef3b4dbe5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/260904-y876zahn8z/
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
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
1d1c77589e367c5a891b2f8a1ddc2b38db9156a5a8673ca2ccda3d3dfb23a46d
MD5 hash:
2c1f1069302ba729f4b71b82c14bcd68
SHA1 hash:
3dfc2d3e87f23960b1f997935d54ec9a45231453
Link:
https://www.unpac.me/results/aba3ce05-11df-4a5b-9eb7-f85f3b6e7023/
SH256 hash:
5bd49a704ac25a53353eceb0a2231a7b998c922ae07b74a3a3fd4397a15ba394
MD5 hash:
a8519c4efe5771bbe0f319219c10a65d
SHA1 hash:
3de546099b0f5d729e85ebffc1bc79582ad1d8ff
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/aba3ce05-11df-4a5b-9eb7-f85f3b6e7023/
SH256 hash:
5211eea4e91d9fbec6c16f88f934feae8b5c659acbe8007683987a4633725d02
MD5 hash:
bfa252e70857194d7d8d1198e9acbf03
SHA1 hash:
54e1dc5bc879d2d99b60efcc8bfcc7151a2be4de
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/aba3ce05-11df-4a5b-9eb7-f85f3b6e7023/
Parent samples :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 hash:
d1b48252c49c9739a690f8ebb9767554a8dd19b15a05005e77e8ef4fe971cf9d
MD5 hash:
e5e1c0d0d8f90f380d75aaeedb3bd635
SHA1 hash:
be45f4538ad113685c946e2e0a2c8ef446ffa2b4
Link:
https://www.unpac.me/results/aba3ce05-11df-4a5b-9eb7-f85f3b6e7023/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1d1c77589e36/report/overview.html
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
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
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:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/84042/

Comments