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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af. 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 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af
SHA3-384 hash: 1d42c99ee1f0727b458f3b411c44b89d16ee9732671cede1476cf79927e05c2f82aa6b7f6b425767696e171dea28e0de
SHA1 hash: 0f09913808628c32922a249665bfa8d3fd0c8caf
MD5 hash: a3f9610a2f942794f8ee9761ef0ae415
humanhash: carpet-bakerloo-bakerloo-eighteen
File name:39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af
Download: download sample
Signature Formbook
Create hunting rule
File size:865'280 bytes
First seen:2026-11-09 09:02:16 UTC
Last seen:2026-11-09 09:28:04 UTC
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'353 x AgentTesla, 20'852 x Formbook, 12'417 x SnakeKeylogger)
ssdeep 12288:VeM+mztduSATMhrt5v9hp91fZebk9QvgA3PxJMbXqM9CXtFsPHC2oUBy7oekD/:3duSATMj57tZCk9Q3fMPMYi6bF
TLSH T17005DF196667CC12E4B62FB29CF0D4B007F26D59E032D25A0FD61CDB7A23B91AD81727
TrID 73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.6% (.EXE) Win64 Executable (generic) (6522/11/2)
4.5% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
162
Origin country :
FR FR
Vendor Threat Intelligence
Malware configuration found for:
NETReactor RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/8c83a181-e97d-4f90-be88-e82cab27a8ce/
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
Malicious activity
Analysis date:
2026-11-09 22:12:15 UTC
Tags:
netreactor rgbloader loader
Link:
https://app.any.run/tasks/8dfa9128-7214-4597-a453-ce2ecaa4f9b4

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/98698/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6af1ca15ac89c90fc65ab789
Tags:
injection virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
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)
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-26T23:39:00Z UTC
Last seen:
2026-11-04T09:53:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af/results?tab=lookup
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/2001402
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
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)
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)
Unusual module load detection (module proxying)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 2001402 Sample: pDLeuRio8x.exe Startdate: 09/11/2026 Architecture: WINDOWS Score: 100 28 www.29870889.xyz 2->28 30 xelvireq.shop 2->30 32 17 other IPs or domains 2->32 54 Suricata IDS alerts for network traffic 2->54 56 Antivirus detection for URL or domain 2->56 58 Antivirus / Scanner detection for submitted sample 2->58 62 6 other signatures 2->62 8 pDLeuRio8x.exe 3 2->8         started        12 FSbfW85piN.exe 2->12 injected 14 tm6yAnAB.exe 2->14 injected signatures3 60 Performs DNS queries to domains with low reputation 28->60 process4 dnsIp5 26 C:\Users\user\AppData\...\pDLeuRio8x.exe.log, ASCII 8->26 dropped 64 Unusual module load detection (module proxying) 8->64 66 Switches to a custom stack to bypass stack traces 8->66 17 pDLeuRio8x.exe 8->17         started        20 pDLeuRio8x.exe 8->20         started        22 cscript.exe 13 12->22         started        34 kloppltd.co.ke 41.80.37.20, 49736, 49737, 49738 SafaricomKE Kenya 14->34 36 www.rau-horst.de 46.38.249.11, 49752, 49753, 49754 NETCUP-ASnetcupGmbHDE Germany 14->36 38 7 other IPs or domains 14->38 file6 signatures7 process8 signatures9 40 Maps a DLL or memory area into another process 17->40 42 Queues an APC in another process (thread injection) 17->42 44 Found direct / indirect Syscall (likely to bypass EDR) 17->44 46 Tries to steal Mail credentials (via file / registry access) 22->46 48 Tries to harvest and steal browser information (history, passwords, etc) 22->48 50 Modifies the context of a thread in another process (thread injection) 22->50 52 2 other signatures 22->52 24 firefox.exe 22->24         started        process10
Verdict:
Malware
YARA:
12 match(es)
Tags:
.Net .Net Obfuscator .Net Reactor Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.60 Win 32 Exe x86
Link:
https://app.malva.re/file/a3f9610a2f942794f8ee9761ef0ae415
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af/
Threat name:
Win32.Spyware.Noon
Create hunting rule
Status:
Suspicious
First seen:
2026-10-27 02:37:03 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
24 of 36 (66.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hha5d3rpjtceegikj2xyo3pg55exl2fgsxle23jxcmxinofrc2xq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/261109-kznt3swv6m/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Malware Family:
n/a
Verdict:
Suspicious
Tags:
injector
YARA:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Link:
https://app.threat.zone/submission/e9a339d3-4b6c-4831-a9ad-73a04fc7e9a0
Malware Family:
msil
Create hunting rule
Malicious:
True
Tags:
dotnet debugger-check exec-delay polymorphic peexe
Link:
https://intel.virussign.com/intelligence/file/39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af
Unpacked files
SH256 hash:
39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af
MD5 hash:
a3f9610a2f942794f8ee9761ef0ae415
SHA1 hash:
0f09913808628c32922a249665bfa8d3fd0c8caf
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/26fdf8ef-d4f9-41a2-9312-be2c810898c8/
SH256 hash:
32d49254a6a5690cc30ae4b3905668aaa5c54a4ed3220fb948ce350236e31eed
MD5 hash:
06c1de7dfce57a1bf49a1bbcb78d32b4
SHA1 hash:
6682cfa0290a126ce06089fab8007fbc68d855ea
Link:
https://www.unpac.me/results/26fdf8ef-d4f9-41a2-9312-be2c810898c8/
SH256 hash:
0ccda5fb8da309f4ca1af9510db9bbcbf8d91c6a12758f2ff05bfc885d46e764
MD5 hash:
19c91fe72a4e7aa7b59d84baf6ce9383
SHA1 hash:
672187a0dbc9f2314ffb8b34f9601fb29b2eb1d7
Link:
https://www.unpac.me/results/26fdf8ef-d4f9-41a2-9312-be2c810898c8/
SH256 hash:
b9ef8fef5b455817a626806044ae6567cb1f7bafaa7d17a7724a02a25f90d2d2
MD5 hash:
86ce51cb209a5dcd67d0b47572b4e9e2
SHA1 hash:
b6ea8196e73da138d403048b659127ffd5c0c73f
Link:
https://www.unpac.me/results/26fdf8ef-d4f9-41a2-9312-be2c810898c8/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/39c1d1ee2f4cc442190a4eaf876de6ef4975e8a695d64d6d37132e86b8b116af

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:DotNet_RGB_Embedded_AssemblyLoader_Hunt
Create hunting rule
Author:ShadowOpCode
Description:Hunt .NET bitmap RGB extraction combined with embedded resources and assembly loading
Rule name:exploit_any_poppopret
Create hunting rule
Author:Jeff White [karttoon@gmail.com] @noottrak
Description:Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.
Rule name:HUNT_NET_Loader_ImagePixel_To_AssemblyLoad
Create hunting rule
Author:Anish Bogati
Description:Hunting: .NET loader that reads pixel data from an embedded image, loads it as a .NET assembly, and runs it via reflection or late binding. Catches bitmap-steganography loaders.
Rule name:NET
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:WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Derialock (pe, etat extrait)
Rule name:WIN_Malware_XWorm_ForgeAuto_6b06c990_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects XWorm (pe, etat extrait)
Rule name:WIN_Sample_Unique_69354b41
Create hunting rule
Author:Marjoriefort
Description:Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

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/98698/

Comments