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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa. 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 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa
SHA3-384 hash: 10920fbd2fcbe6d38e54182e1627d2a2644177487ebf402d4adbb7d3f9439abec06d44e75db7c984af14b9c1e8a72605
SHA1 hash: 0aa0ae0a0297ba2f8738e3ce01d64752c1dc7591
MD5 hash: 27fc1568dce3fddc5a10eb955c1c3b86
humanhash: queen-mexico-arizona-texas
File name:d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:851'456 bytes
First seen:2026-10-14 16:19:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'289 x AgentTesla, 20'698 x Formbook, 12'401 x SnakeKeylogger)
ssdeep 12288:loFsD0ancMvZF8gTPHjibsZdmtYhMN12sboHqLV/fq5ZLIj9rTooC3qXHslK/lff:lOuvZF8gDjibs941os/fK5I5zhRLR8
TLSH T14B05CE042656EC12C5E906B5C8D1D2FF06B05E8BE452F24B5ADA3EAF3A31791F7942C3
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 ShadowOpCode
Tags:exe FormBook RGBLoader

Intelligence

File Origin
# of uploads :
1
# of downloads :
185
Origin country :
IT IT
Vendor Threat Intelligence
Malware configuration found for:
NETReactor RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/b0e0a38c-086c-447f-a532-28b24843b3f2/
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
https://temp.sh/HVmiT/RGBLoader.zip
Verdict:
Malicious activity
Analysis date:
2026-10-14 15:16:47 UTC
Tags:
rat pulsar netreactor ip-check evasion stealer agenttesla ftp exfiltration uac xworm screenconnect rmm-tool smtp ultravnc telegram snake keylogger
Link:
https://app.any.run/tasks/4e9aec16-036a-4d91-93e0-a1a6602cbb3d

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/92021/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3670.30056.9143.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad18100f4e17c78f7160449
Tags:
shell virus cupi
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)
Blocking the Windows Defender launch
Adding an exclusion to Microsoft Defender
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
net_reactor obfuscated packed packed
Link:
https://www.filescan.io/uploads/6acfaba3ac4a931626964723/reports/bb907bcb-f9b2-46c0-826c-de9ce0146ea8/overview
Verdict:
Malicious
Labled as:
Genie.8DN.Generic
Link:
https://www.hybrid-analysis.com/sample/d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-10-14T00:51:00Z UTC
Last seen:
2026-10-16T10:58:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/cf47424b-f2ab-4a2a-a458-cd48c61790d6
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa
Verdict:
Malware
YARA:
12 match(es)
Tags:
.Net .Net Obfuscator .Net Reactor Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.63 Win 32 Exe x86
Link:
https://app.malva.re/file/27fc1568dce3fddc5a10eb955c1c3b86
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa/
Threat name:
ByteCode-MSIL.Trojan.Spynoon
Create hunting rule
Status:
Malicious
First seen:
2026-10-14 04:00:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
28 of 38 (73.68%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2kbuh77tjjplyaypw7q5sz5mydprczc6mumtlnjvpb4hwr4gvd5a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery evasion execution rat spyware stealer trojan
Link:
https://tria.ge/reports/261014-tsxyvavw6q/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
Modifies Windows Defender DisableAntiSpyware settings
Unpacked files
SH256 hash:
d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa
MD5 hash:
27fc1568dce3fddc5a10eb955c1c3b86
SHA1 hash:
0aa0ae0a0297ba2f8738e3ce01d64752c1dc7591
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/77cdf826-b021-4637-9a1d-f3527d565cb2/
SH256 hash:
d681bea1bb32dc29c5cea28ff4c33b3fa2742ec10690d54e5fe9cc3beed302e5
MD5 hash:
6a35349fe15d898865be1c00eb93efcb
SHA1 hash:
0338f1554f2bad9ca04c879ace06c802f95e7787
Link:
https://www.unpac.me/results/77cdf826-b021-4637-9a1d-f3527d565cb2/
SH256 hash:
3cf19156f24e80bc0d6686111748a6d38552c734666e9759b4dd14f4dd614ab1
MD5 hash:
f37d60dd2d0acdefef441721ff753b85
SHA1 hash:
de5519eaa94be50c30bc086d627657e0204d17f2
Detections:
INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Link:
https://www.unpac.me/results/77cdf826-b021-4637-9a1d-f3527d565cb2/
Parent samples :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 hash:
ba8aa32fe0be379709be63e4e9e2fb80ec5bf166d210e0abbecf6090a6a83351
MD5 hash:
b02e9489c8691d3219986bc782dca93a
SHA1 hash:
00edd399d4f20b22a2688c14cbfebca8c71466d3
Link:
https://www.unpac.me/results/77cdf826-b021-4637-9a1d-f3527d565cb2/
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/d28343fff34a5ebc030fb7e1d967acc0df11645e651935b53578787b4786a8fa

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: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_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/92021/

Comments