MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2. 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 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
SHA3-384 hash: 2c549ca117e7267bfbf0ed38881fa40714b417e5a2e897615d98294af9646c31c9bf8d55d478f82d15caa5c6dee482cb
SHA1 hash: ccd3f2d9c6a9dfb03c0cd15a519e6c5324516b55
MD5 hash: 643981b59063b00424f8ecce2477828c
humanhash: december-alabama-alpha-nitrogen
File name:728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
Download: download sample
Signature Formbook
Create hunting rule
File size:743'424 bytes
First seen:2025-09-05 12:33:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:DE2LOwUN4jHrUL13CirC0hmp+cIdbFVDJrk5chA9dlkHD52MXfy+E/Ij9UfuO5RV:DE2BXHrK32QtFdJrycm9dqHtq+E/UUfv
TLSH T180F412502A56DA13C49267F4ADB1D3F813E8AD9EAC01D34B4EE9BDDB3C32714A9442D3
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
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
51
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
Verdict:
No threats detected
Analysis date:
2025-09-05 14:55:24 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/26af59c8-5e22-4f67-bcde-1fe0af9938df

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/25348/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68bad8edeb163e0ec18479d6
Tags:
shell virus msil
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:
obfuscated packed packed packer_detected
Link:
https://www.filescan.io/uploads/68badd66fe1969faa8a6c2fd/reports/891e146a-158c-405d-aef3-9c3a8dc0d65d/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-08-14T04:03:00Z UTC
Last seen:
2025-08-14T04:03:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2/results?tab=lookup
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f7c325d7-fde5-4a84-8675-2aa514d363e8
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.47 Win 32 Exe x86
Link:
https://app.malva.re/file/643981b59063b00424f8ecce2477828c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2/
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-14 12:55:42 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=okhflfex6z6rdw2ex3qi5acarzagclysfiew4vpfsi5vtf3pqlza._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250905-p4l89szvbx/
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
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/29b5bc1e-a4ea-4d6d-841e-70fafd8d57eb
Unpacked files
SH256 hash:
728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
MD5 hash:
643981b59063b00424f8ecce2477828c
SHA1 hash:
ccd3f2d9c6a9dfb03c0cd15a519e6c5324516b55
Link:
https://www.unpac.me/results/cddb73f3-86c6-4b95-ac85-4ce6f69ebfe1/
SH256 hash:
cb77766ea2a12e80bb70a8517dbf56538fffb48f062c505489b544d48e014b16
MD5 hash:
cd251d1b997b2a18dc75b4adc4c47c92
SHA1 hash:
1773b478cbd5946a8b359efe430213f41b5b3a47
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/cddb73f3-86c6-4b95-ac85-4ce6f69ebfe1/
SH256 hash:
4e68463959e9295134cd8a945b461600d638034eea86578c082362e87f2f9f28
MD5 hash:
77ff53e7dcb6fb00114d8e0025812ca3
SHA1 hash:
3bd2efd255107094977e28f64a351c2a714690a4
Link:
https://www.unpac.me/results/cddb73f3-86c6-4b95-ac85-4ce6f69ebfe1/
SH256 hash:
460cf4c4d4cfe4b310e0c81d240e1bf2311b5476c4c91748a8d4d0e8ebcc59e4
MD5 hash:
19f12013706b3a92e6ae1046d91b6106
SHA1 hash:
949d1e523c477aa657705bace7391ba4df66a077
Detections:
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/cddb73f3-86c6-4b95-ac85-4ce6f69ebfe1/
Parent samples :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 hash:
a4558a05eafadcb5102fa447c33e54d3e36882bc4ada16541def46ef65a99a88
MD5 hash:
3eca7fced535921fda331a7a15ce6602
SHA1 hash:
a6df0ef111f80fa65898b09d7cdb46d1c0aca12c
Detections:
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/cddb73f3-86c6-4b95-ac85-4ce6f69ebfe1/
Parent samples :
3f00459bf84d76e5dc3affcbb5211d3d1ca3e083674eaaf6e8c7137ee7dc449e
39257a3171d288b46ee3fa4572be28b0cf1ea8997c9de7e09d692cb7cf09a18f
c69a7800b5482d1e8e984e2e5ad548e057e1e9236e3ba937b167833e9c3302e2
926db80e52a53249110144db5318624331681d191ffca7a0d568b729c4fc08e3
1e6e2f52f0abce151a1c540d4f8e11663b5c57fb17171a4084831aec7e2ca844
728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2
3837602761789d5b258bbe4dbd66c19de4e60e3ec4809049d2f52269b948f079
2ff8705429d409122f0d0f34c7f50378f73e8eecfadcbf4c257439fc777e0a27
1a6c68b2f9c1c0634d001c2a320d14fb73308f380202c7aa4e2ae9d7e03f35e0
b741780191794a119c0d9323f1699cbdab8a52cce3850d12ac529393a03a7ff3
75729672a86bdef9d1dbd8c43b732eb21a544b4923fe5cbacbb67e7110aa0027
156250090928c8de06631040bb31ac52d2d4546d4e17ee35e8eedd3dcf9902ea
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/728e559497f67d11db44bee08e80408e40612f122a096e55e5923b59976f82f2

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:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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.

Cape
Cape
https://www.capesandbox.com/analysis/25348/

Comments