MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
SHA3-384 hash: a763cf21ff0b977fd23feb638f2c15ef19c1c009288cd1324a0351e423d1503d34b69bd97003cd0e8d9f40cbb639ad4a
SHA1 hash: 6775ffa6784862a5a33a1a84f6022148f021910f
MD5 hash: 542520e02fb4b5bc034e98349d689a27
humanhash: happy-twenty-pluto-crazy
File name:4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
Download: download sample
Signature Formbook
Create hunting rule
File size:1'092'608 bytes
First seen:2026-06-08 08:38:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'066 x AgentTesla, 20'010 x Formbook, 12'352 x SnakeKeylogger)
ssdeep 24576:uRYW8mrQ/ThJ05rSnvsuGnXBlm0X/SyVhpo07pd:u6W8cQnU9nxhPSYU0t
TLSH T193350144235ADC06D4B78BB81860E3B507745E88F931D3139EEABEEB793A78158193D3
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 :
1
# of downloads :
83
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/140515db-ee55-4c9b-a22a-0af0a6079ef6/
Malware family:
n/a
ID:
1
File name:
_4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3.exe
Verdict:
No threats detected
Analysis date:
2026-06-08 08:59:41 UTC
Tags:
netreactor
Link:
https://app.any.run/tasks/61b20cc2-4a1f-489e-84e6-2cc7b0dd78c2

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/69595/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.3251.1011.26282.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
90.2%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a2680fdae2f98c00a68bebe
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a 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)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed vbnet
Link:
https://www.filescan.io/uploads/6a267fb81f652d68656d971f/reports/9a90db8f-176b-4bd2-ade1-5fe91a5e440f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-05-26T05:48:00Z UTC
Last seen:
2026-06-02T19:00:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/444674b8-ab4d-4ae8-983d-695410c2d7a9
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-05-27 01:04:45 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
28 of 36 (77.78%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=j5cekaefqziuk45mvlydyq6b3ah63gh7hty5ekya4lriobhp6kzq._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260608-kkktwaa18x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3
MD5 hash:
542520e02fb4b5bc034e98349d689a27
SHA1 hash:
6775ffa6784862a5a33a1a84f6022148f021910f
Link:
https://www.unpac.me/results/b93ab4e8-2816-418b-876b-51de707ca777/
SH256 hash:
f38d73ebcddc1ce3fe9c83e3d7f816814da2c6e398a541e91618d7d94dde05c9
MD5 hash:
a7fabc272e527a9bfc36b89c995bbe53
SHA1 hash:
2b8867d17f39b15ff8ebce301c512537d1081071
Link:
https://www.unpac.me/results/b93ab4e8-2816-418b-876b-51de707ca777/
SH256 hash:
5a05fe65bb90ba32b8bb6902a44d9f604fd6c447348c48288125ac2e983f67a9
MD5 hash:
e3d61fd1a344df05ff875fc8d10fe652
SHA1 hash:
50ace5088e1d38c8fe573590b2f712b34d47e64d
Link:
https://www.unpac.me/results/b93ab4e8-2816-418b-876b-51de707ca777/
SH256 hash:
bf3b644788b1a9bdd6c11d74a7c33370117cd93235c0fa1c981457f5d2e937e6
MD5 hash:
f5d4a39c5be8a2f906ad70d9f54af9ff
SHA1 hash:
620326695bcf32bbc033c08ff7fb90f89b4f4ca2
Link:
https://www.unpac.me/results/b93ab4e8-2816-418b-876b-51de707ca777/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4f4445008586/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.45
Link:
https://yomi.yoroi.company/submissions/4f4445008586514573acaaf03c43c1d80fed98ff3cf1d22b00e2e28704eff2b3

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

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/69595/

Comments