MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
SHA3-384 hash: a9a4f8f1eac0e965dd7075e30149d86d5ceda38fa745fc7730d8b15169eb9542b1a94de6522a3dd675827cdfd7497010
SHA1 hash: f72ca563fdd6ed3893e77ca43a91658da7e268b5
MD5 hash: eaee57ce6eb8a32b1851a5eefc5df546
humanhash: pluto-mango-fillet-alaska
File name:b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
Download: download sample
Signature Formbook
Create hunting rule
File size:285'184 bytes
First seen:2026-05-08 13:14:34 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 6144:h9NxVB0Y+UvrjOs6cGsSrN7ONDoUG8KX+sWEEDK66vNyCnkrv5nq6X9ttts78XHR:LNxgY+2Pp07z98dsju6Rkrv5nqe9tttc
TLSH T11354238A89C236B5FD740BB3298ADCD8364A713A834770133E511E7F5772AC86412F9E
TrID 34.1% (.EXE) Win64 Executable (generic) (6522/11/2)
23.5% (.EXE) Win32 Executable (generic) (4504/4/1)
10.7% (.ICL) Windows Icons Library (generic) (2059/9)
10.6% (.EXE) OS/2 Executable (generic) (2029/13)
10.4% (.EXE) Generic Win/DOS Executable (2002/3)
Magika pebin
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
133
Origin country :
HU HU
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
_b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2.exe
Verdict:
No threats detected
Analysis date:
2026-05-08 14:14:22 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/30030138-e453-48fc-9043-cdbf93528d2e

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/65252/
Detection(s):
SecuriteInfo.com.Variant.Babar.708894.81474193.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed
Link:
https://www.filescan.io/uploads/69fde294792fe2d217addf70/reports/73f22ad9-e5b7-44f4-87ba-dc1a979f37c3/overview
Verdict:
Malicious
Labled as:
Babar.Generic
Link:
https://www.hybrid-analysis.com/sample/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-04-14T02:03:00Z UTC
Last seen:
2026-05-08T11:24:00Z UTC
Hits:
~10
Detections:
Trojan-Spy.Win32.Noon.sb HEUR:Trojan-Spy.Win32.Noon.pef
Link:
https://opentip.kaspersky.com/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/afc3b6e1-18a3-4e15-b899-34fb7d270de2
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2026-04-14 07:33:12 UTC
File Type:
PE (Exe)
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wsui25k5jleiuoafqlwvgmnzbooijbzonnwqj53t77aiwtn467ba._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260508-qjqavsc19n/
Behaviour
Suspicious behavior: EnumeratesProcesses
Program crash
System Location Discovery: System Language Discovery
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2
MD5 hash:
eaee57ce6eb8a32b1851a5eefc5df546
SHA1 hash:
f72ca563fdd6ed3893e77ca43a91658da7e268b5
Link:
https://www.unpac.me/results/da020e44-ddd3-4023-a635-666e3fa7ce7d/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b4a88d755d4a/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.34
Link:
https://yomi.yoroi.company/submissions/b4a88d755d4ac88a380582ed5331b90b9c84872e6b6d04f773ffc08b4dbcf7c2

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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

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/65252/

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