MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652. 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: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652
SHA3-384 hash: 89805b0fe86c6aad2c8536dd56291708c097a20b310cd0918ebdfc0910385553972e33ac96ccbb2123071fdeef493060
SHA1 hash: b7c105bd03ac5b67a12fd3a00ba59bd2ec0d5e96
MD5 hash: 92205997aa6ab592fdae1c079f1f671b
humanhash: fish-carpet-potato-delta
File name:e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652
Download: download sample
Signature Formbook
Create hunting rule
File size:1'095'168 bytes
First seen:2026-08-10 14:02:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (49'190 x AgentTesla, 20'337 x Formbook, 12'364 x SnakeKeylogger)
ssdeep 24576:BKlCvgrfhs41tkpNvt7Vill7IL1ckMtJEhaUtF/N0RY:BKlCvgrfhs4vkpVtSC6kMtWhakRCRY
TLSH T1003512546D9DC811C4D3AB700A70E77957A8ADC8E924CF175EFCBCE77C66A066820B83
TrID 70.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
6.2% (.EXE) Win64 Executable (generic) (6522/11/2)
4.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon 3096968e8eb2b230 (5 x Formbook, 2 x RemcosRAT, 2 x AsyncRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
55
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
RoboSki
Details
Link:
https://research.acce.ciphertechsolutions.com/results/d5ea1776-d3ab-4e21-aef4-7fc5782ab343/
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79682/
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:
agenttesla krypt packed
Link:
https://www.filescan.io/uploads/6a79da31c28463a7097ad349/reports/a5b122b1-01fb-47ef-8287-bda1d2c523e5/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-07-07T01:13:00Z UTC
Last seen:
2026-08-10T08:31:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652/results?tab=lookup
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/d39a0c2d-a676-4f0f-b684-4efddada299e
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2026-07-07 04:24:49 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
24 of 35 (68.57%)
Threat level:
  2/5
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery rat spyware stealer trojan
Link:
https://tria.ge/reports/260810-rcplesaq3t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Family: Formbook
Formbook payload
Unpacked files
SH256 hash:
e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652
MD5 hash:
92205997aa6ab592fdae1c079f1f671b
SHA1 hash:
b7c105bd03ac5b67a12fd3a00ba59bd2ec0d5e96
Link:
https://www.unpac.me/results/9d5e04a8-4deb-4ebd-a73e-f1ba2f95eebf/
SH256 hash:
c46830057ecdcb72d20315103b74bcdc8bf7aca93c5c0c131754e1511a8a30eb
MD5 hash:
f36ffa8325c601d6d060a70fab45ec8f
SHA1 hash:
9377d33664ad566e1fecd53bd6006c68b7689554
Link:
https://www.unpac.me/results/9d5e04a8-4deb-4ebd-a73e-f1ba2f95eebf/
SH256 hash:
2ff83a9ce65ab1ccd86b1066aee44a24eff1d1475529cc445a1d7685e3e22fa6
MD5 hash:
bbabcd5e10b93ecac7c7e9e06f4cb8f5
SHA1 hash:
ec4ad602855ab44c271092632a2c4cf614fbe8ae
Link:
https://www.unpac.me/results/9d5e04a8-4deb-4ebd-a73e-f1ba2f95eebf/
SH256 hash:
f378892bd008c57147962c79f2bc52b1dc227cfa5b483642c6fe30424e50ceeb
MD5 hash:
7e772e95d530a86a6995b40c6dade77d
SHA1 hash:
a49d9181e7392801a062fe8c5aea27256731ad26
Link:
https://www.unpac.me/results/9d5e04a8-4deb-4ebd-a73e-f1ba2f95eebf/
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/e3b0cd21746e06e579260f3ef8f3aee90dd4cdce6fff976f7848ecd84280a652

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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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/79682/

Comments