MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067. 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 14 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067
SHA3-384 hash: 30b0b1542939f53ea7286afd9f84db5d8a103808b1b10f66e79d28561dd79985ce5acfef3ab054048d035d3c408a5c35
SHA1 hash: 476457c5fd2158ee115d784bcd832bde960901e1
MD5 hash: cc7c147c91c8238580b23baa0c3139ca
humanhash: two-mars-lemon-lima
File name:8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067
Download: download sample
Signature Formbook
Create hunting rule
File size:3'416'064 bytes
First seen:2025-07-07 15:03:22 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 49152:UOcSDbYm45//1yfY1QIAU/EZuG3S5tAO0+r42ddM72rKl3GQHS5gWTX1Pw35IuZX:dbY51yfY1AKSSsl+U2A72+9OmW5u5I+
TLSH T1E0F5237B6BB89522C2FA25F8F07155240BB4D4427743CF4FAB8495EA1847B64CE02BB7
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 :
24
Origin country :
HU HU
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/13183/
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=686be218900df8e7f86850cb
Tags:
virus micro msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067
Gathering data
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067
Verdict:
inconclusive
YARA:
10 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.03 Win 32 Exe x86
Link:
https://app.malva.re/file/cc7c147c91c8238580b23baa0c3139ca
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2025-06-25 04:23:14 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
30 of 38 (78.95%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=r7n6h222vg4phr7e72olz24ccat6rao7glqrslc3mjuv4j5xqbtq._file
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Link:
https://tria.ge/reports/250707-se8bzstmt5/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/d4e8d661-e4a2-4502-9bb2-eb8ebb24760f
Unpacked files
SH256 hash:
8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067
MD5 hash:
cc7c147c91c8238580b23baa0c3139ca
SHA1 hash:
476457c5fd2158ee115d784bcd832bde960901e1
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
SH256 hash:
3e364fbea9dec2545eec5b8c2a4bb8d6cfff8ec802037e66f20e63b262e3c34b
MD5 hash:
44e56e48e6cc042449d3b995a2f61e21
SHA1 hash:
0022efd84e5159aa7a8ac7c038e57a22b161374f
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
SH256 hash:
5bedae5eb1dc4ac23ff35595338ee42c95eb6382c398c54f6bdcb206eaf8f299
MD5 hash:
a8c15adb0de00a26fecd24c186090d77
SHA1 hash:
087f40e24c4cc48682e954d891ed459aaab17bc7
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
SH256 hash:
ea1066668070e3345524be081ef0c9f4a3307d7adb8fe636a5c539044d02c50b
MD5 hash:
793430719f32884772942288fe5dabf7
SHA1 hash:
1945a1080069e1f261bf29e9331fd10a8b768992
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
SH256 hash:
80aff8b1e65ffd06e0607df98fb9cbc48adf0ae70a62829c7b50907d9d70f98a
MD5 hash:
802c88a1773e28c2175a0d2a02ef4c0d
SHA1 hash:
b82a847ea42d97ac466bbebc24a209da2365c492
Link:
https://www.unpac.me/results/4b38f0ff-d6c6-4000-96f1-fe2344a73a42/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/8fdbe3eb5aa9/report/overview.html
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/8fdbe3eb5aa9b8f3c7e4fe9cbceb821027e881df32e1192c5b62695e27b78067

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:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:Formbook
Create hunting rule
Author:kevoreilly
Description:Formbook Payload
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
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:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
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/13183/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (GUARD_CF)high

Comments