MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e1ac8636bad99361fb9c659acdbfcf925147d60655e0c7ede10c5d6f6f944678. 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: 16


Intelligence 16 IOCs YARA 9 File information Comments

SHA256 hash: e1ac8636bad99361fb9c659acdbfcf925147d60655e0c7ede10c5d6f6f944678
SHA3-384 hash: 7de6928dbc4ab99fcccf6bff7342b6a2b1d22a18e7348b6ac33243fc470d61169c5072557b4b6c41579a83367fffed04
SHA1 hash: b3aee14dd4f0e680cac74309ccdd8faa63c17e95
MD5 hash: 353ca51dac0dfc8e05877f1ba27e0b5a
humanhash: juliet-quiet-happy-bravo
File name:e1ac8636bad99361fb9c659acdbfcf925147d60655e0c7ede10c5d6f6f944678
Download: download sample
Signature Formbook
File size:896'008 bytes
First seen:2025-03-10 12:11:21 UTC
Last seen:2025-03-10 13:10:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'750 x AgentTesla, 19'654 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:Qx77W7XeZuJAfKaJQ2/wUbt5158aNpgTn/kUTmCCFx16VCYwDhqQ95vomDuWykR:67S2RJjbtDAT/lif16vQ95vTHB
Threatray 155 similar samples on MalwareBazaar
TLSH T1751501681618C913C28E4774D9B1E1B54BFECDC6B682F3869AD9AEEF3495F200D411E3
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10522/11/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Magika pebin
dhash icon b0b268e8ccd486a2 (11 x Formbook, 5 x SnakeKeylogger, 3 x MassLogger)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
329
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
e1ac8636bad99361fb9c659acdbfcf925147d60655e0c7ede10c5d6f6f944678
Verdict:
Malicious activity
Analysis date:
2025-03-10 18:11:05 UTC
Tags:
formbook xloader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
injection virus msil
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Connection attempt
Searching for synchronization primitives
Creating a window
Launching a service
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
infostealer invalid-signature obfuscated packed packed packer_detected signed vbnet
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Suricata IDS alerts for network traffic
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1634560 Sample: hh01FRs81x.exe Startdate: 11/03/2025 Architecture: WINDOWS Score: 100 33 www.chivor.xyz 2->33 35 www.bitcoinescort.xyz 2->35 37 16 other IPs or domains 2->37 45 Suricata IDS alerts for network traffic 2->45 47 Antivirus detection for URL or domain 2->47 49 Multi AV Scanner detection for submitted file 2->49 53 4 other signatures 2->53 10 hh01FRs81x.exe 11 3 2->10         started        signatures3 51 Performs DNS queries to domains with low reputation 35->51 process4 file5 31 C:\Users\user\AppData\...\hh01FRs81x.exe.log, ASCII 10->31 dropped 67 Injects a PE file into a foreign processes 10->67 14 hh01FRs81x.exe 10->14         started        17 hh01FRs81x.exe 10->17         started        signatures6 process7 signatures8 69 Maps a DLL or memory area into another process 14->69 19 Gm9uUaV91ycxNY3GPL6q.exe 14->19 injected process9 signatures10 55 Found direct / indirect Syscall (likely to bypass EDR) 19->55 22 rekeywiz.exe 13 19->22         started        process11 signatures12 57 Tries to steal Mail credentials (via file / registry access) 22->57 59 Tries to harvest and steal browser information (history, passwords, etc) 22->59 61 Modifies the context of a thread in another process (thread injection) 22->61 63 3 other signatures 22->63 25 Gm9uUaV91ycxNY3GPL6q.exe 22->25 injected 29 firefox.exe 22->29         started        process13 dnsIp14 39 www.gariano.info 81.88.63.46, 49718, 49719, 49720 REGISTER-ASIT Italy 25->39 41 trustai.chat 84.32.84.32, 49746, 49747, 49748 NTT-LT-ASLT Lithuania 25->41 43 11 other IPs or domains 25->43 65 Found direct / indirect Syscall (likely to bypass EDR) 25->65 signatures15
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2025-02-26 18:31:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
discovery
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
e1ac8636bad99361fb9c659acdbfcf925147d60655e0c7ede10c5d6f6f944678
MD5 hash:
353ca51dac0dfc8e05877f1ba27e0b5a
SHA1 hash:
b3aee14dd4f0e680cac74309ccdd8faa63c17e95
SH256 hash:
dc7d4ce9e42acc1000dab5e3ac6c229ce86d23afbf1731401b12a1bb17f205e6
MD5 hash:
f90c2a911bd2b6902e999b9c0c641856
SHA1 hash:
22ef467a4e8446b55e27e1a9a4474ae584b48c82
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24 SUSP_OBF_NET_Reactor_Indicators_Jan24
SH256 hash:
c344b85c368b4d5357411215d9f3b9e18c33435da79cefdf89ef7bfb03b19b48
MD5 hash:
b76f33e3393a5f7ff78239a68b65b6d6
SHA1 hash:
9a1bcd262404d367f1ea1197a46a642506e3203b
SH256 hash:
34520c12b67bfebac45218b54bf595eb9dc2965576d4076641c873678a2632ce
MD5 hash:
d5cd348ae25981c32852715563a92766
SHA1 hash:
de39c106b8e96ef792832a80465289806d86a75b
SH256 hash:
43294a5cf7154d4cdd07fba9fa75da47e1b5436239f302ab1ac9b8fb653a0335
MD5 hash:
077838ed7e8464dd32a40829b0adacdf
SHA1 hash:
136f77add46f6e9567c79905a0c88b8b3c802017
Please note that we are no longer able to provide a coverage score for Virus Total.

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:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:NET
Author:malware-lu
Rule name:PE_Digital_Certificate
Author:albertzsigovits
Rule name:pe_imphash
Rule name:pe_no_import_table
Description:Detect pe file that no import table
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
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.

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