MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce. 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: 12


Intelligence 12 IOCs YARA 6 File information Comments
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SHA256 hash: a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce
SHA3-384 hash: b4ed392a87782d3d8b7c729d0f8bd5cba8f892cfc0fa05e2862a09590c5ff6c8edd1a47234fc52938a953c8f2b81dca0
SHA1 hash: 382342b41b5f55c4485286bc9af35c30a6f23d2b
MD5 hash: e30798ca2d6609a98ecb3213ac86c734
humanhash: spring-bravo-sodium-virginia
File name:SecuriteInfo.com.Win32.MalwareX-gen.12268.13247
Download: download sample
Signature Formbook
Create hunting rule
File size:890'368 bytes
First seen:2025-02-11 05:21:31 UTC
Last seen:2025-02-11 08:39:04 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'663 x AgentTesla, 19'478 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:moaovT2lPK7JnaJhM8Gfjz++bfdlU5DB2VMva2TCE0Msdqugk7B4KtWPPMUXPn/S:32BK1ayjiIHcB2qa2TCYlkO73//T
TLSH T12315BEDC3610739FCC17C535CA68ECB4A25438BAA30B759395D7279BB94C593CF08AA2
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10522/11/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 44d48cc484ccc4a4 (11 x Formbook, 7 x MassLogger, 3 x SnakeKeylogger)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
3
# of downloads :
426
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
SecuriteInfo.com.Win32.MalwareX-gen.12268.13247
Verdict:
No threats detected
Analysis date:
2025-02-11 05:21:43 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/4b7555b4-4d12-4a28-9cca-24e9cfeaba64

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.MalwareX-gen.12268.13247.UNOFFICIAL
Create hunting rule

Gathering data
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Launching a process
Creating a file
Forced shutdown of a system process
Unauthorized injection to a system process
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/2827c307-b2ca-4062-8101-9fdb84d2079d
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1611731
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found direct / indirect Syscall (likely to bypass EDR)
Joe Sandbox ML detected suspicious sample
Machine Learning detection for 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)
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)
Windows Update Standalone Installer command line found (may be used to bypass UAC)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1611731 Sample: SecuriteInfo.com.Win32.Malw... Startdate: 11/02/2025 Architecture: WINDOWS Score: 100 35 www.themutznuts.xyz 2->35 37 www.hugeblockchain.xyz 2->37 39 16 other IPs or domains 2->39 47 Antivirus detection for URL or domain 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 55 4 other signatures 2->55 10 SecuriteInfo.com.Win32.MalwareX-gen.12268.13247.exe 3 2->10         started        signatures3 53 Performs DNS queries to domains with low reputation 37->53 process4 file5 33 SecuriteInfo.com.W...12268.13247.exe.log, ASCII 10->33 dropped 69 Detected unpacking (changes PE section rights) 10->69 71 Detected unpacking (overwrites its own PE header) 10->71 14 RegSvcs.exe 10->14         started        17 RegSvcs.exe 10->17         started        signatures6 process7 signatures8 75 Maps a DLL or memory area into another process 14->75 19 cCjXKPtFcPp.exe 14->19 injected process9 signatures10 57 Windows Update Standalone Installer command line found (may be used to bypass UAC) 19->57 59 Found direct / indirect Syscall (likely to bypass EDR) 19->59 22 SearchIndexer.exe 13 19->22         started        25 wusa.exe 19->25         started        process11 signatures12 61 Tries to steal Mail credentials (via file / registry access) 22->61 63 Tries to harvest and steal browser information (history, passwords, etc) 22->63 65 Modifies the context of a thread in another process (thread injection) 22->65 67 3 other signatures 22->67 27 cCjXKPtFcPp.exe 22->27 injected 31 firefox.exe 22->31         started        process13 dnsIp14 41 themutznuts.xyz 84.32.84.32, 50002, 50003, 50004 NTT-LT-ASLT Lithuania 27->41 43 031235066.xyz 144.76.229.203, 49998, 49999, 50000 HETZNER-ASDE Germany 27->43 45 7 other IPs or domains 27->45 73 Found direct / indirect Syscall (likely to bypass EDR) 27->73 signatures15
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce/
Threat name:
ByteCode-MSIL.Trojan.Heracles
Create hunting rule
Status:
Malicious
First seen:
2025-02-11 03:03:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
14
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uss6vjsah6ox2wrvieycvfxjkff4eqciq3gp3646ultofduiadha._file
Verdict:
malicious
Label(s):
formbook
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unknown_loader_037
Create hunting rule
Similar samples:
error
Formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery
Link:
https://tria.ge/reports/250211-f2c35sxqhz/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
System Network Configuration Discovery: Internet Connection Discovery
Suspicious use of SetThreadContext
Downloads MZ/PE file
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4aa93920-fbc7-4972-95d4-c950683690a5
Unpacked files
SH256 hash:
a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce
MD5 hash:
e30798ca2d6609a98ecb3213ac86c734
SHA1 hash:
382342b41b5f55c4485286bc9af35c30a6f23d2b
Link:
https://www.unpac.me/results/2916f52e-8062-494c-9082-6814d1cabafe/
SH256 hash:
2a941ac734de1cd708077e97c1c69caf8328cfd6de5f3eb445e9a7264d597d9f
MD5 hash:
a0dc961cefe36f7f2f4197640034176c
SHA1 hash:
04d4eec27a534bd8be910ef06dd79d6eb08030ac
Detections:
SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24
Create hunting rule
SUSP_OBF_NET_Reactor_Indicators_Jan24
Create hunting rule
Link:
https://www.unpac.me/results/2916f52e-8062-494c-9082-6814d1cabafe/
SH256 hash:
37aa7ace50ecbbc40a962087fc75df10c352019e64d8c49ddf68295a1a319637
MD5 hash:
68bf997c0aad823cc1642bd9b80d94d7
SHA1 hash:
7c31c43094e8605a7d9af0feec3a419cd9cee2be
Link:
https://www.unpac.me/results/2916f52e-8062-494c-9082-6814d1cabafe/
SH256 hash:
12772b70f788052d0ed5ec565e8c429904f19c5f2e949bf2607ed99f7a8e0ee3
MD5 hash:
aa367f65489f533fbd13af26efd0ad9c
SHA1 hash:
cb74d4a31b0f68df205d188f3f4194bdb7833888
Link:
https://www.unpac.me/results/2916f52e-8062-494c-9082-6814d1cabafe/
SH256 hash:
bf12824d5083934206c88b0fca9497442888e0210df91338a0a04477dea4cd85
MD5 hash:
f33a0d11c132afb3bb4c1d3dd9be47fc
SHA1 hash:
56f171b4c730594f76029078ac9ae55bf8378381
Link:
https://www.unpac.me/results/2916f52e-8062-494c-9082-6814d1cabafe/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a4a5eaa6403f/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/a4a5eaa6403f9d7d5a3541302a96e9514bc2404886ccfdfb9ea2e6e28e8800ce

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:pe_imphash
Create hunting rule
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
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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.

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 (HIGH_ENTROPY_VA)high

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