MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc0b4a0d0cddb4abdc8288fbdd5331e8805779750648be80e17f0e9adbaec27c. 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: 13


Intelligence 13 IOCs YARA 11 File information Comments

SHA256 hash: fc0b4a0d0cddb4abdc8288fbdd5331e8805779750648be80e17f0e9adbaec27c
SHA3-384 hash: a339184725d3641267a5b50ff89a10a7393b81f51394b17775fb806c0c6759f54d3efcd5f2e23f749a96333ad0cf68bb
SHA1 hash: 1ee579811056a3ef9f6292a209d7d611ece5cdab
MD5 hash: dba9b6567908020c7b159cd9f1b3e0fe
humanhash: low-lion-papa-september
File name:file.exe
Download: download sample
Signature Formbook
File size:785'416 bytes
First seen:2024-04-30 05:33:24 UTC
Last seen:2024-04-30 06:37:28 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'633 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:CKlUt7hYB778QMY9fS96l3aAc7asVlVwUvpqfVBiqAQBOwh8Jh7D7JtjhxZq03Gs:Ot7hYByY9aohaJusXvpeNFB7c7DtttxP
TLSH T1CFF4018C3254B2DEC95BC872DEA84C61AA5074A7470BD243A45B12EDAE4EBD7CF140F3
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
File icon (PE):PE icon
dhash icon 4018f9e960e20464 (19 x AgentTesla, 6 x Formbook, 2 x PureLogsStealer)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
308
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
fc0b4a0d0cddb4abdc8288fbdd5331e8805779750648be80e17f0e9adbaec27c.exe
Verdict:
Malicious activity
Analysis date:
2024-04-30 05:46:51 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
overlay packed
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Antivirus / Scanner detection for submitted sample
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)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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 domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Snort IDS alert for network traffic
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
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1433835 Sample: file.exe Startdate: 30/04/2024 Architecture: WINDOWS Score: 100 28 www.quantumboulevard.xyz 2->28 30 www.klingerlumberltd.com 2->30 32 3 other IPs or domains 2->32 42 Snort IDS alert for network traffic 2->42 44 Multi AV Scanner detection for domain / URL 2->44 46 Malicious sample detected (through community Yara rule) 2->46 50 10 other signatures 2->50 10 file.exe 3 2->10         started        signatures3 48 Performs DNS queries to domains with low reputation 28->48 process4 signatures5 62 Detected unpacking (changes PE section rights) 10->62 64 Detected unpacking (overwrites its own PE header) 10->64 13 file.exe 10->13         started        process6 signatures7 66 Maps a DLL or memory area into another process 13->66 16 EmjEJlTyHjhBLmybjiVqOEhM.exe 13->16 injected process8 signatures9 40 Found direct / indirect Syscall (likely to bypass EDR) 16->40 19 unlodctr.exe 13 16->19         started        process10 signatures11 52 Tries to steal Mail credentials (via file / registry access) 19->52 54 Tries to harvest and steal browser information (history, passwords, etc) 19->54 56 Modifies the context of a thread in another process (thread injection) 19->56 58 2 other signatures 19->58 22 EmjEJlTyHjhBLmybjiVqOEhM.exe 19->22 injected 26 firefox.exe 19->26         started        process12 dnsIp13 34 www.gattosat.icu 109.123.121.243, 49715, 49716, 49717 UK2NET-ASGB United Kingdom 22->34 36 www.quantumboulevard.xyz 66.29.135.159, 49723, 80 ADVANTAGECOMUS United States 22->36 38 2 other IPs or domains 22->38 60 Found direct / indirect Syscall (likely to bypass EDR) 22->60 signatures14
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2024-04-29 01:40:38 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
d2757181ac55df4289773e66ad9fce1f9b9dcd15145567e2574c766907455edf
MD5 hash:
5622dec8af5afc60239d7bb984831477
SHA1 hash:
70532c8a7d9c926c7ac7e2153745613f273f8eee
SH256 hash:
bc8542b7bbbfdb4f7b37497593bbc39835e5fc12341b581c37377b8241d83f18
MD5 hash:
abab05ee1cf56e3127913e9b2eb91d38
SHA1 hash:
e1348c71b67779558f53ab5988af5440a3ec72bf
SH256 hash:
580ef9d00e320c821e654d883987185b0159ec5f967a72c708e39f96754a21b8
MD5 hash:
a4601fd39dd947a4d379c492364ef193
SHA1 hash:
edf9f917dd7bd42fe1cd3a92acf631266f5a5d15
SH256 hash:
4909093c1045073940daf73778f88ce3e5d4dcbc0d69e3498ad4672c2e699013
MD5 hash:
28b43a10958caef0465f7b93be0a0d77
SHA1 hash:
9c85c1cb7f6face0a6c8d0a2d2314a99092d6554
SH256 hash:
acfeba80cb0adac97bd7f7890c964a0fff19104eace51226389fd318cff65506
MD5 hash:
d78089bd74091aa66ccb84b683748e87
SHA1 hash:
3e54edc4876c974f836f9e7c1bd7bdbbeef07551
SH256 hash:
fc0b4a0d0cddb4abdc8288fbdd5331e8805779750648be80e17f0e9adbaec27c
MD5 hash:
dba9b6567908020c7b159cd9f1b3e0fe
SHA1 hash:
1ee579811056a3ef9f6292a209d7d611ece5cdab
Detections:
INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
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:maldoc_getEIP_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Author:Willi Ballenthin
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
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:PE_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

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

Comments