MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 59fe7f5e271c05fc8db382a3cbd11834eaf4ddcdf9c16349f18db11df84d59d5. 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 7 File information Comments

SHA256 hash: 59fe7f5e271c05fc8db382a3cbd11834eaf4ddcdf9c16349f18db11df84d59d5
SHA3-384 hash: 5b04bcc3dd4ad8b38217129db269c20bab28a7bb8bce0e5f9a49b35aa207a0a78ba868e89c3b7a0343364cbfad99c4db
SHA1 hash: 15514e5750a0e2b303c8319da6c95d43c2973097
MD5 hash: caf4420a85ac94a5e849b729c8cabbe8
humanhash: fillet-cold-burger-utah
File name:WvwNJkZ8jcQuUnb.exe
Download: download sample
Signature Formbook
File size:665'608 bytes
First seen:2024-05-13 09:29:16 UTC
Last seen:2024-05-13 13:27:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:++7TeH81jJUVzVDbEGDvJsmBOl/35XVg63d7pi/Pq3dag8JyGHwfjIyLxT+kR:Ba8MVBUGTJsBlvPgx/2yJrHjyLxTl
Threatray 2'768 similar samples on MalwareBazaar
TLSH T139E412052BFCBF10EBBE6BF461B4411627B6A2636875D33C1DC1C0EB5EA2B9019B5607
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
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)
Reporter likeastar20
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
331
Origin country :
RO RO
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
59fe7f5e271c05fc8db382a3cbd11834eaf4ddcdf9c16349f18db11df84d59d5.exe
Verdict:
Malicious activity
Analysis date:
2024-05-13 09:31:43 UTC
Tags:
n/a

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

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for synchronization primitives
Creating a window
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook, PureLog Stealer
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Reads the DNS cache
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Uses ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1440424 Sample: WvwNJkZ8jcQuUnb.exe Startdate: 13/05/2024 Architecture: WINDOWS Score: 100 34 www.xn--y3rqw57i.com 2->34 36 www.tires-book-robust.bond 2->36 38 16 other IPs or domains 2->38 44 Snort IDS alert for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 7 other signatures 2->50 11 WvwNJkZ8jcQuUnb.exe 3 2->11         started        signatures3 process4 signatures5 60 Tries to detect virtualization through RDTSC time measurements 11->60 62 Injects a PE file into a foreign processes 11->62 14 WvwNJkZ8jcQuUnb.exe 11->14         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 Queues an APC in another process (thread injection) 14->70 17 explorer.exe 85 1 14->17 injected process8 dnsIp9 28 www.tires-book-robust.bond 104.247.82.91, 49723, 80 TEAMINTERNET-CA-ASCA Canada 17->28 30 hasenkamp.dev 81.169.145.95, 49722, 80 STRATOSTRATOAGDE Germany 17->30 32 5 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 42 Uses ipconfig to lookup or modify the Windows network settings 17->42 21 ipconfig.exe 17->21         started        signatures10 process11 signatures12 52 Modifies the context of a thread in another process (thread injection) 21->52 54 Reads the DNS cache 21->54 56 Maps a DLL or memory area into another process 21->56 58 Tries to detect virtualization through RDTSC time measurements 21->58 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.FormBook
Status:
Malicious
First seen:
2024-05-13 00:39:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:cn26 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
1ae39311951e0bda88959ac6a2418ec6c6b86c07db3459a03562fb325cf7511f
MD5 hash:
39dadaa6ae7d97c25b8377e9d2d01857
SHA1 hash:
8a13fcb53c154d8f819546ef9cffe5ae3453d188
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 Formbook
SH256 hash:
00ddeea4c67f40ab10f2ea6cff02e13c029b939103b95acbaf114e0d3d3c6f81
MD5 hash:
078be40726985f9d3c7e3cc974f6c920
SHA1 hash:
dd30bdb39b264da0bc9e5afdeb8f65b0229b8cf0
SH256 hash:
cf7a42004c0db4213b95d43f8e85eef49b0ecfa81d558de94bee2be2e080eb16
MD5 hash:
b86d15cad11ce0c71f1dabf48d6278b5
SHA1 hash:
ccc69a2fc7ef38ea8288541ac4014a978418958b
SH256 hash:
fd3f1f3f0c984361bb23b2f6ba22a4bbd636095bf6e9d0c31d77b5ccfceed307
MD5 hash:
1e504d0d93436a776666cc8236d65844
SHA1 hash:
834490f9be03a0814c6460f5aae33af12e83b8f5
SH256 hash:
7e843a764288885629db944e03560845bd6aae31be1e1ce1d92799b4dffb5f7a
MD5 hash:
2c3f7108d4525ac2856cb70871f15c32
SHA1 hash:
5d04332dac4d5324d89ebca26a2a609b8fd9895e
SH256 hash:
59fe7f5e271c05fc8db382a3cbd11834eaf4ddcdf9c16349f18db11df84d59d5
MD5 hash:
caf4420a85ac94a5e849b729c8cabbe8
SHA1 hash:
15514e5750a0e2b303c8319da6c95d43c2973097
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:AgentTesla_DIFF_Common_Strings_01
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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_Potentially_Signed_Digital_Certificate
Author:albertzsigovits
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