MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f9c31e0238b8e6504435e2d5bce7da1896ffde15791d9189f933958ba690914d. 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 4 File information Comments

SHA256 hash: f9c31e0238b8e6504435e2d5bce7da1896ffde15791d9189f933958ba690914d
SHA3-384 hash: 64a39de3e95016f4d9871df1f6e5e7cc33ea459d8c3fb2863829c3277723f36c66cd24e3430685ad02620afade5f94fc
SHA1 hash: 8dc85f0e5fc954165029e5eb97750771533910ae
MD5 hash: 76b483ad7da87a865424a75ec768e221
humanhash: bacon-three-thirteen-emma
File name:Documento di bonifico bancario intesa Sanpaola EUR43750 20240223.exe
Download: download sample
Signature Formbook
File size:646'144 bytes
First seen:2024-02-26 14:54:48 UTC
Last seen:2024-02-26 16:21:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:UjnCirsCB7yJT1gtU8EJYQaa1bFtsEKKVBCY8gXnUUEPzBh3:UjnCYsCaq28W7T1bPsiBCYZk/lB
TLSH T19DD423544295E3A2D3AF073A14E2308657BEB5B6E872EFD48EDCB1ED1822F015D07993
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter malwarelabnet
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
292
Origin country :
CA CA
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Creating a process with a hidden 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
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm packed
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, 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
Adds a directory exclusion to Windows Defender
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspect Svchost Activity
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
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1398841 Sample: Documento di bonifico banca... Startdate: 26/02/2024 Architecture: WINDOWS Score: 100 32 www.taxibactrungnam.com 2->32 34 www.sunriseclohting.store 2->34 36 5 other IPs or domains 2->36 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 15 other signatures 2->50 11 Documento di bonifico bancario intesa Sanpaola EUR43750 20240223.exe 4 2->11         started        signatures3 process4 signatures5 60 Adds a directory exclusion to Windows Defender 11->60 62 Injects a PE file into a foreign processes 11->62 14 Documento di bonifico bancario intesa Sanpaola EUR43750 20240223.exe 11->14         started        17 powershell.exe 23 11->17         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 Queues an APC in another process (thread injection) 14->68 19 explorer.exe 37 1 14->19 injected 23 conhost.exe 17->23         started        process8 dnsIp9 38 shops.myshopify.com 23.227.38.74, 49740, 80 CLOUDFLARENETUS Canada 19->38 40 www.friskiwear.com 199.59.243.225, 49742, 80 BODIS-NJUS United States 19->40 42 www.aloyoga-uae.com 3.96.23.237, 49744, 80 AMAZON-02US United States 19->42 52 System process connects to network (likely due to code injection or exploit) 19->52 25 svchost.exe 19->25         started        signatures10 process11 signatures12 54 Modifies the context of a thread in another process (thread injection) 25->54 56 Maps a DLL or memory area into another process 25->56 58 Tries to detect virtualization through RDTSC time measurements 25->58 28 cmd.exe 1 25->28         started        process13 process14 30 conhost.exe 28->30         started       
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2024-02-23 12:53:34 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
25 of 38 (65.79%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:pz08 rat spyware stealer trojan
Behaviour
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
24e196036554f430cfb19fb9343e4d2ee0f51129c1b270974ae27bd6581cf33b
MD5 hash:
261de885397be969e26e090bdc497544
SHA1 hash:
f10620c94b6d588a0a142904bc29dd32aa36ff93
Detections:
FormBook win_formbook_w0 win_formbook_auto win_formbook_g0 Formbook
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
SH256 hash:
42e5bbee4b498550f505c1232326adbf9d5d23c7e90174eb142b4963b879fe7b
MD5 hash:
100a8095e042378d2c227eb0ff37b6d4
SHA1 hash:
32c4a6457d7c01e9e135c3750d571114bc0ef3a0
SH256 hash:
6a7e3b6f36ee3a893bc6cd5f7beec7109ea374c484df2de517a334530eeea1dc
MD5 hash:
4cdc1c9c8ff97d4fe4c0aa1da00cd509
SHA1 hash:
27a54b6c78c083280621fa0a370d318fe29245bd
SH256 hash:
9eca61a950cf549ef70afd089d5bf99236ab9be16bb9a43b46b384a3e960e083
MD5 hash:
6f59c4547a6a7078dba2d920f92c2636
SHA1 hash:
192a8be81d7260a109a85f6c2def9b9448b683c2
SH256 hash:
f9c31e0238b8e6504435e2d5bce7da1896ffde15791d9189f933958ba690914d
MD5 hash:
76b483ad7da87a865424a75ec768e221
SHA1 hash:
8dc85f0e5fc954165029e5eb97750771533910ae
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:NET
Author:malware-lu
Rule name:pe_imphash
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.

Comments