MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7d3b18c39d3639ad23c44c26f01902954b589f0e4657806f22a512246fa8ee56. 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 3 File information Comments

SHA256 hash: 7d3b18c39d3639ad23c44c26f01902954b589f0e4657806f22a512246fa8ee56
SHA3-384 hash: 4835fee393d6b20f2841660d4396d09a8dbb268b48a3c24b549ee423746778464ac33e100da007254c546cd4836e23d9
SHA1 hash: c0a12a78fee9b224317fe5df4d071c66aaae6233
MD5 hash: 5f65cd4aad961843d09261866223ed73
humanhash: ohio-whiskey-london-solar
File name:transfer_20231124.exe
Download: download sample
Signature Formbook
File size:569'856 bytes
First seen:2023-11-27 10:30:06 UTC
Last seen:2023-11-28 09:56:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:l172Cvzr7Nltyx9yDPTSaohH3KyO0R8Jf8K2q:Vby/mPTSfrO0Sl8
Threatray 3'843 similar samples on MalwareBazaar
TLSH T196C4234C953C5FB9CEEF87F110B1E72409E63FEA1212DA2CA587217B9557310CA81AB7
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) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 6000696971690068 (3 x AgentTesla, 3 x Formbook, 3 x SnakeKeylogger)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
306
Origin country :
NL NL
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Restart of the analyzed sample
Creating a file
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a system process
Unauthorized injection to a browser process
Gathering data
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.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
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)
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)
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
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1348429 Sample: transfer_20231124.exe Startdate: 27/11/2023 Architecture: WINDOWS Score: 100 34 www.punatraffic.com 2->34 36 www.perumahanmalangmedinacity.com 2->36 38 12 other IPs or domains 2->38 42 Snort IDS alert for network traffic 2->42 44 Found malware configuration 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 8 other signatures 2->48 11 transfer_20231124.exe 3 2->11         started        signatures3 process4 signatures5 56 Tries to detect virtualization through RDTSC time measurements 11->56 58 Injects a PE file into a foreign processes 11->58 14 transfer_20231124.exe 11->14         started        process6 signatures7 60 Modifies the context of a thread in another process (thread injection) 14->60 62 Maps a DLL or memory area into another process 14->62 64 Sample uses process hollowing technique 14->64 66 Queues an APC in another process (thread injection) 14->66 17 explorer.exe 37 1 14->17 injected process8 dnsIp9 28 wsall.luo56134871.site.wcdnga.com 157.185.163.158, 49717, 80 QUANTILNETWORKSUS United States 17->28 30 www.conectivaredes.com 64.90.53.49, 49723, 80 DREAMHOST-ASUS United States 17->30 32 4 other IPs or domains 17->32 40 System process connects to network (likely due to code injection or exploit) 17->40 21 svchost.exe 17->21         started        signatures10 process11 signatures12 50 Modifies the context of a thread in another process (thread injection) 21->50 52 Maps a DLL or memory area into another process 21->52 54 Tries to detect virtualization through RDTSC time measurements 21->54 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-11-27 10:31:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
11
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:ui23 rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
797e57bd74a68f7b4808a213f5c319ee4f4b023bc73088175d4393dfee9fe329
MD5 hash:
3c927935fbd608e7628cc2c5ad7d52fd
SHA1 hash:
ee0c880c0614ac960fd641f7d479233584aed1d8
SH256 hash:
b40c51212af363bb685b5297ed6bf9f2b327f0ee31987c9eb4eb74fe79d925c6
MD5 hash:
af9c4cbc5be56020a32b6ae6c7d535d4
SHA1 hash:
ecd022f7261025c01779f742832372729e7b2bbf
SH256 hash:
4aac5877a1778b6a54bf9113a06bc86a919d6bdafab57fbdebc704d89afdc878
MD5 hash:
f9e83703f6f65fe20d9ab3a1f54aac29
SHA1 hash:
c389354535e1e7c17ca51017410a1c458a3557e4
SH256 hash:
7d3b18c39d3639ad23c44c26f01902954b589f0e4657806f22a512246fa8ee56
MD5 hash:
5f65cd4aad961843d09261866223ed73
SHA1 hash:
c0a12a78fee9b224317fe5df4d071c66aaae6233
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: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.

Malspam

Formbook

Executable exe 7d3b18c39d3639ad23c44c26f01902954b589f0e4657806f22a512246fa8ee56

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments