MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a30502cad1cb62fe2961ca0d91d5bac2c35a0b942fa3094142068c78e307291b. 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 2 File information Comments

SHA256 hash: a30502cad1cb62fe2961ca0d91d5bac2c35a0b942fa3094142068c78e307291b
SHA3-384 hash: 85b6442e64d393b38bc3604f8cdd736ec611f5e6e94151db19d822a80245aab67b9b122848d3a9b9c6b344d41527daf2
SHA1 hash: 616bc6cb321b9d2f7ca9e67f107f7025f894467f
MD5 hash: 9ba749e5eef426ce3fe3a86dfdf1e871
humanhash: uranus-princess-seven-iowa
File name:documents.exe
Download: download sample
Signature Formbook
File size:594'432 bytes
First seen:2022-08-18 20:35:42 UTC
Last seen:2022-09-02 01:02:12 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:lW11R/5Pu+/SsGtU3DDNJOlMMHIklbOWZcVde59QcgIrsk:l+P+szXfOWEBCWZcVwfQdes
Threatray 14'261 similar samples on MalwareBazaar
TLSH T1EBC41272337BDD33D1286A7A85EE08089379AB439267DB4F3DC51AD04A66FC90D54B43
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
405
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
documents.exe
Verdict:
Malicious activity
Analysis date:
2022-08-18 20:36:57 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
Launching a process
Creating a process with a hidden window
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
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
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in 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 dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 686561 Sample: documents.exe Startdate: 18/08/2022 Architecture: WINDOWS Score: 100 35 Malicious sample detected (through community Yara rule) 2->35 37 Antivirus detection for URL or domain 2->37 39 Multi AV Scanner detection for dropped file 2->39 41 9 other signatures 2->41 8 documents.exe 7 2->8         started        process3 file4 27 C:\Users\user\AppData\...\huZqGkbckIgT.exe, PE32 8->27 dropped 29 C:\Users\...\huZqGkbckIgT.exe:Zone.Identifier, ASCII 8->29 dropped 31 C:\Users\user\AppData\Local\...\tmp8081.tmp, XML 8->31 dropped 33 C:\Users\user\AppData\...\documents.exe.log, ASCII 8->33 dropped 43 Uses schtasks.exe or at.exe to add and modify task schedules 8->43 45 Writes to foreign memory regions 8->45 47 Allocates memory in foreign processes 8->47 49 2 other signatures 8->49 12 RegSvcs.exe 8->12         started        15 powershell.exe 21 8->15         started        17 schtasks.exe 1 8->17         started        signatures5 process6 signatures7 51 Modifies the context of a thread in another process (thread injection) 12->51 53 Maps a DLL or memory area into another process 12->53 55 Sample uses process hollowing technique 12->55 57 Queues an APC in another process (thread injection) 12->57 19 explorer.exe 12->19 injected 21 conhost.exe 15->21         started        23 conhost.exe 17->23         started        process8 process9 25 cscript.exe 19->25         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-17 21:58:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
12
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Unpacked files
SH256 hash:
551ef0181260a5ab5728a618c2e86443753aaeb425e6c3b1346dfb0a661c73af
MD5 hash:
3c7205139e6aabd7de040b15021c24ed
SHA1 hash:
e4c66e4ca1bb3b5488d7c4ba7fddc8cac118955f
SH256 hash:
43950fa88a594e2dfe864c2e5ce18f6c8aebed5231cfa7ac9c665b2617adb825
MD5 hash:
f93cc6c970d8389e1cdfb9e1362fb80e
SHA1 hash:
c8f46953233c0c4924f371ff7fdf68e54cd36f0c
SH256 hash:
d9cdbeb544166f51945117027e86d6c6c4ff96c6c36d95d9a5ffd520379eae3c
MD5 hash:
5f064e4bef028e68400e6f7001536e2f
SHA1 hash:
c60dfe34197833c2a60364ea838df8006a2fbc85
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
a30502cad1cb62fe2961ca0d91d5bac2c35a0b942fa3094142068c78e307291b
MD5 hash:
9ba749e5eef426ce3fe3a86dfdf1e871
SHA1 hash:
616bc6cb321b9d2f7ca9e67f107f7025f894467f
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: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 a30502cad1cb62fe2961ca0d91d5bac2c35a0b942fa3094142068c78e307291b

(this sample)

  
Dropped by
Formbook
  
Delivery method
Distributed via e-mail attachment

Comments