MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 61fb45d1e787dec744a90287284a6d4bd57cca555acda0dbc8e4249f7d3e50a5. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash: 61fb45d1e787dec744a90287284a6d4bd57cca555acda0dbc8e4249f7d3e50a5
SHA3-384 hash: 0e344f61e8fc16ed36cea9576a1bff03b5e98bfcbcc3acfa250928c438bafd2c3fb54c8334e26ff44284cdfa1a247d5c
SHA1 hash: e4220a9b7c8a4c64f40535f329ec4236f8853f93
MD5 hash: f1eca00ab99eb2733f0aa5c8fcdfdebd
humanhash: lemon-connecticut-ten-carolina
File name:f1eca00ab99eb2733f0aa5c8fcdfdebd
Download: download sample
Signature Formbook
File size:185'856 bytes
First seen:2020-10-25 08:02:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
ssdeep 3072:kaQ+OTXUITwOslwBcI8wa4IIg8Cnu7zBiX0JlTuUbbbHxLq0a:KR8tl8V/a4IV8T7z/TlbH0
Threatray 2'686 similar samples on MalwareBazaar
TLSH C404AF32D641C431E2B251B5B77C1B3B883E0D353695A4EAE3E619E06EA05E5F13A31F
Reporter seifreed
Tags:FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
63
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Sending a UDP request
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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 (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-10-06 13:35:23 UTC
AV detection:
28 of 29 (96.55%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  10/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Unpacked files
SH256 hash:
61fb45d1e787dec744a90287284a6d4bd57cca555acda0dbc8e4249f7d3e50a5
MD5 hash:
f1eca00ab99eb2733f0aa5c8fcdfdebd
SHA1 hash:
e4220a9b7c8a4c64f40535f329ec4236f8853f93
Detections:
win_formbook_g0 win_formbook_auto
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:Formbook
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

  
Delivery method
Other

Comments