MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f25c5b3177941e7c277a8500d3f316c27f978af59c087f67b3ab3673452fde3e. 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 1

SHA256 hash: f25c5b3177941e7c277a8500d3f316c27f978af59c087f67b3ab3673452fde3e
SHA3-384 hash: 1f36029910e624dafb6c009efa4d624ed85a667894d4db364460932006d6d270230d546c40940aba48d342906aab8c1f
SHA1 hash: 8a7c67ac71a81ae7d5033c99e6745cdca3a39046
MD5 hash: 21590d13d4cdeab6944d98f9d0a3d41e
humanhash: finch-connecticut-bulldog-sweet
File name:21590d13d4cdeab6944d98f9d0a3d41e
Download: download sample
Signature Formbook
File size:867'840 bytes
First seen:2022-07-13 06:23:03 UTC
Last seen:2022-07-13 06:41:02 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:Quhm1geXRwrEy9WVuqcvCSoqNqpwLx1BUxlSxq+ELSofAh17jtGNy/7pKIojjm9e:sFir4xZRwLKz+ELSoo3XsNai
TLSH T1C305F126AF14CFAAD629477C48770B8427B452358202FFCE4FF054A93DA33526D4BEA5
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 18a219d4d4198a10 (20 x AgentTesla, 12 x Formbook, 10 x SnakeKeylogger)
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
260
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
payment.doc
Verdict:
Malicious activity
Analysis date:
2022-07-12 06:33:07 UTC
Tags:
exploit CVE-2017-11882 loader

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

Behaviour
Creating a window
Verdict:
Suspicious
Threat level:
  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
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
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)
Sample uses process hollowing technique
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-07-12 04:26:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Unpacked files
SH256 hash:
ea801ddd1ea57f52ae69533038861744365d8d9c05c3a9c1190dba32d07dc6b6
MD5 hash:
4d0e9bfe94004ceb16e9b63c7c03067d
SHA1 hash:
05e3fb4119f85cc6b6543d8624191a7000d856cd
SH256 hash:
f25c5b3177941e7c277a8500d3f316c27f978af59c087f67b3ab3673452fde3e
MD5 hash:
21590d13d4cdeab6944d98f9d0a3d41e
SHA1 hash:
8a7c67ac71a81ae7d5033c99e6745cdca3a39046
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.

Web download

Formbook

Executable exe f25c5b3177941e7c277a8500d3f316c27f978af59c087f67b3ab3673452fde3e

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2022-07-13 06:23:20 UTC

url : hxxp://85.202.169.21/rexzx.exe