MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f8f428981dcefad408ee7d4a0a855319cb36772b01476c7b385d372f8ac2ed16. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments

SHA256 hash: f8f428981dcefad408ee7d4a0a855319cb36772b01476c7b385d372f8ac2ed16
SHA3-384 hash: b5f0b118306a99459c93a7081ff5edd05a58b5a2434520ff1fb61ee8c68797918d78be3ce48fedc65b65ff85b0816cf0
SHA1 hash: 299f19485e6857633f1820d55a47d0ec90c87c42
MD5 hash: ef203ac4eea8a1d45b5982f0241e4858
humanhash: failed-berlin-virginia-solar
File name:SecuriteInfo.com.Trojan.MSIL.BluStealer.NX.MTB.13214.5756
Download: download sample
Signature Formbook
File size:1'612'288 bytes
First seen:2022-08-01 12:42:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'748 x AgentTesla, 19'643 x Formbook, 12'245 x SnakeKeylogger)
ssdeep 24576:tfh5ojR7U80/o8KBugotOAnhZUCamwrXl:Sj30w8KBugotOyO
TLSH T1BF755C00BBF8CA2BD2FF9376D07242521BBAF886B7D1F74B494152AE1C423145D562BB
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 f08f898c8e8a8fb0 (37 x SnakeKeylogger, 19 x AgentTesla, 17 x AveMariaRAT)
Reporter SecuriteInfoCom
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
304
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Result
Verdict:
UNKNOWN
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:
84 / 100
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Malicious sample detected (through community Yara rule)
Yara detected FormBook
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.BluStealer
Status:
Malicious
First seen:
2022-08-01 12:43:12 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 26 (73.08%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Downloads MZ/PE file
Unpacked files
SH256 hash:
f8f428981dcefad408ee7d4a0a855319cb36772b01476c7b385d372f8ac2ed16
MD5 hash:
ef203ac4eea8a1d45b5982f0241e4858
SHA1 hash:
299f19485e6857633f1820d55a47d0ec90c87c42
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:pdb_YARAify
Author:@wowabiy314
Description:PDB
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