MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a903b0aa18fd8d97acf3400ce77af32125d36f97423bdf2f6e5861ec120c9a46. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments

SHA256 hash: a903b0aa18fd8d97acf3400ce77af32125d36f97423bdf2f6e5861ec120c9a46
SHA3-384 hash: f6127fc8937b11548d348f36eaf7f2ed455acc44fa08612e17203b73e23839048409e0425eac42e18793f66e97964f29
SHA1 hash: b22f41db50fb00258aefa6a4ef0dda3562066189
MD5 hash: 5e92a482e34a17008e6c67d65cdd7cf5
humanhash: freddie-helium-may-lima
File name:ORDER_540.exe
Download: download sample
Signature Formbook
File size:948'736 bytes
First seen:2022-08-29 10:59:40 UTC
Last seen:2022-09-05 11:41:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:qbU4QwDT/0shbH1gT/0shbGywqMWywpjGqHmxn:qbUXY5osyNywh
TLSH T18715D045F691C952C92A6733C4F2D9300731BD5AE522CA4F35C93EAB39333EB9805A97
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)
File icon (PE):PE icon
dhash icon d4c4c4d8ccd4f0c4 (63 x Formbook, 23 x AgentTesla, 8 x RemcosRAT)
Reporter adrian__luca
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
2
# of downloads :
326
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
ID:
1
File name:
ORDER_540.exe
Verdict:
Malicious activity
Analysis date:
2022-08-29 11:03:30 UTC
Tags:
formbook trojan stealer

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
Sending a custom TCP request
DNS request
Launching a process
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
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
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-26 01:07:28 UTC
File Type:
PE (.Net Exe)
Extracted files:
50
AV detection:
25 of 39 (64.10%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook campaign:dn07 rat spyware stealer trojan
Behaviour
Gathers network information
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Formbook payload
Formbook
Unpacked files
SH256 hash:
a0ee965784ef486f590b37acec04e727d8d355a4399367786c9928ae8f4d494a
MD5 hash:
76bfd968d8b77916e962feb67da5daa1
SHA1 hash:
5a3894f879a6bf432e0916986bd33b0b77234f5a
Detections:
win_formbook_g0 win_formbook_auto FormBook
SH256 hash:
ceda93fdfce3ad8e4f800d4f2d940d793b68b4b0b254b652bf42e13dbd189ba7
MD5 hash:
786afe844ec1723b635cace747b60efd
SHA1 hash:
fa647a584a7fcad392147a182e3a2435b3ad5bb9
SH256 hash:
90f2071eadbe22d1c26537dc3e36c152e7a84726141cc25ddcd0ca0669f3a487
MD5 hash:
b0769b77c6e0249ee0fdf9e3f26c4255
SHA1 hash:
af6fce2a7e14961d64a3085876706d61bad26cb0
SH256 hash:
329595240f71726127de2bb18f039c6e4d8744d2886ca2781073462bdd2ef2de
MD5 hash:
4e124dfeb3386ac7f0b0889a9a291531
SHA1 hash:
8b2ffa681691ea8458f19d2e06c6bc5b9b6aea72
SH256 hash:
9b4aee132a0228378d66a57fda3a2030952309ef74cf2db724ac916b04d8c034
MD5 hash:
93c6391d23c1aa1ed66fb13f82f2ee31
SHA1 hash:
220098c3047c32b51ae13a5cc1e9beeef3da6e18
SH256 hash:
a903b0aa18fd8d97acf3400ce77af32125d36f97423bdf2f6e5861ec120c9a46
MD5 hash:
5e92a482e34a17008e6c67d65cdd7cf5
SHA1 hash:
b22f41db50fb00258aefa6a4ef0dda3562066189
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 a903b0aa18fd8d97acf3400ce77af32125d36f97423bdf2f6e5861ec120c9a46

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments