MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e913d576e64c61f0fd94309e27a65a91f3418aae1914106ad0abc21745098428. 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: 12


Intelligence 12 IOCs YARA 5 File information Comments

SHA256 hash: e913d576e64c61f0fd94309e27a65a91f3418aae1914106ad0abc21745098428
SHA3-384 hash: cf52a095a6484517e1a46cd825ede99e5a1bc62f4dc66cac34c945a417e81a0c024121dd2785ae7fdcca23d9b84d4be3
SHA1 hash: 8f713c46dc65b30336a52a7d5d2ca8c4567516ac
MD5 hash: 4a28b0c44bc594736121dbeb8fd396b7
humanhash: illinois-mississippi-triple-foxtrot
File name:2 months salary receipt.exe
Download: download sample
Signature Formbook
File size:310'784 bytes
First seen:2022-04-19 11:54:17 UTC
Last seen:2022-04-21 05:21:54 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'655 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 6144:hB719UMbdr2RiJ+I0WKY6HZlU8DGwr2ONkNw9PeqW5K:hp3rGiJ+6sUg1BCL
Threatray 11'656 similar samples on MalwareBazaar
TLSH T13864D098B7E98A17D0BF4B7594F281A10B78BD26962FE74F0D8924DD1CB37808613367
TrID 61.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.0% (.SCR) Windows screen saver (13101/52/3)
8.8% (.EXE) Win64 Executable (generic) (10523/12/4)
5.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):PE icon
dhash icon b68ce8e88c326822 (1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook xloader

Intelligence


File Origin
# of uploads :
4
# of downloads :
270
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching the process to change network settings
Searching for synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Launching a process
Creating a file
Сreating synchronization primitives
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe obfuscated packed replace.exe
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:
96 / 100
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-04-19 10:07:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:rugs loader rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Gathers network information
Program crash
Suspicious use of SetThreadContext
Uses the VBS compiler for execution
Xloader Payload
Xloader
Unpacked files
SH256 hash:
d29ecbcf80517099d58859b541033d06b5075a0e5155035db222376abfd1a687
MD5 hash:
53eaed84dc025fd02721d92b70344f51
SHA1 hash:
5838408a56053b1f206b8f0551753adef16d2dad
SH256 hash:
e913d576e64c61f0fd94309e27a65a91f3418aae1914106ad0abc21745098428
MD5 hash:
4a28b0c44bc594736121dbeb8fd396b7
SHA1 hash:
8f713c46dc65b30336a52a7d5d2ca8c4567516ac
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:INDICATOR_EXE_Packed_SmartAssembly
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:malware_Formbook_strings
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash
Rule name:win_formbook_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.

File information


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

Malspam

Formbook

Executable exe e913d576e64c61f0fd94309e27a65a91f3418aae1914106ad0abc21745098428

(this sample)

  
Dropped by
xloader
  
Delivery method
Distributed via e-mail attachment

Comments