MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377
SHA3-384 hash: 07a0b5056ae394f93a2c05896de5314f02a43b28ff663aa48102a764c016abee96dc3753cdd687d71fdb468ec4bf7413
SHA1 hash: fd5564578d59e4baa4ac6736a21b43bb9f7a1578
MD5 hash: 61a51c6847dc4788e0eaf38800489e75
humanhash: charlie-fish-beer-yellow
File name:REMITTANCE ADVICE IF01200022823418 Match 2024.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:726'528 bytes
First seen:2024-04-22 10:45:46 UTC
Last seen:2024-04-22 11:31:11 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:lD/+22yn+RfV0Q3Vnr6FAyXmg4UffH6oTbX+LSteTUBaaHnp:lr7N+RfVjFnroASmgHDX7H
TLSH T19BF412087AFA6F06E93D57B0557259085372A03B5273E74B0FCA90EA1E33784CA58F67
TrID 69.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.0% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.2% (.EXE) Win32 Executable (generic) (4504/4/1)
1.9% (.EXE) Win16/32 Executable Delphi generic (2072/23)
Reporter lowmal3
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
340
Origin country :
DE DE
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
DNS request
Connection attempt
Sending a custom TCP request
Sending an HTTP GET request
Reading critical registry keys
Stealing user critical data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/66263fed54bafb7d21d8ab94/reports/440ba58a-59c1-4a73-8b60-ad7bdd4d0f3c/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/e1f1b3d2-56ec-428b-8ea5-c8b10b0fccc2
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1429590
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-22 07:02:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 24 (95.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gzdfm2zq3vh4v27fqxg6wyr6w4k2b4uv65hak7lrdg5ifmpiqn3q._file
Verdict:
malicious
Label(s):
agenttesla_v4
Create hunting rule
agenttesla
Create hunting rule
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240422-mtys7sad38/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Looks up external IP address via web service
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
5622572b4479cbcaa6ea1f15825bb18e253b5096a8bdd80b2434e50289aa1d4a
MD5 hash:
548739f8d1047c968a5f9fc31a59c572
SHA1 hash:
ee459d8d2548e2f14d48d064d58190b97755f396
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
SH256 hash:
207da0c63ed408641db252209db235a14b5065eeccd46b26531aaaa1fd28b9cc
MD5 hash:
95a11fb1c52fed3580b8154158260c7d
SHA1 hash:
b9da1b954e6580384577d3d5170b0437befb8b68
Detections:
win_agent_tesla_g2
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Agenttesla_type2
Create hunting rule
MALWARE_Win_AgentTeslaV2
Create hunting rule
INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Create hunting rule
INDICATOR_EXE_Packed_GEN01
Create hunting rule
INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
Parent samples :
3a93ebec868141d7e6d804c825c79934f5db6b72825c74635b9f6c0f98217b76
3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377
bf797b35ba6e000bb02bfaadb3d2b27fae71945e5c69fb970aee3f749cd373ed
070b26a4997c79949e6e34ecbd430a7f23c4e08ea426df2a743de893b8e9243c
f84fb3796d2afde51b6249b7656cef901cf8b66ae2ea5ba105dabc8683cf4236
SH256 hash:
3439f106cf5533ff32cf6f5a353704e7d912003d8dc841a119d487ef02ee7c17
MD5 hash:
a95d22b0b03a5efe0c3c02f91c65acb2
SHA1 hash:
98072fbc111b900980cabd8cb6e2315cc0cc0456
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
SH256 hash:
b4550e4748ddf4c986bc2796c2fdf5c8bb862ff1b424861be386f8aaaa5b37b4
MD5 hash:
5e07a69b959b014792aaf6e2e876cba8
SHA1 hash:
58609c01bb1d0670bd89669d174728a4b696a503
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
SH256 hash:
9d29ddb766975d283e42d47ee67fd1f3b88ddecf6defe6f408651984a1eb7313
MD5 hash:
fab0e6b2412a13709095243bcf12af07
SHA1 hash:
23ad8b746833f68dcad791f23f3c7f236af907bb
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
SH256 hash:
3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377
MD5 hash:
61a51c6847dc4788e0eaf38800489e75
SHA1 hash:
fd5564578d59e4baa4ac6736a21b43bb9f7a1578
Link:
https://www.unpac.me/results/63aa0f76-b036-48ac-99bd-2001c5f14172/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/3646566b30dd/report/overview.html
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:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 3646566b30dd4fcaebe585cdeb623eb715a0f295f74e057d7119ba82b1e88377

(this sample)

  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments