MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 390742120fc89ba2735772dbb63c0998bdb2d26df99976a5406477c4ffab56c2. 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 15 File information Comments

SHA256 hash: 390742120fc89ba2735772dbb63c0998bdb2d26df99976a5406477c4ffab56c2
SHA3-384 hash: 2d79f77d5ec9e17adcd55ea943bddb076e5c741634cae6f5bbb03e33ca27e8b0cf4f3c96b13735f11ad9e5f00b936094
SHA1 hash: 44f2a04f059e94ce47a2da8ed0b175a97e20ddde
MD5 hash: cb17689f9f2f8ead0450a9fa21ea6920
humanhash: mockingbird-music-alaska-grey
File name:HesapEkstresi_08012024_13014688_3871782_MY_2.exe
Download: download sample
Signature Formbook
File size:685'568 bytes
First seen:2024-01-16 16:22:11 UTC
Last seen:2024-01-16 18:22:45 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'474 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 12288:Pz1uPBa5rr1wAM1F0XtZFBlZMMDcrKJSja7kaGPASF:Pua5rvM1FqnFBnMMDTSyoASF
Threatray 4'676 similar samples on MalwareBazaar
TLSH T1B5E4220C667C5B3BD6EE4F7DA120A08103F1EB0A9681C741EDCA34E71FA7B414919A9F
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter e24111111111111
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
3
# of downloads :
319
Origin country :
GR GR
Vendor Threat Intelligence
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
control lolbin 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:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
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
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic
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 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:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2024-01-08 12:32:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
7
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Looks up external IP address via web service
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:
21afe82a0b71ee589c26f32dc88e0a6e22817f21194b2a83f1807c6cecc8c818
MD5 hash:
440bb4db146ccb1161ac2bcf365d7676
SHA1 hash:
506eda511b46df6e95d86861e70fda81307f8623
SH256 hash:
7f3ef4658a1b5cff1d0964a68f69d36821f8eacb079cd2f43d007897eb7ab0cb
MD5 hash:
3801a4e3937b0b8ab1f2cd8ca16e478c
SHA1 hash:
31bb63eff712380866c11e5591756df45f9965d7
SH256 hash:
052840c1d3710cd243e9909f06b5b4018e99dd8dc71ed4f89fe22a0c2cfe9966
MD5 hash:
f379d96c2e5179fb564e6e9d8a8b559d
SHA1 hash:
20d4880523c0f66d020377d1fd47fbe1dba1d30a
Detections:
AgentTesla win_agent_tesla_g2 INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients Agenttesla_type2 INDICATOR_SUSPICIOUS_Binary_References_Browsers INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL INDICATOR_EXE_Packed_GEN01 INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
SH256 hash:
94d90e18887da676768490a40eafcf565f683203ca097e781cb1a289ab653813
MD5 hash:
151fac5d66028f175fe46075ecb68a64
SHA1 hash:
010db6c2cab437bf60ad258946711743664a389e
SH256 hash:
390742120fc89ba2735772dbb63c0998bdb2d26df99976a5406477c4ffab56c2
MD5 hash:
cb17689f9f2f8ead0450a9fa21ea6920
SHA1 hash:
44f2a04f059e94ce47a2da8ed0b175a97e20ddde
Malware family:
AgentTesla
Verdict:
Malicious
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:AgentTeslaV3
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:DebuggerCheck__RemoteAPI
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:INDICATOR_EXE_Packed_GEN01
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
Author:ditekSHen
Description:Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:NET
Author:malware-lu
Rule name:NETexecutableMicrosoft
Author:malware-lu
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