MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e57c8b4959ab4b4b45b184485069be4ae3803697461d97cbead97136ad00e60d. 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



AgentTesla


Vendor detections: 18


Intelligence 18 IOCs YARA 8 File information Comments

SHA256 hash: e57c8b4959ab4b4b45b184485069be4ae3803697461d97cbead97136ad00e60d
SHA3-384 hash: 42276bc225ec20f65833a86b52aee4faf2fa65ffde4cf6b9bac3dfe4188dcccac42a271195e83435fd0f58d0a5c4bf53
SHA1 hash: 0b7a414cf619263aa6257c38c102ff062ec1aece
MD5 hash: a39ba4aaaf02b67dec94187aae8ee1fe
humanhash: oven-william-sierra-delta
File name:a39ba4aaaf02b67dec94187aae8ee1fe.exe
Download: download sample
Signature AgentTesla
File size:464'623 bytes
First seen:2023-09-06 06:35:35 UTC
Last seen:2023-09-06 08:44:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader)
ssdeep 6144:2Ya62XMMpvFjjX7zX+MVjzhsU9k2ieL2Q+I+uc4Say8r3Bcd/HNKa/OR3bAwKP:2YYrpvFjz+M5d/k2iN5Ozpcd/jOR3Mw2
Threatray 2 similar samples on MalwareBazaar
TLSH T1E8A4231916A9C92BC7F241B348BDA5495BE1EF3D6B82291B23D0B97F35362C35E2C311
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 78f9b898b8c2c940 (16 x Formbook, 15 x AgentTesla, 2 x AveMariaRAT)
Reporter abuse_ch
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
295
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PR # 621005401.doc
Verdict:
Malicious activity
Analysis date:
2023-09-06 06:08:16 UTC
Tags:
exploit cve-2017-11882 loader stealer agenttesla

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Reading critical registry keys
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
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, NSISDropper
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to log keystrokes (.Net Source)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Installs a global keyboard hook
Machine Learning detection for dropped file
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
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 NSISDropper
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Strictor
Status:
Malicious
First seen:
2023-09-06 06:36:08 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
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:
3fe6ae350a2017245350a77279b2bccd56606b06c76eb192fd1d66c1c940dd19
MD5 hash:
1b60f83cbafad0d5a5f262fbfa40c675
SHA1 hash:
0f6977b534082ec2a19f1a4d744efb557f18ca7d
Detections:
AgentTesla
SH256 hash:
eb17f67191d751a4cd774272baaa1fcff783e574068b46180cdf4db1916acdaf
MD5 hash:
d22aa107987138fbb12b64ffd8389d30
SHA1 hash:
bbe938443dcbbfc49c3d3273248e6081a42d26c2
SH256 hash:
e57c8b4959ab4b4b45b184485069be4ae3803697461d97cbead97136ad00e60d
MD5 hash:
a39ba4aaaf02b67dec94187aae8ee1fe
SHA1 hash:
0b7a414cf619263aa6257c38c102ff062ec1aece
Malware family:
AgentTesla.v4
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
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:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:pe_imphash
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
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.

Web download

AgentTesla

Executable exe e57c8b4959ab4b4b45b184485069be4ae3803697461d97cbead97136ad00e60d

(this sample)

  
Delivery method
Distributed via web download

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