MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 51f75531bd47bc9d1879bd84acb96441e7816e81bdb2c8c162817178e7c6e8cd. 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: 11


Intelligence 11 IOCs YARA 3 File information Comments

SHA256 hash: 51f75531bd47bc9d1879bd84acb96441e7816e81bdb2c8c162817178e7c6e8cd
SHA3-384 hash: b4f575fd2d772a2d43db911dca876158d84e88ce32a936817686808eee2ef6e0355da3b35c8e6c5da66dd254a3ac5cea
SHA1 hash: 0bbe4c905f28ed9390f6ab3b78b2cfe8e13f337d
MD5 hash: f98310ec2e5071d401c8c16430b8d0b0
humanhash: bluebird-item-mobile-video
File name:invoice No 8882.exe
Download: download sample
Signature AgentTesla
File size:1'280'000 bytes
First seen:2021-01-09 17:26:57 UTC
Last seen:2021-01-09 18:54:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 24576:zgzCZy1UDf/oqwiQZDKnUFOcIuTV9SmuDAIlgcFbo:Ucy4/o5iQknSwuTV4mRoFbo
Threatray 2'106 similar samples on MalwareBazaar
TLSH 4A45D098F540B5BEF55ABD7289701F70992C2C62061BE20F740736DC597C6CA8ED3EA2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: flowtronix.com
Sending IP: 185.222.57.207
From: Maggie Cao <psl.il1@flowtronix.com>
Subject: Inquiry 208854PROCUREMENT, SUPPLY
Attachment: invoice No 8882.zip (contains "invoice No 8882.exe")

AgentTesla SMTP exfil server:
smtp.epaindemgroup.com:587

Intelligence


File Origin
# of uploads :
2
# of downloads :
303
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
invoice No 8882.exe
Verdict:
Malicious activity
Analysis date:
2021-01-09 17:28:35 UTC
Tags:
n/a

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 UDP request
Unauthorized injection to a recently created process
Creating a file
Launching a process
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
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 access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.Taskun
Status:
Malicious
First seen:
2021-01-09 16:11:34 UTC
AV detection:
15 of 29 (51.72%)
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 WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of SetThreadContext
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:
51f75531bd47bc9d1879bd84acb96441e7816e81bdb2c8c162817178e7c6e8cd
MD5 hash:
f98310ec2e5071d401c8c16430b8d0b0
SHA1 hash:
0bbe4c905f28ed9390f6ab3b78b2cfe8e13f337d
SH256 hash:
1e8ff516a74624f6140d8d6d04c1727e8dad53e99a3998c94029c1b9f26b1794
MD5 hash:
a75939ae1f1a57c2acce3c91828d0923
SHA1 hash:
28cc241bc31076199e53b12b14b4e8cce8f7f9d2
SH256 hash:
64a419709ad219ffc006bda776b650da486d55048d2fa34525f40227da0e5c86
MD5 hash:
88c0ec8398978fa2e4240f02765086ad
SHA1 hash:
5a5c4935b2d70e890c89ad9332365f4f4aa86f3c
SH256 hash:
b65af696d20165faae87c4e914bcf2740ac23329763a38f086f8cf1599c17923
MD5 hash:
9bc4ef8952c7fb54a88c13f7e0c6b692
SHA1 hash:
b71c74f3504c5b558bc77c8f1f003c3ca23c1539
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe 51f75531bd47bc9d1879bd84acb96441e7816e81bdb2c8c162817178e7c6e8cd

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments