MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments

SHA256 hash: 7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543
SHA3-384 hash: 6aa3c2ec66c741950c94dc5381b6e7555368d608859a372457d219592ddef4341afe219b0887a16070d6f9680ccc9700
SHA1 hash: fd5f3124dcc644c1d0ba2d50a7f537d3419c4c00
MD5 hash: fd2a65e85014bd32ade251f48948e0a5
humanhash: pluto-green-potato-venus
File name:Arco PO5650.exe
Download: download sample
Signature AgentTesla
File size:688'128 bytes
First seen:2022-08-15 07:28:53 UTC
Last seen:2022-08-17 08:54:31 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 12288:I/GMsdD6NRQ9Lz2t2Bx0SI+IPWiT6WjS9qrbamPM2TgREgIanwAh6V0gD6zaxdt/:I/cpR/Bx0fJVTnS9o5dg6Q
TLSH T144E406AD3554708ECC23F571DD9B1CA4AA91BC662F0BB15F5023319A9A3C59F8F0C9B2
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
7
# of downloads :
274
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
Arco PO5650.exe
Verdict:
Malicious activity
Analysis date:
2022-08-15 07:31:02 UTC
Tags:
agenttesla

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 custom TCP request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
fareit 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.adwa.spyw.evad
Score:
100 / 100
Signature
.NET source code contains very large array initializations
.NET source code contains very large strings
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Modifies the hosts file
Multi AV Scanner detection for dropped file
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)
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 ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses schtasks.exe or at.exe to add and modify task schedules
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Generic Downloader
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 683867 Sample: Arco PO5650.exe Startdate: 15/08/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Multi AV Scanner detection for dropped file 2->48 50 14 other signatures 2->50 7 yqWDN.exe 5 2->7         started        10 Arco PO5650.exe 6 2->10         started        process3 file4 52 Multi AV Scanner detection for dropped file 7->52 54 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->54 56 Machine Learning detection for dropped file 7->56 58 2 other signatures 7->58 13 yqWDN.exe 14 2 7->13         started        17 schtasks.exe 1 7->17         started        36 C:\Users\user\AppData\...\evnAXfjJhFoU.exe, PE32 10->36 dropped 38 C:\Users\user\AppData\Local\...\tmpF598.tmp, XML 10->38 dropped 40 C:\Users\user\AppData\...\Arco PO5650.exe.log, ASCII 10->40 dropped 19 Arco PO5650.exe 17 5 10->19         started        22 schtasks.exe 1 10->22         started        24 Arco PO5650.exe 10->24         started        signatures5 process6 dnsIp7 60 Tries to harvest and steal ftp login credentials 13->60 62 Tries to harvest and steal browser information (history, passwords, etc) 13->62 26 conhost.exe 17->26         started        42 api.telegram.org 149.154.167.220, 443, 49752, 49755 TELEGRAMRU United Kingdom 19->42 30 C:\Users\user\AppData\Roaming\...\yqWDN.exe, PE32 19->30 dropped 32 C:\Windows\System32\drivers\etc\hosts, ASCII 19->32 dropped 34 C:\Users\user\...\yqWDN.exe:Zone.Identifier, ASCII 19->34 dropped 64 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 19->64 66 Tries to steal Mail credentials (via file / registry access) 19->66 68 Modifies the hosts file 19->68 70 Hides that the sample has been downloaded from the Internet (zone.identifier) 19->70 28 conhost.exe 22->28         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-08-15 02:38:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
44
AV detection:
22 of 25 (88.00%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
Malware Config
C2 Extraction:
https://api.telegram.org/bot5357159221:AAEuOoQ0pUc4ccIZou0EJ5Zin0mMneE2jYg/sendDocument
Unpacked files
SH256 hash:
5e97ccd8dafcb36b3cb772f6a2fd425abcf221ab9ea1930e8c2618c95332f2c6
MD5 hash:
01800f6b045def8d90c649842f56d752
SHA1 hash:
f8434a4636d0772d01aac44bb3f9753a41f01d34
SH256 hash:
737b9aa9045e2e7607e6693c4166683749a74b2b3a334752ea1f0a8cb82f1250
MD5 hash:
2b13b26f6a3c1180bf959b4aa8310c49
SHA1 hash:
725d2647008c96766169e34c538cc398246d4365
SH256 hash:
0a7b35ab366025e18b6978f2578e02bfd5aed623ffa13efdc9611122d73345cc
MD5 hash:
4dd909d20e15a1946ba9ecfacff4781d
SHA1 hash:
35f0fa49218993a81d04cc8d86cec0b19e9351ef
SH256 hash:
7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543
MD5 hash:
fd2a65e85014bd32ade251f48948e0a5
SHA1 hash:
fd5f3124dcc644c1d0ba2d50a7f537d3419c4c00
Malware family:
AgentTesla.v3
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: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.

Malspam

AgentTesla

Executable exe 7ef3e3ed9bfe4215f024dcbb80e571f1bd3c99049bda18f711dcf84e05c31543

(this sample)

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