MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3d89fdd610f461d7ca638c14e5a570816e9b5089099872a95c8a87c7f62beb1f. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: 3d89fdd610f461d7ca638c14e5a570816e9b5089099872a95c8a87c7f62beb1f
SHA3-384 hash: c4bb516c7c01f7e288604d87b08dfdb93bef6cd18cc76cbe4f564883d744066eff8183583bc1f18248256f86e90c78da
SHA1 hash: b107fea7b29aa914fe46f0de440a4e1b3b2e74f6
MD5 hash: c457224aeee4beb698e259c7b9a8768a
humanhash: sodium-magnesium-iowa-salami
File name:PRE-ALERT ==HTHC2203440.exe
Download: download sample
Signature AgentTesla
File size:84'480 bytes
First seen:2023-08-17 06:01:38 UTC
Last seen:2023-08-21 07:26:24 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 1536:5Bj7NE45DT2B6cRu4uaGnkGThdcR/AfrzGfog+bbZzFbKbVblYWS:79GGThdcEW/zbS
Threatray 939 similar samples on MalwareBazaar
TLSH T16F834C286FD88623C7BB03B9A4B153049776F0A7F912EB8DBD4C45D81FA3390492179B
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter lowmal3
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
267
Origin country :
DE DE
Vendor Threat Intelligence
Malware family:
agenttesla
ID:
1
File name:
PRE-ALERT ==HTHC2203440.exe
Verdict:
Malicious activity
Analysis date:
2023-08-17 06:05:09 UTC
Tags:
agenttesla stealer

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
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Sending an HTTP GET request
Creating a file in the %AppData% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Stealing user critical data
Unauthorized injection to a system process
Gathering data
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:
spre.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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
Sigma detected: MSBuild connects to smtp port
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)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1292590 Sample: PRE-ALERT_==HTHC2203440.exe Startdate: 17/08/2023 Architecture: WINDOWS Score: 100 37 x1.c.lencr.org 2->37 39 mail92100.maychuemail.com 2->39 41 3 other IPs or domains 2->41 49 Found malware configuration 2->49 51 Multi AV Scanner detection for submitted file 2->51 53 Yara detected AgentTesla 2->53 55 7 other signatures 2->55 7 PRE-ALERT_==HTHC2203440.exe 16 6 2->7         started        12 Poyleju.exe 14 6 2->12         started        14 Poyleju.exe 2->14         started        16 2 other processes 2->16 signatures3 process4 dnsIp5 47 files.catbox.moe 108.181.20.39, 443, 49708, 49713 ASN852CA Canada 7->47 35 C:\Users\user\AppData\Roaming\Poyleju.exe, PE32 7->35 dropped 69 Creates multiple autostart registry keys 7->69 71 Writes to foreign memory regions 7->71 73 Injects a PE file into a foreign processes 7->73 18 MSBuild.exe 15 4 7->18         started        75 Multi AV Scanner detection for dropped file 12->75 23 MSBuild.exe 12->23         started        25 MSBuild.exe 12->25         started        27 MSBuild.exe 14->27         started        29 conhost.exe 16->29         started        31 conhost.exe 16->31         started        file6 signatures7 process8 dnsIp9 43 mail92100.maychuemail.com 112.213.92.100, 49712, 49718, 49720 SUPERDATA-AS-VNSUPERDATA-VN Viet Nam 18->43 45 api4.ipify.org 173.231.16.76, 443, 49709, 49717 WEBNXUS United States 18->45 33 C:\Users\user\AppData\Roaming\...\wSStSI.exe, PE32 18->33 dropped 57 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->57 59 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 18->59 61 Tries to steal Mail credentials (via file / registry access) 18->61 63 Creates multiple autostart registry keys 18->63 65 Tries to harvest and steal browser information (history, passwords, etc) 27->65 67 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->67 file10 signatures11
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-08-17 01:47:55 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
3d89fdd610f461d7ca638c14e5a570816e9b5089099872a95c8a87c7f62beb1f
MD5 hash:
c457224aeee4beb698e259c7b9a8768a
SHA1 hash:
b107fea7b29aa914fe46f0de440a4e1b3b2e74f6
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
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.

Malspam

AgentTesla

Executable exe 3d89fdd610f461d7ca638c14e5a570816e9b5089099872a95c8a87c7f62beb1f

(this sample)

  
Delivery method
Distributed via e-mail attachment

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