MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a5d374e2a5ab0e6b9586c7568736c13f27f162a9a08d76e20b0112cbc71a020. 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 2 File information Comments

SHA256 hash: 3a5d374e2a5ab0e6b9586c7568736c13f27f162a9a08d76e20b0112cbc71a020
SHA3-384 hash: cbf6f30caf7b5e6109e1ba3ccbaab9b8055bccf5622fc75270592cd5f3638f575c642d09e9ad82cd5aae68f2c00dc061
SHA1 hash: 654ab213329d9b14f6febb49e63ca557f6117588
MD5 hash: 13bb15ab068155ca84dea6d413f5a39c
humanhash: east-nineteen-nevada-timing
File name:invoice.exe
Download: download sample
Signature AgentTesla
File size:912'896 bytes
First seen:2022-10-05 22:26:53 UTC
Last seen:2022-10-10 06:10:53 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:MRuzdndo4D8t/QEM1VNKCgBf+AFhz9Zcd6ji/5FncZHmeR012Lk4ve:zo4E8NPgBfPNcQ+/kHo2Lk4ve
Threatray 19'903 similar samples on MalwareBazaar
TLSH T16F15CF3206E6DA0BD5162338DDD2C3F1AFE85EA5A271C3474FE9BC6FF41B0A66A11144
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
334
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Сreating synchronization primitives
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a process from a recently created file
Creating a process with a hidden window
Creating a file in the %temp% directory
Launching a process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
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 potential unpacker
.NET source code contains very large array initializations
Adds a directory exclusion to Windows Defender
Allocates memory in foreign processes
Initial sample is a PE file and has a suspicious name
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)
Sigma detected: Scheduled temp file as task from temp location
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
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 717080 Sample: invoice.exe Startdate: 06/10/2022 Architecture: WINDOWS Score: 100 44 Snort IDS alert for network traffic 2->44 46 Malicious sample detected (through community Yara rule) 2->46 48 Sigma detected: Scheduled temp file as task from temp location 2->48 50 8 other signatures 2->50 7 invoice.exe 7 2->7         started        11 BHJYpDBXElywS.exe 5 2->11         started        process3 file4 32 C:\Users\user\AppData\...\BHJYpDBXElywS.exe, PE32 7->32 dropped 34 C:\...\BHJYpDBXElywS.exe:Zone.Identifier, ASCII 7->34 dropped 36 C:\Users\user\AppData\Local\...\tmp94B7.tmp, XML 7->36 dropped 38 C:\Users\user\AppData\...\invoice.exe.log, ASCII 7->38 dropped 52 Uses schtasks.exe or at.exe to add and modify task schedules 7->52 54 Writes to foreign memory regions 7->54 56 Adds a directory exclusion to Windows Defender 7->56 58 Injects a PE file into a foreign processes 7->58 13 RegSvcs.exe 2 7->13         started        18 powershell.exe 21 7->18         started        20 schtasks.exe 1 7->20         started        60 Multi AV Scanner detection for dropped file 11->60 62 Machine Learning detection for dropped file 11->62 64 Allocates memory in foreign processes 11->64 22 RegSvcs.exe 2 11->22         started        24 schtasks.exe 1 11->24         started        signatures5 process6 dnsIp7 42 mail.pisc.lk 108.170.60.107, 49696, 49698, 587 SSASN2US United States 13->42 40 C:\Windows\System32\drivers\etc\hosts, ASCII 13->40 dropped 66 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->66 68 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 13->68 70 Tries to steal Mail credentials (via file / registry access) 13->70 76 2 other signatures 13->76 26 conhost.exe 18->26         started        28 conhost.exe 20->28         started        72 Tries to harvest and steal ftp login credentials 22->72 74 Tries to harvest and steal browser information (history, passwords, etc) 22->74 30 conhost.exe 24->30         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2022-10-05 09:26:15 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
21 of 26 (80.77%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger 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
Checks computer location settings
Drops file in Drivers directory
AgentTesla
Gathering data
Unpacked files
SH256 hash:
0ca6a94954773fe696544c97ba11889d2d1964ef837f7fa625278bc931945aed
MD5 hash:
da853702cecda6f6e9327a2873774cfc
SHA1 hash:
e8615fe2a8a94a0fcabcc4435ff10b381b84f790
SH256 hash:
42fd029a8562110f266657ecf9d7b391352d03c933375057c3c1f0090f9f89e9
MD5 hash:
98bcb448c9f2bd948d57aed8305af444
SHA1 hash:
bec89f8d9346005786f24e4a38811ec7199e1d16
SH256 hash:
5fbdcb76c77563ed3d729fdca3396169c54443253001cf9b1b6b75a0f75cdcb4
MD5 hash:
629c31e71cfa6aab7a62bef45298816c
SHA1 hash:
932da9270d08d3b97ad1fb75e3d3180481f91096
SH256 hash:
bee476c317e1cbc2cca341dc43fae1a12f5539f0574f536af85f73829cc06431
MD5 hash:
37cf67da0be2c06d107f2b1c46daedb9
SHA1 hash:
2b381613d6b1360096c7f08be6b6c5b8df31fb26
SH256 hash:
e20ec8f3c957bcb6a194ef688bae8af2015cfffb20e7baf8b2114d7b70ade4ee
MD5 hash:
35cb29046968faca7f3f3b4463449b6c
SHA1 hash:
088c8c30ec1bece0a4b5bbfe3982b073f8b95598
SH256 hash:
3a5d374e2a5ab0e6b9586c7568736c13f27f162a9a08d76e20b0112cbc71a020
MD5 hash:
13bb15ab068155ca84dea6d413f5a39c
SHA1 hash:
654ab213329d9b14f6febb49e63ca557f6117588
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 3a5d374e2a5ab0e6b9586c7568736c13f27f162a9a08d76e20b0112cbc71a020

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments