MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5a3834895f08aff701a029275074d4ab47aff4951d6f75e8393b0a97cb8f6031. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5a3834895f08aff701a029275074d4ab47aff4951d6f75e8393b0a97cb8f6031
SHA3-384 hash: 2b73c43f685a10c8aedd5e127dfec1766563dce9bf95a4bb768dde0d95bc6b7ba19720d9047dc8ef71dbf422949b8c30
SHA1 hash: bdd88e03d9131d7f35e0bfadbed02010d231a1bd
MD5 hash: 152ef22896bf39197d210d40171e898a
humanhash: spaghetti-white-iowa-mike
File name:Purchase order 450080088 proj. Allt Charnan.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:677'888 bytes
First seen:2022-05-14 09:34:39 UTC
Last seen:2022-05-14 10:37:39 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 12288:TuXha3wv5LRtvlWwlCBYB6xLKWvV+smSe2r5uLd/zUoylGey4:aY05vlRlCBOMLKZSes8d/zlyN
Threatray 18'169 similar samples on MalwareBazaar
TLSH T167E4F13DF1F79E22C35D26B2C0C65A0443B44AAAA637E35B2B4581D59D03BF789887C7
TrID 69.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.9% (.EXE) Win64 Executable (generic) (10523/12/4)
6.2% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.7% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.2% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
244
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/270596/
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Creating a window
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
clipbanker control.exe formbook obfuscated packed replace.exe
Link:
https://www.filescan.io/uploads/627f77e1ae83652f0e9ff422/reports/d8913b01-8d4c-44de-be6d-ebf94f413ec5/overview
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/09d62410-6fa8-49d8-b38e-eaa52fd5cde8
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/994042
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains very large array initializations
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Initial sample is a PE file and has a suspicious name
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)
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
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 626538 Sample: Purchase order 450080088 pr... Startdate: 14/05/2022 Architecture: WINDOWS Score: 100 67 us2.smtp.mailhostbox.com 2->67 69 smtp.transmase.com 2->69 83 Found malware configuration 2->83 85 Malicious sample detected (through community Yara rule) 2->85 87 Multi AV Scanner detection for dropped file 2->87 89 14 other signatures 2->89 8 Purchase order 450080088 proj. Allt Charnan.exe 7 2->8         started        12 jVULYR.exe 2->12         started        14 jVULYR.exe 2->14         started        signatures3 process4 file5 49 C:\Users\user\AppData\Roaming49pPgfycY.exe, PE32 8->49 dropped 51 C:\Users\...51pPgfycY.exe:Zone.Identifier, ASCII 8->51 dropped 53 C:\Users\user\AppData\Local\...\tmp86F3.tmp, XML 8->53 dropped 55 Purchase order 450...llt Charnan.exe.log, ASCII 8->55 dropped 91 Adds a directory exclusion to Windows Defender 8->91 16 Purchase order 450080088 proj. Allt Charnan.exe 2 9 8->16         started        21 powershell.exe 25 8->21         started        23 schtasks.exe 1 8->23         started        25 Purchase order 450080088 proj. Allt Charnan.exe 8->25         started        93 Multi AV Scanner detection for dropped file 12->93 95 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->95 97 Machine Learning detection for dropped file 12->97 99 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->99 27 jVULYR.exe 12->27         started        29 schtasks.exe 12->29         started        31 jVULYR.exe 14->31         started        33 schtasks.exe 14->33         started        signatures6 process7 dnsIp8 57 162.222.225.16, 49752, 587 PUBLIC-DOMAIN-REGISTRYUS United States 16->57 59 us2.smtp.mailhostbox.com 208.91.198.38, 49747, 49823, 49837 PUBLIC-DOMAIN-REGISTRYUS United States 16->59 65 2 other IPs or domains 16->65 43 C:\Users\user\AppData\Roaming\...\jVULYR.exe, PE32 16->43 dropped 45 C:\Windows\System32\drivers\etc\hosts, ASCII 16->45 dropped 47 C:\Users\user\...\jVULYR.exe:Zone.Identifier, ASCII 16->47 dropped 71 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->71 73 Tries to steal Mail credentials (via file / registry access) 16->73 75 Modifies the hosts file 16->75 77 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->77 35 conhost.exe 21->35         started        37 conhost.exe 23->37         started        61 smtp.transmase.com 27->61 39 conhost.exe 29->39         started        63 smtp.transmase.com 31->63 79 Tries to harvest and steal ftp login credentials 31->79 81 Tries to harvest and steal browser information (history, passwords, etc) 31->81 41 conhost.exe 33->41         started        file9 signatures10 process11
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5a3834895f08aff701a029275074d4ab47aff4951d6f75e8393b0a97cb8f6031/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-05-13 11:32:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 41 (51.22%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=li4djck7bcx7oanafetva5guvnd275evdvxxl2bzhmfjps4pmayq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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f8f3a24e97b0c9e4941baab62a4eeb64b9cc7e82ad97398b95b58fbf1289fb24
AgentTesla
+ 18'159 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/220514-lkbrmsgga9/
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
Gathering data
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5a3834895f08aff701a029275074d4ab47aff4951d6f75e8393b0a97cb8f6031

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
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
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 5a3834895f08aff701a029275074d4ab47aff4951d6f75e8393b0a97cb8f6031

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/270596/

Comments