MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b
SHA3-384 hash: 8a3991ae1d1f55d90572e6a9ec5d0840ab56bec7fc84eef3be747f240980a15fb776b6eab43227a56dbb09ee28dfb503
SHA1 hash: 3fc76fd5acfb65c8e860a78fd169fec6e9fb3a13
MD5 hash: 3a5d6fbeed702b0686f6fe070bc8bbba
humanhash: cardinal-oklahoma-steak-lima
File name:rKdhHVWehasFrcb.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:595'456 bytes
First seen:2020-08-31 10:35:03 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:nwOVAfdOsyiH2n7/fKJf1R6EzL3+MIYN7Hn:YAsyJn72f1RxzLZNJHn
Threatray 83 similar samples on MalwareBazaar
TLSH E4C4125AAA3CCF32E5FD2FF2E43E325A83750D26F116DE4ADC0A70C925757806144E6A
Reporter abuse_ch
Tags:AgentTesla exe Outlook


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: EUR02-VE1-obe.outbound.protection.outlook.com
Sending IP: 40.92.69.54
From: Johnny Kalemis <johnny-kalemis@hotmail.com>
Subject: PAYMENT - USD Copy
Attachment: PAYMENT...Xls.lzh (contains "rKdhHVWehasFrcb.exe")

AgentTesla SMTP exfil server:
roham.dnswebhost.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53401/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Using the Windows Management Instrumentation requests
Creating a file
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455246
Signature
.NET source code contains potential unpacker
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279997 Sample: rKdhHVWehasFrcb.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 Sigma detected: Scheduled temp file as task from temp location 2->39 41 6 other signatures 2->41 9 rKdhHVWehasFrcb.exe 6 2->9         started        process3 file4 27 C:\Users\user\AppData\Roaming\udUZoaNPn.exe, PE32 9->27 dropped 29 C:\Users\user\AppData\Local\...\tmp9406.tmp, XML 9->29 dropped 31 C:\Users\user\...\rKdhHVWehasFrcb.exe.log, ASCII 9->31 dropped 43 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 9->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->45 47 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 9->47 49 2 other signatures 9->49 13 rKdhHVWehasFrcb.exe 4 9->13         started        17 schtasks.exe 1 9->17         started        19 rKdhHVWehasFrcb.exe 9->19         started        signatures5 process6 dnsIp7 33 roham.dnswebhost.com 185.159.153.69, 49719, 587 SERVERPARSIR Iran (ISLAMIC Republic Of) 13->33 51 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 13->51 53 Tries to steal Mail credentials (via file access) 13->53 55 Tries to harvest and steal ftp login credentials 13->55 57 2 other signatures 13->57 21 conhost.exe 17->21         started        signatures8 process9 process10 23 MpCmdRun.exe 1 21->23         started        process11 25 conhost.exe 23->25         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 04:08:56 UTC
AV detection:
20 of 29 (68.97%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=gm54uuqcnhfbcqlwje7nfokezq4m5if36emejfbphnrsxprhg6fq._file
Verdict:
unknown
Similar samples:
14ac862307f76bdf323ae2ae84ed2b46b35483202bf81031c716143343ba7b00
AgentTesla
14c779eb9e7f6a3a77a4e0df7a8b64d7a74f7db8a7dede57dc5ce8936b83f5df
AgentTesla
29e48627a7f173fbbb821c3c136e48909acde6a2c488aec8ecaf7c12ba1df9c5
AgentTesla
37677fa0c9255eb7368ce3d54a42e2b3e23eff33c6e2008406d9f32a71b565b8
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545305810b041d0a1ea357652c1b98aa714b039c16af8d1d7ecdd8e513a59d8b
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9ffb458e6d120f6d42906c102ce49ecefbe4a937d6b605a4d3a1b3a7dc15e627
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ae386b6cfbca2ad61a9a4d642e99cd9bfaf9cf7fd647c2b420884df5f6692ddd
AgentTesla
aea7319d67789e4e524c4af9bcb842d66593a97dff25cb4be43eee5f5fb86963
AgentTesla
bf16393640303afe03a092d605a39a69d05158bce15d690128ef2b2103dfa5c7
AgentTesla
f595019c294b2717aad61673e0214db90da5f880d5177c81b30f053004450a56
AgentTesla
+ 73 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla evasion
Link:
https://tria.ge/reports/200831-jmz94tn4kn/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b

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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

rar 98a56d8eee82cdc72ec5f1fa33a84fb04448f8b1523379add7767db5f4184cd1

AgentTesla

Executable exe 333bca520269ca114176493ed2b944cc38cea0bbf11844942f3b632bbe27378b

(this sample)

  
Dropped by
MD5 b4c884a84dc23d328954d2d061c47df8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 98a56d8eee82cdc72ec5f1fa33a84fb04448f8b1523379add7767db5f4184cd1
Cape
Cape
https://www.capesandbox.com/analysis/53401/

Comments