MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b
SHA3-384 hash: 2e56cda49f8a192d471c3f47518e402c84bda473da814cd6bbbe85342a28a215169dc678b2b325cd3f42a13c5035b7ec
SHA1 hash: 8a2b87b5b5301ff5846de2afcd44ac968c7799e6
MD5 hash: 8e2843ecd350a81987669f750bbfe5ff
humanhash: seven-mango-fourteen-echo
File name:REMITTANCE ADVICE IF01112000212823419.pdf..exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:808'960 bytes
First seen:2020-07-29 11:15:13 UTC
Last seen:2020-07-30 12:49:33 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:1s6KMiTPv96fv5OI2tOcSQBDRciaiQt7rn58C63zb33NLi14QNdrZq0XOWR:VOHO5O0ucdFtiCuzz3NZQdrEIXR
Threatray 10'476 similar samples on MalwareBazaar
TLSH 6D05AE49E640E955CD7A6274A6B9C834C76A7CA9C172971D24FD7E773EFF3A300020A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: hospetsteels.com
Sending IP: 103.99.1.143
From: International Exchanger Department<chetan@hospetsteels.com>
Subject: REMITTANCE ADVICE: IF01200022823419
Attachment: REMITTANCE ADVICE IF01112000212823419.pdf..rar (contains "REMITTANCE ADVICE IF01112000212823419.pdf..exe")

AgentTesla SMTP exfil server:
mail.stankovic.hr:587

Intelligence

File Origin
# of uploads :
6
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34795/
Detection(s):
SecuriteInfo.com.Generic.mg.8e2843ecd350a819.3550.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Using the Windows Management Instrumentation requests
Unauthorized injection to a system process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/402351
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
Modifies the hosts 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 (e.g. based on Emerging Threat rules)
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 dnsIp2 2 Behavior Graph ID: 253537 Sample: REMITTANCE ADVICE IF0111200... Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 45 g.msn.com 2->45 47 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->47 57 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->57 59 Found malware configuration 2->59 61 Sigma detected: Scheduled temp file as task from temp location 2->61 63 6 other signatures 2->63 9 REMITTANCE ADVICE IF01112000212823419.pdf..exe 5 2->9         started        12 oPLNOE.exe 2 2->12         started        14 oPLNOE.exe 1 2->14         started        signatures3 process4 file5 37 C:\Users\user\AppData\Local\...\tmpF8BA.tmp, XML 9->37 dropped 39 C:\Users\user\AppData\...\&startupname&.exe, PE32 9->39 dropped 16 RegSvcs.exe 2 4 9->16         started        21 schtasks.exe 1 9->21         started        23 conhost.exe 12->23         started        25 conhost.exe 14->25         started        process6 dnsIp7 41 stankovic.hr 89.201.175.36, 49756, 587 OT-ASHR Croatia (LOCAL Name: Hrvatska) 16->41 43 mail.stankovic.hr 16->43 33 C:\Users\user\AppData\Roaming\...\oPLNOE.exe, PE32 16->33 dropped 35 C:\Windows\System32\drivers\etc\hosts, ASCII 16->35 dropped 49 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->49 51 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->51 53 Tries to steal Mail credentials (via file access) 16->53 55 5 other signatures 16->55 27 reg.exe 1 16->27         started        29 conhost.exe 21->29         started        file8 signatures9 process10 process11 31 conhost.exe 27->31         started       
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 11:17:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
37
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=q3ttcye4mh67fcmdinjebmhcrokur3ctqy6c3odqg3yppeytym5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'466 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
persistence spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200729-wq8rp279xj/
Behaviour
Creates scheduled task(s)
Modifies registry key
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads user/profile data of local email clients
Reads data files stored by FTP clients
Drops file in Drivers directory
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/86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b

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 824d441088d742b4e313ebb1782126ec4f3c85229a39b07f285225bd1d89416a

AgentTesla

Executable exe 86e731609c61fdf28983435240b0e28b9548ec53863c2db87036f0f79313c33b

(this sample)

  
Dropped by
MD5 bff4bd58e6f552b838fe814e48b014cb
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34795/
  
Dropped by
SHA256 824d441088d742b4e313ebb1782126ec4f3c85229a39b07f285225bd1d89416a

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