MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d4c146d2e12834ab7d804ce917f7714bebcb72c03928bd6269e5522e06bb133d. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d4c146d2e12834ab7d804ce917f7714bebcb72c03928bd6269e5522e06bb133d
SHA3-384 hash: 7b6570aafbaa2e719a7ae58575afff7e21d8ce4f5dbe38a9e020989874879bbdcd20df627bf65c45657e2ba92b43259d
SHA1 hash: 0ab70fc0e57703875146882a8b2a383641e60467
MD5 hash: 6b9afd7101d6bf88b225e7384d92b6d2
humanhash: sweet-mango-helium-india
File name:RFQ#20190128.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:833'024 bytes
First seen:2020-07-20 07:23:58 UTC
Last seen:2020-07-20 08:10:23 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:KOLQx1q9I6/kVdSC0Dycod+ik4g8ylSoD+J7W0gymEB3TiWYOgNlF9xUjUNH5bxS:KO8xudWYrE3oDM7W0gjiiW/gV8At
Threatray 10'653 similar samples on MalwareBazaar
TLSH A005E0C967A44440C9EDAFB95EA2CAB58B347C01F4F2970F1BC0AC9F297A393D414766
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: reachever.com
Sending IP: 209.58.149.66
From: Cheng Fukun <beryl@reachever.com>
Subject: REQUEST FOR QUOTATION - URGENT REQUIREMENT
Attachment: RFQ20190128.gz (contains "RFQ#20190128.exe")

AgentTesla SMTP exfil server:
smtp.rezuit.pro:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
73
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/28543/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.52265.19831.29227.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Unauthorized injection to a recently created process
Creating a file in the %temp% subdirectories
Reading critical registry keys
Creating a file
Deleting a recently created file
Reading Telegram data
Running batch commands
Creating a process with a hidden window
Launching a process
Sending a TCP request to an infection source
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/390922
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 247577 Sample: RFQ#20190128.exe Startdate: 20/07/2020 Architecture: WINDOWS Score: 100 31 Found malware configuration 2->31 33 Multi AV Scanner detection for dropped file 2->33 35 Sigma detected: Scheduled temp file as task from temp location 2->35 37 5 other signatures 2->37 7 RFQ#20190128.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\yRgiUkw.exe, PE32 7->19 dropped 21 C:\Users\user\...\yRgiUkw.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp89E4.tmp, XML 7->23 dropped 25 C:\Users\user\...\RFQ#20190128.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 11 RFQ#20190128.exe 4 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 smtp.rezuit.pro 11->27 29 us2.smtp.mailhostbox.com 208.91.199.225, 49720, 587 PUBLIC-DOMAIN-REGISTRYUS United States 11->29 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->43 45 Tries to steal Mail credentials (via file access) 11->45 47 Tries to harvest and steal ftp login credentials 11->47 49 Tries to harvest and steal browser information (history, passwords, etc) 11->49 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d4c146d2e12834ab7d804ce917f7714bebcb72c03928bd6269e5522e06bb133d/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-19 23:13:47 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2taunuxbfa2kw7majturp53rjpv4w4waheul2ytj4vjc4bv3cm6q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'643 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200720-xxjthas2ln/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Unknown
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d4c146d2e12834ab7d804ce917f7714bebcb72c03928bd6269e5522e06bb133d

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

gz 5dc94fc9f30dd0ba3cb93f7afa6f793e221a76d745aa861d6b91e3ebbfd3e74e

AgentTesla

Executable exe d4c146d2e12834ab7d804ce917f7714bebcb72c03928bd6269e5522e06bb133d

(this sample)

  
Dropped by
MD5 dfe0073e737a954f437748c8399fc8fa
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 5dc94fc9f30dd0ba3cb93f7afa6f793e221a76d745aa861d6b91e3ebbfd3e74e
Cape
Cape
https://www.capesandbox.com/analysis/28543/

Comments