MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c7623c6425b465c72470a20172fd41b82be7c0893bd0e89b348ff196a604743b. 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: c7623c6425b465c72470a20172fd41b82be7c0893bd0e89b348ff196a604743b
SHA3-384 hash: e93cda77bf85acc3b2561ac8a7f77e867052113c6c938795a7174b3136ed695662d391e9a63f42e8010c570c7ecc7e40
SHA1 hash: ce50afe68b92b3ad6f22bbb0618ea27aabcf9982
MD5 hash: a25434033ff020fa0071ceb2d9d3e654
humanhash: solar-maine-butter-delaware
File name:UNPAID INVOICES.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'079'296 bytes
First seen:2020-07-20 08:17:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 24576:cuY9OPW2rEloDz2USr5iSSv1ibDdroJg15NypM5L:I9OzrsovpSr56UpoJu4pM5L
Threatray 10'621 similar samples on MalwareBazaar
TLSH 1935F1C96AA09405D2ED2FF65E62CAB44374BC04F5F1930B2FD1BD8F293A792D884752
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: mm0.820.biniomunidos.gq
Sending IP: 134.209.87.72
From: NCS LINE WORLD WIDE - HQ <info@ncsline.com>
Subject: UNPAID INVOICES
Attachment: UNPAID INVOICES.rar (contains "UNPAID INVOICES.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/28807/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.52265.29114.2819.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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/391060
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 247850 Sample: UNPAID INVOICES.exe Startdate: 20/07/2020 Architecture: WINDOWS Score: 100 35 Found malware configuration 2->35 37 Multi AV Scanner detection for submitted file 2->37 39 Yara detected AgentTesla 2->39 41 4 other signatures 2->41 6 WNRUXJ.exe 1 2->6         started        9 UNPAID INVOICES.exe 1 2->9         started        12 WNRUXJ.exe 2->12         started        process3 file4 43 Multi AV Scanner detection for dropped file 6->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->45 47 Machine Learning detection for dropped file 6->47 49 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 6->49 14 WNRUXJ.exe 10 6->14         started        27 C:\Users\user\...\UNPAID INVOICES.exe.log, ASCII 9->27 dropped 51 Injects a PE file into a foreign processes 9->51 18 UNPAID INVOICES.exe 2 13 9->18         started        21 WNRUXJ.exe 2 12->21         started        signatures5 process6 dnsIp7 29 smtp.yandex.com 14->29 53 Tries to harvest and steal ftp login credentials 14->53 55 Tries to harvest and steal browser information (history, passwords, etc) 14->55 57 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->57 31 smtp.yandex.ru 77.88.21.158, 49735, 49736, 49737 YANDEXRU Russian Federation 18->31 33 smtp.yandex.com 18->33 23 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 18->23 dropped 25 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 18->25 dropped 59 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 18->59 61 Moves itself to temp directory 18->61 63 Tries to steal Mail credentials (via file access) 18->63 65 Installs a global keyboard hook 18->65 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c7623c6425b465c72470a20172fd41b82be7c0893bd0e89b348ff196a604743b/
Threat name:
ByteCode-MSIL.Trojan.Masslogger
Create hunting rule
Status:
Malicious
First seen:
2020-07-20 08:19:05 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=y5rdyzbfwrs4ojdquiaxf7kbxav6pqejhpiorgzur7yznjqeoq5q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'611 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware keylogger trojan stealer family:agenttesla persistence
Link:
https://tria.ge/reports/200720-1vt7tn5nxn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads user/profile data of web browsers
Reads data files stored by FTP clients
Reads user/profile data of local email clients
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/c7623c6425b465c72470a20172fd41b82be7c0893bd0e89b348ff196a604743b

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 50627acffb6299adb50159a28e1fa7543f2520f8f71c3192bb58a71d640b88a5

AgentTesla

Executable exe c7623c6425b465c72470a20172fd41b82be7c0893bd0e89b348ff196a604743b

(this sample)

  
Dropped by
MD5 8a86f7e9e2ac0da629344b89277a9b2c
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/28807/
  
Dropped by
SHA256 50627acffb6299adb50159a28e1fa7543f2520f8f71c3192bb58a71d640b88a5

Comments