MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9b71ca5e5e3faf0bd77b6f6d370d5aa32dffd3e2019b15624a544487895f82f5. 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: 9b71ca5e5e3faf0bd77b6f6d370d5aa32dffd3e2019b15624a544487895f82f5
SHA3-384 hash: b3337cc162fe357b4f62ab96cd3ef1a6204bfa3d3001b767b49f85c931adf7eaf25aa9f0499e69a1f642b7ef28da946d
SHA1 hash: 07386993e3bb94002b53d7937c95730217238c7c
MD5 hash: 26a8b594707d30a9578b58c7a51c64bf
humanhash: robin-july-autumn-london
File name:SAUDI ARAMCO 2.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:556'032 bytes
First seen:2020-08-19 10:12:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'454 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:k7AM5zG/6n6jPKJndnz39zfpAoYxuuU4kLeT3AErae5sZRa:cgpGl7xBAoTp48qb
Threatray 9'275 similar samples on MalwareBazaar
TLSH E0C40158B264B34FD86BCC399AA46C748760327B520BF3428D43C9EA5F1DED2CF155A2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: 707.zazomika.ml
Sending IP: 157.245.103.60
From: Ludovic,Phan <ludovic.phan@conductix.com>
Subject: RE: PO20200818,PO20200818A,PO20201808B COND
Attachment: SAUDI ARAMCO 2.rar (contains "SAUDI ARAMCO 2.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
72
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48370/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.405.2242.2789.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/437395
Signature
.NET source code contains potential unpacker
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
Moves itself to temp directory
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 access)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 271183 Sample: SAUDI ARAMCO 2.exe Startdate: 19/08/2020 Architecture: WINDOWS Score: 100 55 Found malware configuration 2->55 57 Yara detected AgentTesla 2->57 59 Yara detected AntiVM_3 2->59 61 5 other signatures 2->61 6 SAUDI ARAMCO 2.exe 3 2->6         started        10 WNRUXJ.exe 2 2->10         started        12 WNRUXJ.exe 3 2->12         started        process3 file4 27 C:\Users\user\...\SAUDI ARAMCO 2.exe.log, ASCII 6->27 dropped 63 Injects a PE file into a foreign processes 6->63 14 SAUDI ARAMCO 2.exe 2 5 6->14         started        19 SAUDI ARAMCO 2.exe 6->19         started        21 SAUDI ARAMCO 2.exe 6->21         started        23 WNRUXJ.exe 10->23         started        65 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 12->65 67 Machine Learning detection for dropped file 12->67 69 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 12->69 25 WNRUXJ.exe 2 12->25         started        signatures5 process6 dnsIp7 33 smtp.yandex.ru 77.88.21.158, 49732, 49742, 587 YANDEXRU Russian Federation 14->33 35 smtp.yandex.com 14->35 29 C:\Users\user\AppData\Roaming\...\WNRUXJ.exe, PE32 14->29 dropped 31 C:\Users\user\...\WNRUXJ.exe:Zone.Identifier, ASCII 14->31 dropped 41 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 14->41 43 Moves itself to temp directory 14->43 45 Tries to steal Mail credentials (via file access) 14->45 47 Installs a global keyboard hook 14->47 37 192.168.2.1 unknown unknown 23->37 39 smtp.yandex.com 23->39 49 Tries to harvest and steal ftp login credentials 23->49 51 Tries to harvest and steal browser information (history, passwords, etc) 23->51 53 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->53 file8 signatures9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/9b71ca5e5e3faf0bd77b6f6d370d5aa32dffd3e2019b15624a544487895f82f5/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 12:42:22 UTC
AV detection:
21 of 29 (72.41%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tny4uxs6h6xqxv33n5wtodk2umw77u7cagnrkyskkrcipck7ql2q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'265 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla persistence
Link:
https://tria.ge/reports/200819-r94tadj5m6/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.

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 7f3a434fcf5f20846c63933401d7a8836fbbbc6fddc5cb3f5d298dbc5ddc4d39

AgentTesla

Executable exe 9b71ca5e5e3faf0bd77b6f6d370d5aa32dffd3e2019b15624a544487895f82f5

(this sample)

  
Dropped by
MD5 4cc220933a397a218788ada8dbb76fca
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48370/
  
Dropped by
SHA256 7f3a434fcf5f20846c63933401d7a8836fbbbc6fddc5cb3f5d298dbc5ddc4d39

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