MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a52df6fbfa534f162855c39194591cbafef749a4c24a0d3c1dc80c1125453f26. 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: a52df6fbfa534f162855c39194591cbafef749a4c24a0d3c1dc80c1125453f26
SHA3-384 hash: 0cc4549003b7cf722c9267df47c1ceaea00a454e1669ad07af57f4ab26e2538430625b8ff7e300590cd00e90cb0d860d
SHA1 hash: acf8390606054575f9a54084450c2d1230b38828
MD5 hash: a2415c6836e64fc1c9ed53febcff620e
humanhash: lake-fillet-high-pluto
File name:p9Xgnuhx4tNRjsE.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:600'064 bytes
First seen:2020-08-19 13:03:59 UTC
Last seen:2020-08-19 13:45:46 UTC
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:Yxr1QtzZnrOgplvYbuVtEbUf5VywxWwMfhQcwLIg2/:YxBQtzZnrLzvuqtEbUfDywjMfCHIg
Threatray 9'589 similar samples on MalwareBazaar
TLSH 0FD402A351652268C43C78FD810108E386B79C5A9326F67712F876FA15BE563CF2632F
Reporter abuse_ch
Tags:AgentTesla ESP exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: fimaksplastik.com
Sending IP: 185.222.57.209
From: NAFTEX<export@fimaksplastik.com>
Subject: Fwd: Pago del saldo de PO3153485
Attachment: p9Xgnuhx4tNRjsE.xz (contains "p9Xgnuhx4tNRjsE.exe")

AgentTesla SMTP exfil server:
srvc13.turhost.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
74
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/48536/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.405.5521.29094.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Using the Windows Management Instrumentation requests
Enabling autorun by 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/438084
Signature
Found malware configuration
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
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
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: 271525 Sample: p9Xgnuhx4tNRjsE.exe Startdate: 20/08/2020 Architecture: WINDOWS Score: 100 29 Found malware configuration 2->29 31 Sigma detected: Scheduled temp file as task from temp location 2->31 33 Yara detected AgentTesla 2->33 35 5 other signatures 2->35 7 p9Xgnuhx4tNRjsE.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\aFqALQ.exe, PE32 7->19 dropped 21 C:\Users\user\...\aFqALQ.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmpE98E.tmp, XML 7->23 dropped 25 C:\Users\user\...\p9Xgnuhx4tNRjsE.exe.log, ASCII 7->25 dropped 37 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->37 39 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->39 41 Injects a PE file into a foreign processes 7->41 11 p9Xgnuhx4tNRjsE.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 srvc13.turhost.com 37.230.106.17, 49695, 587 AEROTEK-ASTR Turkey 11->27 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/a52df6fbfa534f162855c39194591cbafef749a4c24a0d3c1dc80c1125453f26/
Threat name:
ByteCode-MSIL.Ransomware.TeslaCrypt
Create hunting rule
Status:
Malicious
First seen:
2020-08-19 02:02:03 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uuw7n672knhrmkcvyoiziwi4xl7posneyjfa2pa5zagbcjkfh4ta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 9'579 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200819-jcyr6jserj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
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 Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Trojan
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a52df6fbfa534f162855c39194591cbafef749a4c24a0d3c1dc80c1125453f26

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

zip 767a4fed81e0d2b5605ed8a42b4f504b4bff6a294cfeb05e1342ddb6a16360dc

AgentTesla

Executable exe a52df6fbfa534f162855c39194591cbafef749a4c24a0d3c1dc80c1125453f26

(this sample)

  
Dropped by
MD5 48c593035eb4517cd4378fa12a44ad71
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/48536/
  
Dropped by
SHA256 767a4fed81e0d2b5605ed8a42b4f504b4bff6a294cfeb05e1342ddb6a16360dc

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