MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38aa6ce584971bec4bcc91ac05fd05ac08ad5289236c5b332a5782e83df8e578. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38aa6ce584971bec4bcc91ac05fd05ac08ad5289236c5b332a5782e83df8e578
SHA3-384 hash: b28d98659c40c2162e8616d8bca3c2cf284be84c48767d7ee8cf4fd59ccf7b24f609abe874ffa6c41e0169c913a3edc3
SHA1 hash: 086beef2db5d9d89ff0d4c54b0d8a2235ed3c30f
MD5 hash: 02560028dfcdedc12d0935646cf8c647
humanhash: zulu-venus-happy-freddie
File name:Invoice.xls.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:532'992 bytes
First seen:2020-07-11 16:40:47 UTC
Last seen:2020-07-11 17:59:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:RquFhtwHcFCrLnh525mau9dzKiw5M3fM3GC76:Rq5Hcsr7h5251u9dzKZQmW
Threatray 10'625 similar samples on MalwareBazaar
TLSH BEB4018227BDA701DC7B5BF07DA01212C7767A166922F99D4ED131DE0C26F409BA0FA7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: atomicka.localdomain
Sending IP: 202.52.134.122
From: Sharon So <gopi@alangroups.com>
Subject: Confirm Invoices For Payment Purpose
Attachment: Invoice.xls.pdf (contains "Invoice.xls.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
92
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/24781/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.34153345.24410.6360.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
Using the Windows Management Instrumentation requests
Enabling autorun with Startup directory
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/38aa6ce584971bec4bcc91ac05fd05ac08ad5289236c5b332a5782e83df8e578/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-07-11 08:53:59 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hcvgzzmes4n6ys6msgwal7ifvqek2uujenwfwmzkk6boqppy4v4a._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'615 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/200711-2bk4d21yfx/
Behaviour
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Reads data files stored by FTP clients
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 e837bf205634eceda09b8b78f49d41fbd7a9d881801bceef361181da3bc65092

AgentTesla

Executable exe 38aa6ce584971bec4bcc91ac05fd05ac08ad5289236c5b332a5782e83df8e578

(this sample)

  
Dropped by
MD5 b23a67e178422f25d6c599daf0cb0c50
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/24781/
  
Dropped by
SHA256 e837bf205634eceda09b8b78f49d41fbd7a9d881801bceef361181da3bc65092

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