MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 423fe23fbd37603696146a6285bafdb4ab7bd9bfbc34b9665ffbbc5a9ea5b3c2. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 423fe23fbd37603696146a6285bafdb4ab7bd9bfbc34b9665ffbbc5a9ea5b3c2
SHA3-384 hash: 45607c2cdfbd018b9cdd5666bf15590acaa80d111243db520a57c767fd6117cd92b5a349cfa0fa8cfcf2600ce7ab76b6
SHA1 hash: 3e46d16104ef9490d477a7f8bc398e1db4d89b78
MD5 hash: 6ae3ff89e8df63ecff711c4480d53391
humanhash: london-yankee-triple-arizona
File name:KESH.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:525'312 bytes
First seen:2020-05-20 12:20:33 UTC
Last seen:2020-05-20 13:17:37 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:CS9ThUbMDWjz1E4lMlz912hjJoWxiddqqGAIEl6D:jTPIEp91UoF8El
Threatray 10'762 similar samples on MalwareBazaar
TLSH 9CB4BE2416EDD22AEEDD8A78EDA1054C3BE084EE4D4BEB4ADC59F0F5190B35398025DF
Reporter abuse_ch
Tags:AgentTesla exe geo Halkbank TUR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: ns50.kayhost.com
Sending IP: 217.116.200.66
From: HALKBANK E-mesaj <yasemin.yagmur@stroton.com.tr>
Subject: Fwd: 0894H18644-22821-33950,00-USD-SWIFT MESAJI
Attachment: SWIFT MESAJI.rar (contains "KESH.exe")

AgentTesla SMTP exfil server:
mail.devagumruk.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.SiggenNET.5.16172.3407.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-20 12:31:23 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
21 of 31 (67.74%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ii76ep55g5qdnfqunjrilox5wsvxxwn7xq2lszs77o6fvhvfwpba._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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31b91244dc7f952c94684ba63aef5d07cf85ff5844604d63390ed1d7d224459a
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a2854a29cb5800a8837404fd4333fe055b929b6e772f8bcb911907d5638e8777
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b4ee9f43edad53dbef9202bffca9688f9ea1fbdc6f4717f00fab3f350c4fd1a8
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c92f46244db023668b259560f9318b52d1b656ef86dd3d73b17d1892e7dac41c
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e740fff5806234a9e322b90ede14659ff9744565f98be7fa70da121c057ce1f9
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f33efdb24a6d54a2d5d5de0f6ebef3de78100683a4988f7f65a0d92d0f4f2455
AgentTesla
+ 10'752 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201109-8lv6rpdkyx/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Modifies service
Suspicious use of SetThreadContext
Maps connected drives based on registry
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 17b9c12dfb5313e2cbf9e76a942cb4f9fb0e98a991633888c5fcce145db4147b

AgentTesla

Executable exe 423fe23fbd37603696146a6285bafdb4ab7bd9bfbc34b9665ffbbc5a9ea5b3c2

(this sample)

  
Dropped by
MD5 4f601ecfab37fc180306b81901fa80ae
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 17b9c12dfb5313e2cbf9e76a942cb4f9fb0e98a991633888c5fcce145db4147b

Comments