MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99a8b22ec655fd50aa2bdb93b05e8533ec539feeffacf592cf038a6ede299314. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99a8b22ec655fd50aa2bdb93b05e8533ec539feeffacf592cf038a6ede299314
SHA3-384 hash: 05f1d8360024ace4bfb873670b96f7766fd77bc18e521f3ccb59d40c67857c30383a5fdce86b2d4fecd762b5556790ca
SHA1 hash: 8cf0375ffb4880734e8437f72b01aee504d8599c
MD5 hash: 066a679cbe4f8bb3d71cb651448b82a7
humanhash: moon-monkey-wyoming-hamper
File name:Ref-no A3_RB54PKXYCNT.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:485'888 bytes
First seen:2020-06-24 06:32:23 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:t4LMXlikFagtApy+c/8LrCXB9ZK3qfzRcTGy:OoikH6pqQJ3ilcTr
Threatray 11'299 similar samples on MalwareBazaar
TLSH 4CA4F1073B88FA03C6FC12F59AD21B8063BA5DAE3252F7D56C81A69A11C37F149127C7
Reporter abuse_ch
Tags:AgentTesla DHL exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: dhl.com
Sending IP: 95.211.208.50
From: DHL|Express|Courier <support@dhl.com>
Subject: RE: DHL单号 Shipment ARRIVAL NOTICE Ref-no: A3_RB54PKXY.CNT
Attachment: Ref-no A3_RB54PKXYCNT.pdf.z (contains "Ref-no A3_RB54PKXYCNT.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/13474/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99a8b22ec655fd50aa2bdb93b05e8533ec539feeffacf592cf038a6ede299314/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-06-24 04:04:28 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=tgulelwgkx6vbkrl3oj3axufgpwfhh7o76wplewpaofg5xrjsmka._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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918c237103937dc88a6e0124cecdd9b1e7f5ac7baf4aa9f087d664e77a963185
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9f1923c3ca039228a51c9ac5d2f584bda9b25a210b683f66e8536a72cab2751d
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a27f85891571821ba5973efd1b4c65da9d1ab31e913978475406eb258dfac5f1
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+ 11'289 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
spyware persistence keylogger trojan stealer family:agenttesla
Link:
https://tria.ge/reports/200624-zjhqgc337s/
Behaviour
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Modifies service
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

zip 18c7d663d8a4a8eb4d2b1fc13a049ab9f6619616c76b21fc209e098086d8d353

AgentTesla

Executable exe 99a8b22ec655fd50aa2bdb93b05e8533ec539feeffacf592cf038a6ede299314

(this sample)

  
Dropped by
MD5 2b247ebcf89f401f56ce03b36398c8c9
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/13474/
  
Dropped by
SHA256 18c7d663d8a4a8eb4d2b1fc13a049ab9f6619616c76b21fc209e098086d8d353

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