MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b. 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: fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b
SHA3-384 hash: 73966e8b28b4939153ff99261796cd66e5c18d87ef9a7a5d86042ef7238a1efce89435dd898eee08857733b67c46ac68
SHA1 hash: 0f1dabc652cfbff53b61b5bc1f90c116d5058e95
MD5 hash: f7e4dc379ddd4b5270cb5ab2c3a87180
humanhash: mountain-triple-eleven-eight
File name:Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:720'384 bytes
First seen:2020-08-04 07:10:08 UTC
Last seen:2020-08-04 08:20:41 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'649 x AgentTesla, 19'461 x Formbook, 12'202 x SnakeKeylogger)
ssdeep 12288:oojIiqsBfg5AmrWEoMkm9DhJD3RehhtBU+YVoEyxG:rIImAkWxMP9DvR+UxLy
Threatray 10'893 similar samples on MalwareBazaar
TLSH D5E4CE1C3BE0862AF59A0FBE5C7655429D34E80B691BF38F25F5122C487A79CAC41F63
Reporter abuse_ch
Tags:AgentTesla ESP exe geo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sl2.cyberfuel.com
Sending IP: 190.0.224.87
From: Gerencia <zonacentro@locsa.com.mx>
Subject: RE: Copia de impresión de confirmación de pago USD20,784.40
Attachment: Boleta de pago por transferencia bancaria USD_20,784.40.pdf.gz (contains "Boleta de pago por transferencia bancaria USD_20,784.40.pdf.exe")

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

Intelligence

File Origin
# of uploads :
2
# of downloads :
65
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/38269/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Siggen2.53024.21064.12487.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/408771
Signature
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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: Suspicious Double Extension
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
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 01:58:00 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7sb55ok7gqu45rtht74nh264ypxyz5eujpylqpou3bhf6zslaafq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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1b3b81cd526d60f60fa1c193ba72438ec0f1c4059d5d7f195059d1aacfb453e3
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3631b6f02663cc48d6ca8a8396a168c0d0204326c8d3ff66b25e013c7e8d5f93
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4b1798ea1212bd8c50d111f5124660ca4c7288a1c11129aece16c279a11ab3b3
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4f965aee8b694528d2d11d5a80eeee466959650ffcd12b5f0fc28d3a11709e27
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946bf0933ae9952f715bb7405c52fe8ec4ef71bc5ace58859b1c3ae8d93e253d
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c13182433185c2298a137cbe333a037521b67c4e4ee6226c426c69df8e06f22b
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d1d753678c6c2a9e8957c508adc44ccd35c79592a826e973528ec146f33d558c
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e5c5c9d753512a626d7bc4e6a14191b3db75290da5046b7d4d5fd4acc2ed3460
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ec0f65afbe2adb5bccb4d4b0fa58353791deb99e42a2583828442a68af1cd235
AgentTesla
+ 10'883 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/200804-w6zpntdxtn/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Reads user/profile data of local email clients
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.66
Link:
https://yomi.yoroi.company/submissions/fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b

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

gz b57c1d411983db6ccfd47d6d077b2062ff180e06465c7063499a337d340e7486

AgentTesla

Executable exe fc83deb95f3429cec6679ff8d3ebdcc3ef8cf4944bf0b83dd4d84e5f664b000b

(this sample)

  
Dropped by
MD5 e01074b32dc3f0e129744ef87d0825aa
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b57c1d411983db6ccfd47d6d077b2062ff180e06465c7063499a337d340e7486
Cape
Cape
https://www.capesandbox.com/analysis/38269/

Comments