MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6cf05f1629ac05fd96e9a535de21a9112c854de8e39f3cd407143759e656b71. 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: 4


Intelligence 4 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6cf05f1629ac05fd96e9a535de21a9112c854de8e39f3cd407143759e656b71
SHA3-384 hash: 85b704ada040051a8c3e49d300ce4aa4c9e9b0e868dc34d8e2be70c127d47e9bf0020b55e3918390ac06f78d0034e48a
SHA1 hash: 769d43be33063a950faaedeb1a42ebc8ee8f70cb
MD5 hash: 713472f463fe7966d1d62d1df8fe255c
humanhash: wyoming-florida-tango-undress
File name:CF&FDA Certificate Test Kits covid-19.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:601'600 bytes
First seen:2020-04-01 13:52:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:ujK2iNEXWRPV6N1dYJtHBg4zTIWL06sYAwNWEJbKESSk:gK19RtE8tS4zMWL0vYAwS
Threatray 10'856 similar samples on MalwareBazaar
TLSH 06D49C4B31EC21CFC49E89715E65FF1CA6243D225616CD0AAC53F69C643CA428AF35BE
Reporter abuse_ch
Tags:AgentTesla COVID-19 exe


Avatar
abuse_ch
COVID-19 themed malspam distributing AgentTesla:

HELO: server.clinicasom.com
Sending IP: 185.76.77.225
From: sales Trading LLC <soporte@clinicasom.com>
Subject: Re: CF&FDA Certificate Test Kits covid-19
Attachment: CFFDA Certificate Test Kits covid-19.img (contains "CF&FDA Certificate Test Kits covid-19.exe")

AgentTesla SMTP exfil server:
smtp.ge-lndustry.com:587 (208.91.198.143)

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.Inject3.37269.15666.23612.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-04-01 14:35:30 UTC
File Type:
PE (.Net Exe)
Extracted files:
15
AV detection:
27 of 31 (87.10%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=u3hql4lctlaf7wlotjjv3yq2sejmqvg6ry47htkaofbxlhtfnnyq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'846 additional samples on MalwareBazaar
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_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

img 1e1c4f8a31673279a1df1460443acaac8371e79e8393f0238fa1e23bed6667cc

AgentTesla

Executable exe a6cf05f1629ac05fd96e9a535de21a9112c854de8e39f3cd407143759e656b71

(this sample)

  
Dropped by
MD5 57884eb88844f46f6f89056c97af8f43
  
Dropped by
SHA256 1e1c4f8a31673279a1df1460443acaac8371e79e8393f0238fa1e23bed6667cc
  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high

Comments