MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ecacb5a1bdcb529ca18c9a67c4cf614f66d3d6a521d21cca4c6b1ff2c982daa0. 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: ecacb5a1bdcb529ca18c9a67c4cf614f66d3d6a521d21cca4c6b1ff2c982daa0
SHA3-384 hash: c887467ff7772347ed54f2e7e7253a9b732bf6317743ea54ce0f62704716033518b8938e62d2ff7301b48d6e1bc1a5ac
SHA1 hash: 8214741db01c7012aa2496075e1e7977fdc63092
MD5 hash: 530efc0a136c7d88791e29aa399ceef9
humanhash: vermont-william-twenty-xray
File name:Image001.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:683'520 bytes
First seen:2020-07-29 11:08:23 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:QGUHoskvmroG8wAIKDnA6km3Job80mpQQMH:PUamrd8wAIKDam3aWU
Threatray 10'495 similar samples on MalwareBazaar
TLSH B1E4AD19BEE1AC16C2FF8179ADCC1D38CEACF0C751379369788AC2AF198B3619905175
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: midea.com
Sending IP: 185.222.57.157
From: 李鹏飞 Philippe Lee <pr@midea.com>
Subject: Re: Transfer Confirmation
Attachment: Image001.gz (contains "Image001.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/34783/
Detection(s):
SecuriteInfo.com.MSIL.Kryptik.VFR-1.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
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
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/402329
Signature
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
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: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 253521 Sample: Image001.exe Startdate: 29/07/2020 Architecture: WINDOWS Score: 100 24 g.msn.com 2->24 26 asf-ris-prod-neurope.northeurope.cloudapp.azure.com 2->26 32 Found malware configuration 2->32 34 Sigma detected: Scheduled temp file as task from temp location 2->34 36 Yara detected AgentTesla 2->36 38 4 other signatures 2->38 8 Image001.exe 5 2->8         started        signatures3 process4 file5 20 C:\Users\user\AppData\Local\...\tmp6EAE.tmp, XML 8->20 dropped 22 C:\Users\user\AppData\...\&startupname&.exe, PE32 8->22 dropped 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 8->40 42 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 8->42 44 Injects a PE file into a foreign processes 8->44 46 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 8->46 12 Image001.exe 2 8->12         started        16 schtasks.exe 1 8->16         started        signatures6 process7 dnsIp8 28 smtp.yandex.ru 77.88.21.158, 49736, 587 YANDEXRU Russian Federation 12->28 30 smtp.yandex.com 12->30 48 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 12->48 50 Tries to steal Mail credentials (via file access) 12->50 52 Tries to harvest and steal ftp login credentials 12->52 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 18 conhost.exe 16->18         started        signatures9 process10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ecacb5a1bdcb529ca18c9a67c4cf614f66d3d6a521d21cca4c6b1ff2c982daa0/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-07-29 09:29:28 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=5swllin5znjjzimmtjt4jt3bj5tnhvvfehjbzssmnmp7fsmc3kqa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
2e0e3218280e31876a4a2c9ea5fd0227aacd4d4e1a5aaa4969102637b70a9d00
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5ca72f1b30267136dbe5f1bfea2782a2607e13eabdf78a30a1cba50c493fa1fb
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642f3ac7ce246c87fed41bc3952ed2086187587f34a5b27270ac3c1ffca8aff3
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6c027abea40a3cafad6d1e1d80f6a0c05c77fe88b0eb91f15c3fef054a35ae67
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7f0fb6cbeb67d61d2fcf55c3e9496eee625be53db7e4e0a6321403efd9f8f7c8
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82b29aea19d46b3da79de8efa015b73dd3589353e16b73579820ab8a1a0ec077
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8de5b231add82c95e720fb340206a50034e9ac1de1108977389538f37a5be45b
AgentTesla
aabe14b147b240cb1c6bb3f2b55c5abe8126e5507c6b346a07dd426ca1da6fb1
AgentTesla
bf47e9687dd959333232b5a0c139edcb06478f59da4769ace1211c1ce06dc7b1
AgentTesla
+ 10'485 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  3/10
Tags:
n/a
Link:
https://tria.ge/reports/200729-1lqnxcrrve/
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Program crash
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/ecacb5a1bdcb529ca18c9a67c4cf614f66d3d6a521d21cca4c6b1ff2c982daa0

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 3e35da0dd3ff91790f10dd2e005d1e71323121655088ec422fe7331cb60a4425

AgentTesla

Executable exe ecacb5a1bdcb529ca18c9a67c4cf614f66d3d6a521d21cca4c6b1ff2c982daa0

(this sample)

  
Dropped by
MD5 148d7d09e3f88a8d002cdde1eb677e1a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/34783/
  
Dropped by
SHA256 3e35da0dd3ff91790f10dd2e005d1e71323121655088ec422fe7331cb60a4425

Comments