MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af. 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: 11


Intelligence 11 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af
SHA3-384 hash: c21ecbeaa20453845c0e03812fa6e05203913aad9833a45a217a5f94c3c9557135b62bfffd15e81b4aded1c9b4c0593c
SHA1 hash: 7b9df50b52ffb715b30d280e24c0320dd47fd821
MD5 hash: 0b2fb8e1ce2faee33ecc4eb8d73df00d
humanhash: jersey-sad-hawaii-sweet
File name:kelvin.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:37'888 bytes
First seen:2021-04-01 07:23:54 UTC
Last seen:2021-04-01 10:46:08 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 768:YUMMn8sFp8zKlDp4CxZTaGflqF48o5ytWnTJ0rZjD0I3thLugrq6Hk7ilVwsigQa:YjrsFpVlllxGF48o5ytWnTJ0rZjD0I3G
Threatray 3'626 similar samples on MalwareBazaar
TLSH 0503C55C32D0C198E43EFE7AEED9F95653BD9361280246CA2D84672A4D41781CBE23B7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing unidentified malware:

From: Majid Farahani<aster.chan@vps-b4a8c633.vps.ovh.ca>
Reply-To: Majid Farahani<pramod@heaxagro.com>
Subject: Purchase Order - PO101341 - Mezotic General Trading
Attachment: Purchase Order PO101341.zip (contains "kelvin.exe")

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
kelvin.exe
Verdict:
Malicious activity
Analysis date:
2021-04-01 07:28:29 UTC
Tags:
trojan
Link:
https://app.any.run/tasks/9f25b5a6-5f61-4e00-b57b-16cdfcf18cd7

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTeslaV3
Create hunting rule
Link:
https://www.capesandbox.com/analysis/130506/
Detection(s):
Win.Dropper.Nanocore-9831995-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a window
Sending a UDP request
DNS request
Creating a file
Moving a recently created file
Sending an HTTP GET request to an infection source
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/661889
Signature
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 379880 Sample: kelvin.exe Startdate: 01/04/2021 Architecture: WINDOWS Score: 100 34 mail.sibsuifur.ru 2->34 40 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->40 42 Found malware configuration 2->42 44 Multi AV Scanner detection for submitted file 2->44 46 4 other signatures 2->46 7 kelvin.exe 15 8 2->7         started        12 winfiles.exe 14 7 2->12         started        14 winfiles.exe 2 2->14         started        signatures3 process4 dnsIp5 36 asdcqwdwqx.gq 104.21.15.11, 49721, 49740, 80 CLOUDFLARENETUS United States 7->36 30 C:\Users\user\AppData\...\gqv5ypqz.newcfg, XML 7->30 dropped 32 C:\Users\user\AppData\...\kelvin.exe.log, ASCII 7->32 dropped 48 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 7->48 50 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->50 52 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->52 16 kelvin.exe 2 5 7->16         started        54 Multi AV Scanner detection for dropped file 12->54 56 Machine Learning detection for dropped file 12->56 20 winfiles.exe 2 12->20         started        22 winfiles.exe 12->22         started        58 Injects a PE file into a foreign processes 14->58 24 winfiles.exe 2 14->24         started        file6 signatures7 process8 file9 26 C:\Users\user\AppData\...\winfiles.exe, PE32 16->26 dropped 28 C:\Users\...\winfiles.exe:Zone.Identifier, ASCII 16->28 dropped 38 Hides that the sample has been downloaded from the Internet (zone.identifier) 16->38 signatures10
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=h3hwg2qnbuezq7mgd45uoasqoqxbun3xlvkq4komuj23jfm33gxq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 3'616 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/210401-3bmtj2ljvj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Maps connected drives based on registry
Checks BIOS information in registry
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af
MD5 hash:
0b2fb8e1ce2faee33ecc4eb8d73df00d
SHA1 hash:
7b9df50b52ffb715b30d280e24c0320dd47fd821
Link:
https://www.unpac.me/results/84f08cda-b814-4303-944c-64c5905d4c1a/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af

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:INDICATOR_SUSPICIOUS_Stomped_PECompilation_Timestamp_InTheFu
Create hunting rule
Author:ditekSHen
Description:Detect executables with stomped PE compilation timestamp that is greater than local current time

File information

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

Malspam

AgentTesla

zip 57f62ce00cc4f7b78f7bfcc9c06468fab7a17ce5aa69e8f7d51fe60c4e8d4ae3

AgentTesla

Executable exe 3ecf636a0d0d09987d861f3b470250742e1a37775d550e29cca275b4959bd9af

(this sample)

  
Dropped by
MD5 df09c653555df27dabb2496e98c37386
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/130506/
  
Dropped by
SHA256 57f62ce00cc4f7b78f7bfcc9c06468fab7a17ce5aa69e8f7d51fe60c4e8d4ae3

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