MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3cf7a61f0ab30656aa7dd49ad4888794833ac3ae9eaf61391c4940117a4fd7f. 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 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c3cf7a61f0ab30656aa7dd49ad4888794833ac3ae9eaf61391c4940117a4fd7f
SHA3-384 hash: 31241383f3a4470a74e2603b3560c51602d2bd8c3e84d19301cd22df1a9d615a5acddaa13794420545233dff3bae48a9
SHA1 hash: 181cc51842fd88509d956700a9ced76bdd6743c1
MD5 hash: c67bc491166752cb4a22a3bfc9fbe7ea
humanhash: bluebird-fourteen-asparagus-washington
File name:gunzipped
Download: download sample
Signature AgentTesla
Create hunting rule
File size:477'696 bytes
First seen:2020-08-05 15:18:04 UTC
Last seen:2020-08-05 16:11:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2ff2dc860b3be78716db0209b9220e29 (4 x AgentTesla, 3 x HawkEye, 2 x NetWire)
ssdeep 12288:IuAybmmRBkHgwNO+X85gTDTcp/AiuDueaJypYVwRwC6vkldSg:UybmMB501ag/TcdAXDueahwReYdSg
Threatray 11'749 similar samples on MalwareBazaar
TLSH 3DA4231AC2172966F7488C311F4F98FA2324505A1C43772A2E9DC42D3D71AE76B0BB7E
Reporter abuse_ch
Tags:AgentTesla


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: paymontly.servers.prgn.misp.co.uk
Sending IP: 185.20.50.76
From: Anatco.com <sales2@anatco.com>
Subject: - Order 28839
Attachment: scan-copy.xl.gz (contains "gunzipped")

AgentTesla SMTP exfil server:
mail.flood-protection.org:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
76
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/39755/
Detection(s):
PUA.Win.Packer.Upx-49
Create hunting rule

PUA.Win.Packer.UpxProtector-1
Create hunting rule

PUA.Win.Packer.Upolyx-12
Create hunting rule

PUA.Win.Packer.Upx-6
Create hunting rule

PUA.Win.Packer.Upx-4
Create hunting rule

PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Sending a UDP request
Reading critical registry keys
Launching the process to change network settings
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/411498
Signature
Contains functionality to detect sleep reduction / modifications
Found malware configuration
Machine Learning detection for sample
Maps a DLL or memory area into another process
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: Capture Wi-Fi password
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 harvest and steal WLAN passwords
Tries to steal Mail credentials (via file access)
Uses netsh to modify the Windows network and firewall settings
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c3cf7a61f0ab30656aa7dd49ad4888794833ac3ae9eaf61391c4940117a4fd7f/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-05 15:19:08 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=yphxuypqvmygk2vh3ve22seipfedhlb25hvpme4ryskacf5e7v7q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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AgentTesla
+ 11'739 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
upx
Link:
https://tria.ge/reports/200805-pdstzkkl96/
Behaviour
UPX packed file
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.96
Link:
https://yomi.yoroi.company/submissions/c3cf7a61f0ab30656aa7dd49ad4888794833ac3ae9eaf61391c4940117a4fd7f

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:suspicious_packer_section
Create hunting rule
Author:@j0sm1
Description:The packer/protector section names/keywords
Reference:http://www.hexacorn.com/blog/2012/10/14/random-stats-from-1-2m-samples-pe-section-names/
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 32ea8986bb89925c979795393c2ff1ad6c24b73e7f343da30ea5f7405ddf025e

AgentTesla

Executable exe c3cf7a61f0ab30656aa7dd49ad4888794833ac3ae9eaf61391c4940117a4fd7f

(this sample)

  
Dropped by
MD5 3ce734efc76b82a75d3992c58f25c2f0
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/39755/
  
Dropped by
SHA256 32ea8986bb89925c979795393c2ff1ad6c24b73e7f343da30ea5f7405ddf025e

Comments