MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc
SHA3-384 hash: 2f26a44a99a53938b23c7200ba263631aa705e885a75c90fca69e21592b4dd73a27c512bed1d44f9c7e0297f800002ee
SHA1 hash: 86a54e72adf557aa38eb80bbece222f48cfaa99e
MD5 hash: c3a6abd0693f51c606a76e17f84d29a0
humanhash: fourteen-lactose-nebraska-papa
File name:Product-scample072.jpg
Download: download sample
Signature AgentTesla
Create hunting rule
File size:3'783'776 bytes
First seen:2020-08-25 16:08:35 UTC
Last seen:2020-08-25 19:36:25 UTC
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:MKVACoT+xvT3hUNKEfM5DV4g+Uiyb9nkSOxeQ7vA8SrokzQvnKs/4SowmmKa1gcR:nuZrgHhnHENScLvKs/4SJBxTha8MGpn
Threatray 10'251 similar samples on MalwareBazaar
TLSH 2E06AF3AB646D425D63EC131C0B855D1AA71A94B7A02CB2FB9DF03584F02BEF3F9544A
Reporter malware_traffic
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
83
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/50632/
Detection(s):
PUA.Win.Trojan.Generic-6629273-0
Create hunting rule

PUA.Win.Adware.Qjwmonkey-6892535-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Running batch commands
Launching a process
Creating a file
Creating a process from a recently created file
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a recently created process
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/449540
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
Creates an autostart registry key pointing to binary in C:\Windows
Creates multiple autostart registry keys
Drops PE files to the user root directory
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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)
Writes to foreign memory regions
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 277162 Sample: Product-scample072.jpg Startdate: 25/08/2020 Architecture: WINDOWS Score: 100 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 3 other signatures 2->56 7 Product-scample072.exe 7 2->7         started        11 pcalua.exe 1 2->11         started        13 pcalua.exe 1 1 2->13         started        16 57QwA12.exe 2->16         started        process3 dnsIp4 36 C:\Users\user\ndsg.exe, PE32 7->36 dropped 38 C:\Users\user\AppData\...\AddInProcess32.exe, PE32 7->38 dropped 40 C:\Users\user\ndsg.exe:Zone.Identifier, ASCII 7->40 dropped 42 C:\Users\user\...\Product-scample072.exe.log, ASCII 7->42 dropped 68 Drops PE files to the user root directory 7->68 18 ndsg.exe 2 7->18         started        21 cmd.exe 1 7->21         started        23 ndsg.exe 3 11->23         started        48 192.168.2.1 unknown unknown 13->48 25 conhost.exe 16->25         started        file5 signatures6 process7 signatures8 58 Writes to foreign memory regions 18->58 60 Allocates memory in foreign processes 18->60 62 Injects a PE file into a foreign processes 18->62 27 AddInProcess32.exe 2 4 18->27         started        32 reg.exe 1 1 21->32         started        34 conhost.exe 21->34         started        64 Multi AV Scanner detection for dropped file 23->64 66 Machine Learning detection for dropped file 23->66 process9 dnsIp10 46 mail.b.hostedemail.com 64.98.36.128, 49707, 587 TUCOWS-3CA Canada 27->46 44 C:\Users\user\AppData\Roaming\...\57QwA12.exe, PE32 27->44 dropped 70 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 27->70 72 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 27->72 74 Tries to steal Mail credentials (via file access) 27->74 80 5 other signatures 27->80 76 Creates multiple autostart registry keys 32->76 78 Creates an autostart registry key pointing to binary in C:\Windows 32->78 file11 signatures12
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-08-24 02:05:55 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
+ 10'241 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer family:agenttesla
Link:
https://tria.ge/reports/200825-zqr7bz3g1j/
Behaviour
JavaScript code in executable
AgentTesla Payload
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc

File information

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

Web download

AgentTesla

Executable exe 99b1b22055fc3b65d41897f793b391692268773a7a316cb7afa88c7493c7bcbc

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/50632/
  
URLhaus
https://urlhaus.abuse.ch/url/441089/
  
Delivery method
Distributed via web download

Comments