MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7
SHA3-384 hash: 13801b7107b8f78eedeee016140b34d169b367dbf143e26cd3aaea968924fe71da577d2ac8d4392759fd155bbc45de8b
SHA1 hash: 1088ccf369796728f14fcc72509b4349ea381c00
MD5 hash: a7904b3d5a397e19b261ae29c3ecf22c
humanhash: whiskey-single-avocado-iowa
File name:Cxkuuoxawiqwi7.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:566'272 bytes
First seen:2020-12-04 19:54:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:H4f/vHPKk6MjzJBVIKWyYiQ1U20OVjAECexGOuKw1PvFRUr16RWm:Yvik1VIKi7l0GjA7OBuhRUr1IW
Threatray 57 similar samples on MalwareBazaar
TLSH 3CC4285A3B7386DADC10C5342B15C1781AE7ACC5E889C6AE78DA7F6FB4F52D014802BD
Reporter JoulK
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
284
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/106819/
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.44647145.27540.23384.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
DNS request
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Changing the hosts file
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.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/556067
Signature
.NET source code references suspicious native API functions
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
Modifies the hosts file
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)
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 327135 Sample: Cxkuuoxawiqwi7.exe Startdate: 04/12/2020 Architecture: WINDOWS Score: 100 21 g.msn.com 2->21 35 Found malware configuration 2->35 37 Multi AV Scanner detection for dropped file 2->37 39 Multi AV Scanner detection for submitted file 2->39 41 8 other signatures 2->41 6 Cxkuuoxawiqwi7.exe 16 5 2->6         started        11 vlc.exe 2 2->11         started        13 vlc.exe 14 2 2->13         started        signatures3 process4 dnsIp5 23 smtp.yandex.ru 77.88.21.158, 49742, 49743, 587 YANDEXRU Russian Federation 6->23 25 elb097307-934924932.us-east-1.elb.amazonaws.com 54.225.66.103, 443, 49741 AMAZON-AESUS United States 6->25 33 4 other IPs or domains 6->33 15 C:\Users\user\AppData\Roaming\...\vlc.exe, PE32 6->15 dropped 17 C:\Users\user\...\vlc.exe:Zone.Identifier, ASCII 6->17 dropped 43 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 6->43 45 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 6->45 47 Tries to steal Mail credentials (via file access) 6->47 53 2 other signatures 6->53 27 smtp.yandex.com 11->27 29 nagano-19599.herokussl.com 11->29 31 api.ipify.org 11->31 19 C:\Windows\System32\drivers\etc\hosts, ASCII 11->19 dropped 49 Tries to harvest and steal ftp login credentials 11->49 51 Tries to harvest and steal browser information (history, passwords, etc) 11->51 file6 signatures7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-11-25 11:48:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
22
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Verdict:
malicious
Similar samples:
0403edbe4bb8c3eff01766349793871dddc0a31e6cb875dc35aaad03c491af64
AgentTesla
07e30b94bce95142ce6f24c33fab3d5e007e69c1555aa17263257e5748ead1cb
AgentTesla
0c2e617efd564557bce2248bb25254d7c5a091eba9529e48cadca43517431596
AgentTesla
291a081e38d4d12af7da73e4fafe9d2a9e001bc88e0f1a503037b7ffedcd4b68
AgentTesla
31b06ca8f90f735bd3b209e576db1da2a5ab7f661b58f85eaabcde2181978003
AgentTesla
3c64fe15d5f111ea7d72ee90493329d95d1c1ceb5e13237f616db5a71fd149cf
AgentTesla
5d0c908497b27de7918ac9e938a939ca63505dda638cc5fede5a6e067a4e325f
AgentTesla
85d14d8b8e5ccc28b53dca29168cd0e1aebb57f912e09c9020ea3b019174ab01
AgentTesla
b3c6ea8a1d611c88699d927c3f6c84d213b596d8d4220618b3ed4dc1bc5f5fe4
AgentTesla
bfad657014ecab9f87306e695510f55528dbd0a33302a71da260e77285e00c06
AgentTesla
+ 47 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/201204-jmnwthgpcn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Adds Run key to start application
Looks up external IP address via web service
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Drops file in Drivers directory
AgentTesla
Unpacked files
SH256 hash:
a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7
MD5 hash:
a7904b3d5a397e19b261ae29c3ecf22c
SHA1 hash:
1088ccf369796728f14fcc72509b4349ea381c00
Link:
https://www.unpac.me/results/5307d359-34fe-405d-91df-2c444b2edfc1/
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/a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7

File information

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

Web download

AgentTesla

Executable exe a4a3133ff27ac090a16fc0bccbfd3577b37af46df0da3643bf1a56a29a2923a7

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/854075/
Cape
Cape
https://www.capesandbox.com/analysis/106819/

Comments