MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b19e25b2907338e5919fb760324260035c71761de65fc94e8aaf74ed1154d6b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b19e25b2907338e5919fb760324260035c71761de65fc94e8aaf74ed1154d6b
SHA3-384 hash: 1cd5ae9ed6c1f11ab835ac3e0099a40f2e294d7c7184dc11dbb00c10a3bb9ad0ed42895332732fe9cd36de68015ae6d2
SHA1 hash: fcb53475b61857730411ad33a29e035e0ed4bedb
MD5 hash: b145feb185fae0543a2038bc197c651f
humanhash: leopard-social-grey-bluebird
File name:sco.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:783'360 bytes
First seen:2021-02-09 20:39:42 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'741 x AgentTesla, 19'604 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:5Zl98UeThii+lMH2eJBI5NhOLvHAYxBYRmHi1BpQeDGdd/QqJurqyda:Hl98xClMWeMN4vgYwRmHetGkqJp
Threatray 2'532 similar samples on MalwareBazaar
TLSH 7DF4F63222B4D656E6E91EF48C305D480EB36C0B6615A37BF95471CD6CFC923EF12A92
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
158
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
sco.exe
Verdict:
Malicious activity
Analysis date:
2021-02-09 20:40:50 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/c24806f6-d450-466b-aedd-808cc4da4210

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/116305/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Enabling autorun by creating a 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.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/603582
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
C2 URLs / IPs found in malware configuration
Found malware configuration
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)
Sigma detected: Scheduled temp file as task from temp location
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)
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 signatures2 2 Behavior Graph ID: 350802 Sample: sco.exe Startdate: 09/02/2021 Architecture: WINDOWS Score: 100 31 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->31 33 Found malware configuration 2->33 35 Multi AV Scanner detection for dropped file 2->35 37 11 other signatures 2->37 7 sco.exe 7 2->7         started        process3 file4 19 C:\Users\user\AppData\Roaming\KZUVAD.exe, PE32 7->19 dropped 21 C:\Users\user\...\KZUVAD.exe:Zone.Identifier, ASCII 7->21 dropped 23 C:\Users\user\AppData\Local\...\tmp7B40.tmp, XML 7->23 dropped 25 C:\Users\user\AppData\Local\...\sco.exe.log, ASCII 7->25 dropped 39 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->39 41 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->41 43 Injects a PE file into a foreign processes 7->43 11 sco.exe 2 7->11         started        15 schtasks.exe 1 7->15         started        signatures5 process6 dnsIp7 27 airseaalliance.com 198.136.51.123, 49740, 587 DIMENOCUS United States 11->27 29 mail.airseaalliance.com 11->29 45 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 11->45 47 Tries to steal Mail credentials (via file access) 11->47 49 Tries to harvest and steal ftp login credentials 11->49 51 2 other signatures 11->51 17 conhost.exe 15->17         started        signatures8 process9
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4b19e25b2907338e5919fb760324260035c71761de65fc94e8aaf74ed1154d6b/
Threat name:
ByteCode-MSIL.Spyware.Noon
Create hunting rule
Status:
Malicious
First seen:
2021-02-09 20:39:18 UTC
File Type:
PE (.Net Exe)
Extracted files:
44
AV detection:
20 of 29 (68.97%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jmm6ewzja4zy4wiz7n3agjbgaa24of3b3zs7zfhivl3u5uivjvvq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
10f73f3e179711ff051ab50804655bf92f0289f230c348df6f3a087a262afd93
AgentTesla
17597ccb6afea30a3cd4d4ad8d31bd2d659f72deb76c32e65820e164d80dc853
AgentTesla
4994562a8195097940cac88cff7737d8d990189acfdc2e1bc2f0133428304593
AgentTesla
61060fa22e8fe8c29f2cd7b2b4b9bc4d350fc9331a6dfcbc2f873bec00f6818d
AgentTesla
65b75cee62573656b9a894f439da073433c735e6c7bb539321194f95cd5a8074
AgentTesla
6ec4ed78cfdb01601cea079e7074810d9f1cd321dbfbd9c5c729c4855526c662
AgentTesla
b2ec3cbaca68c03cabfbd50b7b94908971b26a52e5eacd80d499844944929c1b
AgentTesla
b8b373ce2f5835b617f904b50e5e594232982967ea1a12b35bd085c83aa057bb
AgentTesla
c27ee7916b7471bc3bf38a4ce92bb3075972ec46814f3ca0d71dbe24dc495e7d
AgentTesla
e87ed8ad9f753e4de9899be1bca89baf0655588679245a73c524c737512e0a45
AgentTesla
+ 2'522 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger ransomware spyware stealer trojan
Link:
https://tria.ge/reports/210209-nerdm3f2h6/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
02b055a616b3415199888363f4f09de2961a8978eb8ee9b4a3189fb29577b72b
MD5 hash:
50ea75b9e5d99869de28d3867dbe2d3a
SHA1 hash:
3cf93c39491ac3c692cf2d437c4aa7b4cc7f743c
Link:
https://www.unpac.me/results/35cf3013-b6e4-4b56-b569-3bc7599bceff/
SH256 hash:
4179b97d43d018376ef3970a538cc95e4e54a826c0062c7cb81ee6f47815a8ca
MD5 hash:
e8b5020b4e90c0bbe780918af74acad6
SHA1 hash:
051020f12785b6a53e1f8e1f213d0bfeb8dfa39c
Link:
https://www.unpac.me/results/35cf3013-b6e4-4b56-b569-3bc7599bceff/
SH256 hash:
2b2bcf851c2b87033fd24c890c2a1de3642564f7cec7282982d96b8280baa849
MD5 hash:
befb0470c71d676cc891cba16088975d
SHA1 hash:
5b7143f97d1d656fd1cacf70949048c1951b639a
Link:
https://www.unpac.me/results/35cf3013-b6e4-4b56-b569-3bc7599bceff/
SH256 hash:
4b19e25b2907338e5919fb760324260035c71761de65fc94e8aaf74ed1154d6b
MD5 hash:
b145feb185fae0543a2038bc197c651f
SHA1 hash:
fcb53475b61857730411ad33a29e035e0ed4bedb
Link:
https://www.unpac.me/results/35cf3013-b6e4-4b56-b569-3bc7599bceff/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4b19e25b2907338e5919fb760324260035c71761de65fc94e8aaf74ed1154d6b

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:ach_AgentTesla_20200929
Create hunting rule
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Create hunting rule
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Create hunting rule
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information

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

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/116305/
  
URLhaus
https://urlhaus.abuse.ch/url/997787/

Comments