MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b619bbd70b85e5d4c8981a3e8c8b2b1f8f62c5cdccf228230d279b30ace2ae51. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b619bbd70b85e5d4c8981a3e8c8b2b1f8f62c5cdccf228230d279b30ace2ae51
SHA3-384 hash: 6e3070b5ec01282334af72a2fb6e41b051e2cda16704fc78e6cc143b2311f6eddd86c42136a51836b21a44d444384cc3
SHA1 hash: 938d5433e2444c26e01b99a3a89ae3a8d3d6caf4
MD5 hash: 3e275f27047a4c34566e40ed0be7c5f1
humanhash: london-five-spaghetti-december
File name:decode_c639385e17ee0fcdcdcada62976ab8c4c4bb85541060e168521aaf74e33f373f
Download: download sample
Signature AgentTesla
Create hunting rule
File size:173'056 bytes
First seen:2023-01-23 15:41:32 UTC
Last seen:2023-01-24 10:29:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 3072:6jefyb8JZWDsAtQZZItvR704wnAclDTDxcb3Gx6DU1SmrUPheNGW:Se/ZWDsAeGvBYAclSg6DUgJhe4
Threatray 20'072 similar samples on MalwareBazaar
TLSH T1A904296992C59913D32DC1B5C4A153480BB2A2474667F76D1EE0A8FA3F4A7C3322FC67
TrID 60.4% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.8% (.SCR) Windows screen saver (13097/50/3)
8.7% (.EXE) Win64 Executable (generic) (10523/12/4)
5.4% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
Reporter jstrosch
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
187
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
decode_c639385e17ee0fcdcdcada62976ab8c4c4bb85541060e168521aaf74e33f373f
Verdict:
Malicious activity
Analysis date:
2023-01-23 15:54:02 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/62360ce0-8c43-4b52-b4b0-b52833092e2a

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/355948/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Сreating synchronization primitives
DNS request
Creating a file in the %AppData% subdirectories
Enabling the 'hidden' option for recently created files
Sending an HTTP GET request
Reading critical registry keys
Creating a window
Setting a keyboard event handler
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
67%
Tags:
hacktool packed
Link:
https://www.filescan.io/uploads/63ceaad9447edb203a006906/reports/36721865-caf5-4378-b192-296b458ee26a/overview
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.
Malware family:
Agent Tesla
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/81fbb473-a520-4b32-ae43-e2eec295a751
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1157139
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to register a low level keyboard hook
Creates HTML files with .exe extension (expired dropper behavior)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Machine Learning detection for dropped file
Machine Learning detection for sample
May check the online IP address of the machine
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
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses the Telegram API (likely for C&C communication)
Yara detected AgentTesla
Yara detected Telegram RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 789888 Sample: decode_c639385e17ee0fcdcdca... Startdate: 23/01/2023 Architecture: WINDOWS Score: 100 28 Snort IDS alert for network traffic 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Multi AV Scanner detection for submitted file 2->32 34 4 other signatures 2->34 5 dUHOVUA.exe 14 8 2->5         started        9 decode_c639385e17ee0fcdcdcada62976ab8c4c4bb85541060e168521aaf74e33f373f.exe 17 12 2->9         started        12 dUHOVUA.exe 8 2->12         started        process3 dnsIp4 18 api.ipify.org 5->18 36 Antivirus detection for dropped file 5->36 38 Multi AV Scanner detection for dropped file 5->38 40 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 5->40 54 3 other signatures 5->54 20 api4.ipify.org 64.185.227.155, 443, 49702, 49707 WEBNXUS United States 9->20 22 api.telegram.org 149.154.167.220, 443, 49705, 49706 TELEGRAMRU United Kingdom 9->22 26 3 other IPs or domains 9->26 14 C:\Users\user\AppData\Roaming\...\dUHOVUA.exe, PE32 9->14 dropped 16 C:\Users\user\...\dUHOVUA.exe:Zone.Identifier, ASCII 9->16 dropped 42 May check the online IP address of the machine 9->42 44 Creates HTML files with .exe extension (expired dropper behavior) 9->44 46 Tries to steal Mail credentials (via file / registry access) 9->46 48 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->48 24 api.ipify.org 12->24 50 Tries to harvest and steal browser information (history, passwords, etc) 12->50 52 Installs a global keyboard hook 12->52 file5 signatures6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b619bbd70b85e5d4c8981a3e8c8b2b1f8f62c5cdccf228230d279b30ace2ae51/
Threat name:
Win32.Trojan.Lazy
Create hunting rule
Status:
Malicious
First seen:
2023-01-23 15:44:50 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
13 of 39 (33.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wym3xvylqxs5jseydi7izczld6hwfronztzcqiyne6ntblhcvziq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
01b0e10d7351007133aa2a5f1cef379b855706256fb70f327990ea142df772ad
AgentTesla
24902a43196fd02d2939443510181c165980bd71e889dcff559ca25153c76d81
AgentTesla
408218b7a9635ee8970bc60d88fbd7af411c0d37421ca87c69a6c49183d2411c
AgentTesla
4bc8d672419ca70beec67b6923dafa4509b7449fe4df575b8b6aa099d99abfee
AgentTesla
576c67bec1ed70b5521be0f66b3aac430765aae0762cab33ac1f01f044b44e50
AgentTesla
64709b83e44493c9daef902de750d67a7dc071da29b2a82a8e79e4d6998f0621
AgentTesla
a01caa0b12ac54092fc9a6506310533649ce5871eeac847b59960ef9abc8cbc1
AgentTesla
a7d2bd1e968aea0e81664aa5aabd428a57d12bc8573611543ad72a57661180b8
AgentTesla
b0e6355e5c14052a080b4a3aaaf92072a1cc04c476d4bc1bcc44a7b6abf6c9d1
AgentTesla
d9af5663675ec30a081fa6eb8c5c94e9e0b89201aaed50ee13381bf968704bcf
AgentTesla
+ 20'062 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  7/10
Tags:
collection persistence spyware stealer
Link:
https://tria.ge/reports/230123-s5cb8sea37/
Behaviour
Modifies system certificate store
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Accesses Microsoft Outlook profiles
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
b619bbd70b85e5d4c8981a3e8c8b2b1f8f62c5cdccf228230d279b30ace2ae51
MD5 hash:
3e275f27047a4c34566e40ed0be7c5f1
SHA1 hash:
938d5433e2444c26e01b99a3a89ae3a8d3d6caf4
Link:
https://www.unpac.me/results/52bba9b9-c98a-409f-802e-f055f97ca794/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b619bbd70b85/report/overview.html
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/b619bbd70b85e5d4c8981a3e8c8b2b1f8f62c5cdccf228230d279b30ace2ae51

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:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

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/355948/

Comments