MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394. 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: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394
SHA3-384 hash: c1370a04d7dea2fb2c70a16577e3144c5e5d580c02b197473726bed8f8aa6a097a664730311ee5957e9189337115eab1
SHA1 hash: a5c3b8c99978abf607524d692c7b4fd16fab1285
MD5 hash: 09556daa40c156cffd798069a7de6a6f
humanhash: alanine-alpha-cup-nineteen
File name:SecuriteInfo.com.Win32.CrypterX-gen.22770.13743
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'027'584 bytes
First seen:2023-08-19 11:43:03 UTC
Last seen:2023-08-19 12:27:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'658 x AgentTesla, 19'469 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 24576:Ah6m8rTMI/AEDLemwZpVukItoPEJzdsRDq:2tI/5DLeZZDfIbJzmR
Threatray 5'629 similar samples on MalwareBazaar
TLSH T1EF25BFA025A74629E85AD035A4D0E4057FACE302BEDBA70D1C56F7D24507F922CEA7F3
TrID 63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.2% (.SCR) Windows screen saver (13097/50/3)
9.0% (.EXE) Win64 Executable (generic) (10523/12/4)
5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter SecuriteInfoCom
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
359
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
SecuriteInfo.com.Win32.CrypterX-gen.22770.13743
Verdict:
Malicious activity
Analysis date:
2023-08-19 11:43:12 UTC
Tags:
agenttesla stealer
Link:
https://app.any.run/tasks/08aaa7c8-ecfc-4225-b394-38cb5a772656

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
AgentTesla
Create hunting rule
Link:
https://www.capesandbox.com/analysis/443698/
Detection(s):
SecuriteInfo.com.Win32.CrypterX-gen.22770.13743.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% directory
Launching a process
Creating a file
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Unauthorized injection to a system process
Gathering data
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394
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/e370f55c-2b48-40bb-a5ed-bdbce2f17ea4
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1293847
Signature
.NET source code contains potential unpacker
Creates multiple autostart registry keys
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: MSBuild connects to smtp port
Snort IDS alert for network traffic
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 Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1293847 Sample: SecuriteInfo.com.Win32.Cryp... Startdate: 19/08/2023 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic 2->45 47 Found malware configuration 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 8 other signatures 2->51 6 SecuriteInfo.com.Win32.CrypterX-gen.22770.13743.exe 1 5 2->6         started        10 Ougcqyvrhf.exe 5 2->10         started        12 Ougcqyvrhf.exe 4 2->12         started        14 2 other processes 2->14 process3 file4 31 C:\Users\user\AppData\...\Ougcqyvrhf.exe, PE32 6->31 dropped 67 Creates multiple autostart registry keys 6->67 69 Writes to foreign memory regions 6->69 71 Injects a PE file into a foreign processes 6->71 16 MSBuild.exe 17 4 6->16         started        73 Multi AV Scanner detection for dropped file 10->73 75 Machine Learning detection for dropped file 10->75 21 MSBuild.exe 10->21         started        23 MSBuild.exe 12->23         started        25 conhost.exe 14->25         started        27 conhost.exe 14->27         started        signatures5 process6 dnsIp7 33 mail.exceltruea.com 162.241.27.28, 49723, 49761, 49765 UNIFIEDLAYER-AS-1US United States 16->33 35 api4.ipify.org 173.231.16.76, 443, 49722, 49734 WEBNXUS United States 16->35 37 api.ipify.org 16->37 29 C:\Users\user\AppData\Roaming\...\wSStSI.exe, PE32 16->29 dropped 53 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 16->53 55 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->55 57 May check the online IP address of the machine 16->57 59 Creates multiple autostart registry keys 16->59 39 api.ipify.org 21->39 41 64.185.227.156, 443, 49763 WEBNXUS United States 23->41 43 api.ipify.org 23->43 61 Tries to steal Mail credentials (via file / registry access) 23->61 63 Tries to harvest and steal browser information (history, passwords, etc) 23->63 65 Hides that the sample has been downloaded from the Internet (zone.identifier) 23->65 file8 signatures9
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-08-19 08:20:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
25 of 38 (65.79%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=546t2w4ytoed3dhpsdy6f5amdrzcanzzbwyly422kusrbr4gooka._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
3c72c81670212773e9f2c8057bef5b79663705b99d7136b3528f4fb1346ed77c
AgentTesla
485b45513f839ff3c972cbd2434273388b87c070c8c6125a8462aeabe2fb96d5
AgentTesla
65297d5ef6acfa78d0ef28f4b7d6086bad8538ab34152887348fbb3cb1df79c4
AgentTesla
68d7bd6dc7ce2ada6af865682185e9f2c33c897ec3191f0d6127d3654e69b4a1
AgentTesla
a5301092e1f1fc43f920e0901771c2fe86a781d1821349b4aedc98efd9fea546
AgentTesla
caca5d5339d47737b3e7995ae6bed4b6c2f92a88f7368020726e6ab94726b2eb
AgentTesla
eb2ea034a42d0f38e56cb044d0430fc69da6a5d28cedea28527326ddbccd8f26
AgentTesla
f865712074af18fd3e39087342df5c158f0ae596a753eaedc0ddd724ce231d95
AgentTesla
+ 5'619 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  6/10
Tags:
persistence
Link:
https://tria.ge/reports/230819-nvmb8sba4z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Unpacked files
SH256 hash:
134d3dbc5c05d1b1828bc5e2ea7f26b4ebdc2cd69cb6d2450a0562ec4de8840c
MD5 hash:
b9c3ec6f1b7e4566d1f394fbb54ace27
SHA1 hash:
ebbab7bff91d0c90bcabe40e090188de45561212
Link:
https://www.unpac.me/results/edcab1cb-9237-487e-b701-3963efbdd718/
SH256 hash:
e31337ed1e7caca78410edf3d3ab902086c632dd4d05e6490b63695dcc79e64b
MD5 hash:
9b7bc3379e93bae4d81bf3bb3e7a1453
SHA1 hash:
b40c149784940f64e8d879cef3c7db994ce77e25
Detections:
AgentTesla
Create hunting rule
Link:
https://www.unpac.me/results/edcab1cb-9237-487e-b701-3963efbdd718/
Parent samples :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 hash:
0f3f199352a5dea4c4cdfae20e6a1a3b46481c68a58db154dcc7470db3ac70c5
MD5 hash:
5904ab6a520a24d6e453a72419f46d08
SHA1 hash:
5a7f8adfd1d2bf1aeb5fe89d122941dcb5f5cdfc
Link:
https://www.unpac.me/results/edcab1cb-9237-487e-b701-3963efbdd718/
SH256 hash:
595acf11ebdd4fe32e0d76d07fa46e353d725c54e4f5ce02cc4c80096bc5ae87
MD5 hash:
0b5f438e8947a9fcb65e85f6c6822555
SHA1 hash:
29b996a19b104532b1eae3b8a01b797c90661fbb
Link:
https://www.unpac.me/results/edcab1cb-9237-487e-b701-3963efbdd718/
SH256 hash:
ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394
MD5 hash:
09556daa40c156cffd798069a7de6a6f
SHA1 hash:
a5c3b8c99978abf607524d692c7b4fd16fab1285
Link:
https://www.unpac.me/results/edcab1cb-9237-487e-b701-3963efbdd718/
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ef3d3d5b989b/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/ef3d3d5b989b883d8cef90f1e2f40c1c722037390db0bc735a552510c7867394

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
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.

Cape
Cape
https://www.capesandbox.com/analysis/443698/

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