MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7. 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: 17


Intelligence 17 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
SHA3-384 hash: 039437aa3c8ece384f914fa61e147c286ef8598ae65b2ac98c95dd30a0180d0a9c76906c14611c097b41a0f58247098e
SHA1 hash: 1d90e31aef69665afbdf8a91234df4d930e731bc
MD5 hash: 9cfc7c44a69192df1a21df04e48e8eb3
humanhash: kentucky-pluto-cold-sixteen
File name:1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
Download: download sample
Signature AgentTesla
Create hunting rule
File size:172'544 bytes
First seen:2023-07-10 09:37:22 UTC
Last seen:2023-07-10 10:09:16 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:fc0QpLiaQgY3xR0RI1iMJfIPidwR39xP2kkJOTo7oQx:fcbiqYQK1tJfIBxP2qM7
Threatray 4'696 similar samples on MalwareBazaar
TLSH T195F34A69A2894C12D36D4175C8B611C80BB2D107A657E36E0FA1ECF63E567C33E2F876
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 adrian__luca
Tags:AgentTesla exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
277
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
agenttesla
Create hunting rule
ID:
1
File name:
1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
Verdict:
Malicious activity
Analysis date:
2023-07-10 10:42:28 UTC
Tags:
agenttesla
Link:
https://app.any.run/tasks/0e553f08-3e00-4ff4-a469-9f3f51806418

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/413452/
Detection(s):
Win.Packed.Generic-10003641-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
Sending an HTTP GET request
Creating a window
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control hacktool lolbin packed packed replace
Link:
https://www.filescan.io/uploads/64abd17df415d4fc6f9ea2d2/reports/3038c97a-cf1d-48ee-97b0-d45a64fdc8fe/overview
Verdict:
Malicious
Labled as:
IL:Trojan.MSILZilla
Link:
https://www.hybrid-analysis.com/sample/1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
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/dec37342-eb76-4315-9a92-ca33dcf16935
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1270253
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
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
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)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1270253 Sample: sKt0sJgwmB.exe Startdate: 10/07/2023 Architecture: WINDOWS Score: 100 30 Found malware configuration 2->30 32 Antivirus / Scanner detection for submitted sample 2->32 34 Multi AV Scanner detection for submitted file 2->34 36 3 other signatures 2->36 5 sTLwKA.exe 14 7 2->5         started        9 sKt0sJgwmB.exe 17 10 2->9         started        12 sTLwKA.exe 7 2->12         started        process3 dnsIp4 18 api.ipify.org 5->18 38 Antivirus detection for dropped file 5->38 40 Multi AV Scanner detection for dropped file 5->40 42 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 5->42 44 Machine Learning detection for dropped file 5->44 20 mail.kbakr.com 162.241.27.28, 49697, 49700, 49702 UNIFIEDLAYER-AS-1US United States 9->20 22 api4.ipify.org 173.231.16.76, 443, 49696, 49701 WEBNXUS United States 9->22 24 api.ipify.org 9->24 14 C:\Users\user\AppData\Roaming\...\sTLwKA.exe, PE32 9->14 dropped 16 C:\Users\user\...\sTLwKA.exe:Zone.Identifier, ASCII 9->16 dropped 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->46 48 May check the online IP address of the machine 9->48 50 Tries to steal Mail credentials (via file / registry access) 9->50 52 Hides that the sample has been downloaded from the Internet (zone.identifier) 9->52 26 104.237.62.211, 443, 49703 WEBNXUS United States 12->26 28 api.ipify.org 12->28 54 Tries to harvest and steal browser information (history, passwords, etc) 12->54 file5 signatures6
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-07-10 09:38:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cqr2lv3y4tnxf6ch7ccbxmo4as5lvtqabivmgbd6yg4eaplzpw3q._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
216e8743347dc86b61953a60917a48669dd6d039fdcbff99ea2893959f311a23
AgentTesla
5016a34b2365d1bd3f2046169ff7292f0f45a8eebf1164e8f5dd0298f6e1efeb
AgentTesla
71f89701ea665ab429c5fabb91f89053ca165bfc489b54d963e7c4cfbb3338f3
AgentTesla
a7880f86bd0bbb436dde37febb6168a0fbc51978378c0f5fd8f024d3c6487a7c
AgentTesla
abe4e9779d399b488d7faf17febacdec241eda6ea49ee4f2c2f707876f4737d7
AgentTesla
b4808e6181c33178c778467beec7f8ce933b0ba767c4a78821e95776a0655e6c
AgentTesla
ddde47cccacd1004e6fea80b5f6914f9b6e4601c7d0a09bd0334a4533a04c847
AgentTesla
+ 4'686 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/230710-ll3azshf56/
Behaviour
outlook_win_path
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
outlook_office_path
Accesses Microsoft Outlook profiles
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
AgentTesla
Unpacked files
SH256 hash:
1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
MD5 hash:
9cfc7c44a69192df1a21df04e48e8eb3
SHA1 hash:
1d90e31aef69665afbdf8a91234df4d930e731bc
Detections:
AgentTeslaXorStringsNet
Create hunting rule
Link:
https://www.unpac.me/results/b6593390-e690-40e7-890a-137c7b367a55/
Parent samples :
71f89701ea665ab429c5fabb91f89053ca165bfc489b54d963e7c4cfbb3338f3
1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7
Malware family:
AgentTesla
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/1423a5d778e4/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

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:AgentTeslaV4
Create hunting rule
Author:Rony (r0ny_123)
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:MSIL_SUSP_OBFUSC_XorStringsNet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
Reference:https://github.com/dr4k0nia/yara-rules
Rule name:msil_susp_obf_xorstringsnet
Create hunting rule
Author:dr4k0nia
Description:Detects XorStringsNET string encryption, and other obfuscators derived from it
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.

Malspam

AgentTesla

Executable exe 1423a5d778e4db72f847f8841bb1dc04babace000a2ac3047ec1b8403d797db7

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/413452/

Comments