agenttesla | 23df64fa762b5942d08dc6bf6f5afc75fc932519a96070af492e237b5483747f

Analysis

max time kernel
141s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
01-11-2024 11:40

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General

Target

Quote_220072.exe
Size

1.1MB
MD5

ac900546c8bf5b3be3184502d0d2d7ba
SHA1

6427b2e160082bdb6a5b0213a3de348986f31530
SHA256

23df64fa762b5942d08dc6bf6f5afc75fc932519a96070af492e237b5483747f
SHA512

4b6bcd3c9413177629668f37160372b65c598a4c5c2ab7eae0905074761e49105b6e954fcfdccae11501120fba4a2dd59d477eab76911a6dd94e184bd7afeb56
SSDEEP

24576:T4nhDoAFBOCmg1OJnkFWsksVBNF/ZNXLGQ7WczkxFnfbP97:T+hkcOCm+OWFW+V5BNXKQKczgt

Score

10^/10

agenttesla guloader collection discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.mbarieservicesltd.com
Port:
587
Username:
[email protected]
Password:
*o9H+18Q4%;M
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla
Guloader family
guloader
Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader
Loads dropped DLL 1 IoCs

Processes:

Quote_220072.exe

pid process

1736 Quote_220072.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

pid	process
1736	Quote_220072.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

Quote_220072.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quote_220072.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quote_220072.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quote_220072.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

4 drive.google.com
5 drive.google.com
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

Quote_220072.exe

pid process

2744 Quote_220072.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

Quote_220072.exeQuote_220072.exe

pid process

1736 Quote_220072.exe
2744 Quote_220072.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

Quote_220072.exe

description pid process target process

PID 1736 set thread context of 2744 1736 Quote_220072.exe Quote_220072.exe

flow	ioc
4	drive.google.com
5	drive.google.com

pid	process
2744	Quote_220072.exe

pid	process
1736	Quote_220072.exe
2744	Quote_220072.exe

description	pid	process	target process
PID 1736 set thread context of 2744	1736	Quote_220072.exe	Quote_220072.exe

Drops file in Program Files directory 2 IoCs

Processes:

Quote_220072.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Common Files\brisantgranatens\baegersvamp.For	Quote_220072.exe
File opened for modification	C:\Program Files (x86)\Common Files\Azonic255\lithoclase.ini	Quote_220072.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

Quote_220072.exeQuote_220072.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote_220072.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Quote_220072.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

Quote_220072.exe

pid process

1736 Quote_220072.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Quote_220072.exe

description pid process

Token: SeDebugPrivilege 2744 Quote_220072.exe

pid	process
1736	Quote_220072.exe

description	pid	process
Token: SeDebugPrivilege	2744	Quote_220072.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Quote_220072.exe

description	pid	process	target process
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe
PID 1736 wrote to memory of 2744	1736	Quote_220072.exe	Quote_220072.exe

outlook_office_path 1 IoCs

Processes:

Quote_220072.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quote_220072.exe

outlook_win_path 1 IoCs

Processes:

Quote_220072.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Quote_220072.exe

C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe
"C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1736
- C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe
  "C:\Users\Admin\AppData\Local\Temp\Quote_220072.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nsy9EE0.tmp\System.dll

Filesize
12KB

MD5
d6f54d2cefdf58836805796f55bfc846

SHA1
b980addc1a755b968dd5799179d3b4f1c2de9d2d

SHA256
f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

SHA512
ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

Download Submit
memory/1736-16-0x0000000003970000-0x0000000005F38000-memory.dmp

Filesize
37.8MB

Download
memory/1736-17-0x0000000077071000-0x0000000077172000-memory.dmp

Filesize
1.0MB

Download
memory/1736-18-0x0000000077070000-0x0000000077219000-memory.dmp

Filesize
1.7MB

Download
memory/1736-19-0x0000000077070000-0x0000000077219000-memory.dmp

Filesize
1.7MB

Download
memory/1736-20-0x0000000003970000-0x0000000005F38000-memory.dmp

Filesize
37.8MB

Download
memory/1736-22-0x0000000003970000-0x0000000005F38000-memory.dmp

Filesize
37.8MB

Download
memory/2744-21-0x0000000077070000-0x0000000077219000-memory.dmp

Filesize
1.7MB

Download
memory/2744-23-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/2744-43-0x0000000000820000-0x0000000001882000-memory.dmp

Filesize
16.4MB

Download
memory/2744-44-0x0000000000820000-0x0000000000850000-memory.dmp

Filesize
192KB

Download