agenttesla | cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad

Analysis

max time kernel
144s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 01:34

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General

Target

cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
Size

1.1MB
MD5

f70b90e239b44fa9d924cade648fc89e
SHA1

5a29f82ecc0e22b0798c52317c97fa208c19faf6
SHA256

cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad
SHA512

e6f77c156684bbe42c2a9018a7c130a45154ce168e6932b9c063bccf81b6e423ee826dfe0145abe75651be9a19af540e6465b31485e45211982644ba2f1f2d85
SSDEEP

24576:u4nhDoAF0alzsBukq/UWBNFUKfZNXLGQ7WczkxFnfbP9cFB:u+hkxGsfoT51hNXKQKczgeFB

Score

10^/10

agenttesla guloader discovery downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.showpiece.trillennium.biz
Port:
587
Username:
[email protected]
Password:
3KJ[T.3]fsSW
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

pid	Process
540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.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

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

Web Service

T1102

flow	ioc
20	drive.google.com
21	drive.google.com

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
34	api.ipify.org
35	api.ipify.org

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 540 set thread context of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\brisantgranatens\baegersvamp.For	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
File opened for modification	C:\Program Files (x86)\Common Files\Azonic255\lithoclase.ini	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5088	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95
PID 540 wrote to memory of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95
PID 540 wrote to memory of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95
PID 540 wrote to memory of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95
PID 540 wrote to memory of 5088	540	cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe	95

C:\Users\Admin\AppData\Local\Temp\cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
"C:\Users\Admin\AppData\Local\Temp\cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.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:540
- C:\Users\Admin\AppData\Local\Temp\cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe
  "C:\Users\Admin\AppData\Local\Temp\cf3c06fc4ac2aa1437f095c70671e38c9b8fb7c553ee19899b3183aa11843aad.exe"
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:5088

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

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nse9DD8.tmp\System.dll

Filesize
12KB

MD5
d6f54d2cefdf58836805796f55bfc846

SHA1
b980addc1a755b968dd5799179d3b4f1c2de9d2d

SHA256
f917aef484d1fbb4d723b2e2d3045cb6f5f664e61fbb3d5c577bd1c215de55d9

SHA512
ce67da936a93d46ef7e81abc8276787c82fd844c03630ba18afc3528c7e420c3228bfe82aeda083bb719f2d1314afae913362abd1e220cb364606519690d45db

Download Submit
memory/540-15-0x0000000004DC0000-0x0000000006C22000-memory.dmp

Filesize
30.4MB

Download
memory/540-17-0x00000000771E1000-0x0000000077301000-memory.dmp

Filesize
1.1MB

Download
memory/540-16-0x0000000004DC0000-0x0000000006C22000-memory.dmp

Filesize
30.4MB

Download
memory/540-18-0x0000000073E35000-0x0000000073E36000-memory.dmp

Filesize
4KB

Download
memory/540-19-0x0000000004DC0000-0x0000000006C22000-memory.dmp

Filesize
30.4MB

Download
memory/5088-20-0x0000000001A80000-0x00000000038E2000-memory.dmp

Filesize
30.4MB

Download
memory/5088-33-0x0000000000820000-0x0000000001A74000-memory.dmp

Filesize
18.3MB

Download
memory/5088-34-0x0000000001A80000-0x00000000038E2000-memory.dmp

Filesize
30.4MB

Download
memory/5088-35-0x0000000000820000-0x0000000001A74000-memory.dmp

Filesize
18.3MB

Download
memory/5088-36-0x0000000000820000-0x0000000000860000-memory.dmp

Filesize
256KB

Download
memory/5088-37-0x00000000366F0000-0x0000000036C94000-memory.dmp

Filesize
5.6MB

Download
memory/5088-38-0x0000000036580000-0x00000000365E6000-memory.dmp

Filesize
408KB

Download
memory/5088-39-0x0000000037480000-0x00000000374D0000-memory.dmp

Filesize
320KB

Download
memory/5088-40-0x00000000374D0000-0x0000000037562000-memory.dmp

Filesize
584KB

Download
memory/5088-41-0x0000000037730000-0x000000003773A000-memory.dmp

Filesize
40KB

Download