agenttesla | a7afb33b403ad33bf2421901d5ed9aad4e7ee362f343a86f313897713f595625

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
28-06-2024 10:00

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General

Target

4.exe
Size

849KB
MD5

1e6cb04df9502e8cb007a482c663bc9d
SHA1

f53cf395db96bca467de325491ac09cfb8d388fc
SHA256

a7afb33b403ad33bf2421901d5ed9aad4e7ee362f343a86f313897713f595625
SHA512

8c962d165a951644c0c5bf52b95159185a49657facd1f6b3c443fe3dc2af11ab6af8c3e511a37e2581e2cf3e27b7671b0bc5b7762a3fb38b3a273afee6790e57
SSDEEP

12288:hcIjd3nQIQsk3na+QidVt1+DXuY4Dc25c2YDX8Y/RN4Yx6m:hcIjUna3imz4DTg5vl

Score

10^/10

agenttesla guloader downloader keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://mail.hearing-vision.com
Port:
21
Username:
[email protected]
Password:
LILKOOLL14!

Signatures

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

Processes:

4.exe

pid process

5060 4.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 2 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
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

21 ip-api.com
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

4.exe

pid process

4892 4.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

4.exe4.exe

pid process

5060 4.exe
4892 4.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

4.exe

description pid process target process

PID 5060 set thread context of 4892 5060 4.exe 4.exe
Drops file in Windows directory 1 IoCs

Processes:

4.exe

description ioc process

File opened for modification C:\Windows\reassigned\sandi.ini 4.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

4.exe

pid process

4892 4.exe
4892 4.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

4.exe

pid process

5060 4.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

4.exe

description pid process

Token: SeDebugPrivilege 4892 4.exe

pid	process
5060	4.exe

flow	ioc
21	ip-api.com

pid	process
4892	4.exe

pid	process
5060	4.exe
4892	4.exe

description	pid	process	target process
PID 5060 set thread context of 4892	5060	4.exe	4.exe

description	ioc	process
File opened for modification	C:\Windows\reassigned\sandi.ini	4.exe

pid	process
4892	4.exe
4892	4.exe

pid	process
5060	4.exe

description	pid	process
Token: SeDebugPrivilege	4892	4.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

4.exe

description	pid	process	target process
PID 5060 wrote to memory of 4892	5060	4.exe	4.exe
PID 5060 wrote to memory of 4892	5060	4.exe	4.exe
PID 5060 wrote to memory of 4892	5060	4.exe	4.exe
PID 5060 wrote to memory of 4892	5060	4.exe	4.exe
PID 5060 wrote to memory of 4892	5060	4.exe	4.exe

C:\Users\Admin\AppData\Local\Temp\4.exe
"C:\Users\Admin\AppData\Local\Temp\4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:5060

C:\Users\Admin\AppData\Local\Temp\4.exe
"C:\Users\Admin\AppData\Local\Temp\4.exe"
2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4892

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsm7234.tmp\System.dll
Filesize
11KB

MD5
55a26d7800446f1373056064c64c3ce8

SHA1
80256857e9a0a9c8897923b717f3435295a76002

SHA256
904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8

SHA512
04b8ab7a85c26f188c0a06f524488d6f2ac2884bf107c860c82e94ae12c3859f825133d78338fd2b594dfc48f7dc9888ae76fee786c6252a5c77c88755128a5b

Download Submit
memory/4892-32-0x0000000077941000-0x0000000077A61000-memory.dmp

Filesize
1.1MB

Download
memory/4892-37-0x0000000035F30000-0x0000000035F80000-memory.dmp

Filesize
320KB

Download
memory/4892-31-0x00000000004A0000-0x00000000016F4000-memory.dmp

Filesize
18.3MB

Download
memory/4892-27-0x0000000001700000-0x000000000270D000-memory.dmp

Filesize
16.1MB

Download
memory/4892-41-0x0000000001700000-0x000000000270D000-memory.dmp

Filesize
16.1MB

Download
memory/4892-39-0x0000000036050000-0x000000003605A000-memory.dmp

Filesize
40KB

Download
memory/4892-30-0x00000000779E5000-0x00000000779E6000-memory.dmp

Filesize
4KB

Download
memory/4892-34-0x00000000004A0000-0x00000000004E2000-memory.dmp

Filesize
264KB

Download
memory/4892-38-0x0000000035F80000-0x0000000036012000-memory.dmp

Filesize
584KB

Download
memory/4892-28-0x00000000779C8000-0x00000000779C9000-memory.dmp

Filesize
4KB

Download
memory/4892-36-0x0000000035620000-0x0000000035686000-memory.dmp

Filesize
408KB

Download
memory/4892-35-0x0000000035070000-0x0000000035614000-memory.dmp

Filesize
5.6MB

Download
memory/5060-24-0x0000000004B70000-0x0000000005B7D000-memory.dmp

Filesize
16.1MB

Download
memory/5060-25-0x0000000077941000-0x0000000077A61000-memory.dmp

Filesize
1.1MB

Download
memory/5060-26-0x0000000010004000-0x0000000010005000-memory.dmp

Filesize
4KB

Download
memory/5060-29-0x0000000004B70000-0x0000000005B7D000-memory.dmp

Filesize
16.1MB

Download
memory/5060-33-0x0000000004B70000-0x0000000005B7D000-memory.dmp

Filesize
16.1MB

Download