agenttesla | 58fce91551ddbdd915ed2cc71a2d7f2a5f354ea137365cba589affb21bfb5301

General

Target

_____S__.EXE.exe
Size

721KB
MD5

d555c9f03a1666ab0c162b497b495301
SHA1

bb9c497dbb935a0ee7ea369937a1a9939fda8a57
SHA256

58fce91551ddbdd915ed2cc71a2d7f2a5f354ea137365cba589affb21bfb5301
SHA512

0a21d6ffdc383d62c5b36df8c020a9ea4ec505a4c1e3d11f62d673a3fe746b114a2816d62d6a89ac0decb3ff140ba2c2b27bc37cf57ed6b9cdd4551e96ea6448
SSDEEP

12288:Mo9jWnGPB89f2Re0XBhcpmTywmHBjLrAT:MGjr8pd0QnwOrAT

Score

10^/10

agenttesla keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: ftp
Host:
ftp://ftp.fredy.ee
Port:
21
Username:
[email protected]
Password:
playingboyz231

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Loads dropped DLL 1 IoCs

Processes:

_____S__.EXE.exe

pid process

4848 _____S__.EXE.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
Drops file in System32 directory 1 IoCs

Processes:

_____S__.EXE.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\rnnebrs\skifteres.ind _____S__.EXE.exe
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

Processes:

_____S__.EXE.exe

pid process

3944 _____S__.EXE.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

_____S__.EXE.exe_____S__.EXE.exe

pid process

4848 _____S__.EXE.exe
3944 _____S__.EXE.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

_____S__.EXE.exe

description pid process target process

PID 4848 set thread context of 3944 4848 _____S__.EXE.exe _____S__.EXE.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

_____S__.EXE.exe

pid process

3944 _____S__.EXE.exe
3944 _____S__.EXE.exe
3944 _____S__.EXE.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

_____S__.EXE.exe

pid process

4848 _____S__.EXE.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

_____S__.EXE.exe

description pid process

Token: SeDebugPrivilege 3944 _____S__.EXE.exe

pid	process
4848	_____S__.EXE.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\rnnebrs\skifteres.ind	_____S__.EXE.exe

pid	process
3944	_____S__.EXE.exe

pid	process
4848	_____S__.EXE.exe
3944	_____S__.EXE.exe

description	pid	process	target process
PID 4848 set thread context of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe

pid	process
3944	_____S__.EXE.exe
3944	_____S__.EXE.exe
3944	_____S__.EXE.exe

pid	process
4848	_____S__.EXE.exe

description	pid	process
Token: SeDebugPrivilege	3944	_____S__.EXE.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

_____S__.EXE.exe

description	pid	process	target process
PID 4848 wrote to memory of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe
PID 4848 wrote to memory of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe
PID 4848 wrote to memory of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe
PID 4848 wrote to memory of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe
PID 4848 wrote to memory of 3944	4848	_____S__.EXE.exe	_____S__.EXE.exe

C:\Users\Admin\AppData\Local\Temp\_____S__.EXE.exe
"C:\Users\Admin\AppData\Local\Temp\_____S__.EXE.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4848

C:\Users\Admin\AppData\Local\Temp\_____S__.EXE.exe
"C:\Users\Admin\AppData\Local\Temp\_____S__.EXE.exe"
2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3944

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4436 --field-trial-handle=2244,i,11986678581565715302,451159359636456336,262144 --variations-seed-version /prefetch:8
1⤵
PID:3752

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsk91E1.tmp\System.dll
Filesize
12KB

MD5
0d7ad4f45dc6f5aa87f606d0331c6901

SHA1
48df0911f0484cbe2a8cdd5362140b63c41ee457

SHA256
3eb38ae99653a7dbc724132ee240f6e5c4af4bfe7c01d31d23faf373f9f2eaca

SHA512
c07de7308cb54205e8bd703001a7fe4fd7796c9ac1b4bb330c77c872bf712b093645f40b80ce7127531fe6746a5b66e18ea073ab6a644934abed9bb64126fea9

Download Submit
memory/3944-17-0x0000000071940000-0x00000000720F0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-16-0x00000000004B0000-0x00000000004F2000-memory.dmp

Filesize
264KB

Download
memory/3944-11-0x00000000771A8000-0x00000000771A9000-memory.dmp

Filesize
4KB

Download
memory/3944-12-0x00000000771C5000-0x00000000771C6000-memory.dmp

Filesize
4KB

Download
memory/3944-18-0x0000000039980000-0x0000000039F24000-memory.dmp

Filesize
5.6MB

Download
memory/3944-14-0x0000000077121000-0x0000000077241000-memory.dmp

Filesize
1.1MB

Download
memory/3944-27-0x0000000039900000-0x0000000039910000-memory.dmp

Filesize
64KB

Download
memory/3944-26-0x0000000071940000-0x00000000720F0000-memory.dmp

Filesize
7.7MB

Download
memory/3944-13-0x00000000004B0000-0x0000000001704000-memory.dmp

Filesize
18.3MB

Download
memory/3944-19-0x0000000039900000-0x0000000039910000-memory.dmp

Filesize
64KB

Download
memory/3944-20-0x00000000375E0000-0x0000000037646000-memory.dmp

Filesize
408KB

Download
memory/3944-21-0x0000000039910000-0x0000000039960000-memory.dmp

Filesize
320KB

Download
memory/3944-22-0x000000003A330000-0x000000003A3C2000-memory.dmp

Filesize
584KB

Download
memory/3944-23-0x000000003A410000-0x000000003A41A000-memory.dmp

Filesize
40KB

Download
memory/4848-9-0x0000000077121000-0x0000000077241000-memory.dmp

Filesize
1.1MB

Download
memory/4848-10-0x0000000073F80000-0x0000000073F87000-memory.dmp

Filesize
28KB

Download

Analysis

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