agenttesla | 6ff4d5e331f867bc8bc644ac4b2b38aa7fc796dd13863191fcce3467d5452ad4

General

Target

Nghgisxtb.exe
Size

407KB
MD5

913aa7a8d382f9195e8057f5592e47a9
SHA1

538ea79a057fb8c0bd4f02c697fbefcffef87947
SHA256

8879bff7f26b389b8d375928fc6095a3847f8602e00822e3f2f67705e2d85cc0
SHA512

ef731541817fac134955e1e5bd632d78e5ac6b3aa9b148b4a5fb6f1acbda91c397a6f21665d91313a9d41ad2973ac0bd26f6784885f061d30d5e139503eb0ba6
SSDEEP

12288:vTz+p0qIUakJE3iQ6ZeJfTSK7An9/dhiWSI:vTz+p0qIUakJKixZeZ8/dlS

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.asiaparadisehotel.com
Port:
587
Username:
[email protected]
Password:
^b2ycDldex$@
Email To:
[email protected]

Signatures

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Nghgisxtb.exeNghgisxtb.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fbaoy = "C:\\Users\\Admin\\AppData\\Roaming\\Fbaoy.exe"	Nghgisxtb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1791582586-1997866593-3795608343-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\TlKsFB = "C:\\Users\\Admin\\AppData\\Roaming\\TlKsFB\\TlKsFB.exe"	Nghgisxtb.exe

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

3 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

Nghgisxtb.exe

description pid process target process

PID 1120 set thread context of 4288 1120 Nghgisxtb.exe Nghgisxtb.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Nghgisxtb.exeNghgisxtb.exe

pid process

1120 Nghgisxtb.exe
4288 Nghgisxtb.exe
4288 Nghgisxtb.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Nghgisxtb.exeNghgisxtb.exe

description pid process

Token: SeDebugPrivilege 1120 Nghgisxtb.exe
Token: SeDebugPrivilege 4288 Nghgisxtb.exe

flow	ioc
3	api.ipify.org

description	pid	process	target process
PID 1120 set thread context of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe

pid	process
1120	Nghgisxtb.exe
4288	Nghgisxtb.exe
4288	Nghgisxtb.exe

description	pid	process
Token: SeDebugPrivilege	1120	Nghgisxtb.exe
Token: SeDebugPrivilege	4288	Nghgisxtb.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Nghgisxtb.exe

description	pid	process	target process
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe
PID 1120 wrote to memory of 4288	1120	Nghgisxtb.exe	Nghgisxtb.exe

C:\Users\Admin\AppData\Local\Temp\Nghgisxtb.exe
"C:\Users\Admin\AppData\Local\Temp\Nghgisxtb.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120

C:\Users\Admin\AppData\Local\Temp\Nghgisxtb.exe
C:\Users\Admin\AppData\Local\Temp\Nghgisxtb.exe
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

3

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Nghgisxtb.exe.log

Filesize
1KB

MD5
8c2da65103d6b46d8cf610b118210cf0

SHA1
9db4638340bb74f2af3161cc2c9c0b8b32e6ab65

SHA256
0e48e2efd419951e0eb9a8d942493cfdf5540d1d19ff9dae6f145fb3ebcbeeac

SHA512
3cf5a125276e264cd8478f2b92d3848fb68b96d46eb4a39e650d09df02068c274881a1c314cdfbfdcb452672fb70dd8becf3ffe9562d39919d9c4d6b07fbb614

Download Submit
memory/1120-8-0x0000000005C40000-0x0000000005C80000-memory.dmp

Filesize
256KB

Download
memory/1120-3-0x00000000059A0000-0x0000000005A32000-memory.dmp

Filesize
584KB

Download
memory/1120-9-0x0000000005C80000-0x0000000005CCC000-memory.dmp

Filesize
304KB

Download
memory/1120-1-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-5-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/1120-6-0x0000000005AB0000-0x0000000005B0A000-memory.dmp

Filesize
360KB

Download
memory/1120-7-0x0000000005950000-0x0000000005990000-memory.dmp

Filesize
256KB

Download
memory/1120-0-0x0000000000EF0000-0x0000000000F5C000-memory.dmp

Filesize
432KB

Download
memory/1120-14-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/1120-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/1120-4-0x0000000005990000-0x00000000059A0000-memory.dmp

Filesize
64KB

Download
memory/4288-21-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-15-0x0000000075140000-0x00000000758F0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-17-0x0000000004D60000-0x0000000004D70000-memory.dmp

Filesize
64KB

Download
memory/4288-16-0x0000000004F40000-0x0000000004FA6000-memory.dmp

Filesize
408KB

Download
memory/4288-19-0x0000000006610000-0x0000000006660000-memory.dmp

Filesize
320KB

Download
memory/4288-20-0x0000000006700000-0x000000000679C000-memory.dmp

Filesize
624KB

Download
memory/4288-11-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads