agenttesla | 3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd

General

Target

Lmnfh.exe
Size

13KB
MD5

7e1cb553519f23b3e61ed341f1890763
SHA1

10e36f4053b749a884af17e3d48fad1b9f417ed1
SHA256

3757e17c90a0533f757b3ab31ae4886f55a34f3af775df5eb5e14982bb7dfcfd
SHA512

7ffaff468568990936a3b1b663df1c9c79a7ae95edfbf811ab84dfa67475ac4cae2a424667509ba11fcf2048dfdcfc338778cebf9528faf2a4fcfb39e1fe10a1

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.pakbusiness.com.pk
Port:
587
Username:
[email protected]
Password:
info*123#
Email To:
[email protected]

Signatures

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

AgentTeslaV3 5 IoCs

resource	yara_rule
behavioral1/memory/1508-64-0x0000000000400000-0x000000000043A000-memory.dmp	AgentTeslaV3
behavioral1/memory/1508-66-0x0000000000400000-0x000000000043A000-memory.dmp	AgentTeslaV3
behavioral1/memory/1508-68-0x0000000000400000-0x000000000043A000-memory.dmp	AgentTeslaV3
behavioral1/memory/1508-72-0x0000000000400000-0x000000000043A000-memory.dmp	AgentTeslaV3
behavioral1/memory/1508-70-0x0000000000400000-0x000000000043A000-memory.dmp	AgentTeslaV3

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Lmnfh.exe

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
T1081
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
T1081
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
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lmnfh.exe
Key opened	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lmnfh.exe
Key opened	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lmnfh.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows\CurrentVersion\Run\PDF = "\"C:\\Users\\Admin\\AppData\\Roaming\\Adobe\\PDF.exe\""	Lmnfh.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1564 set thread context of 1508	1564	Lmnfh.exe	32

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1500	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1564	Lmnfh.exe
1508	Lmnfh.exe
1508	Lmnfh.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1564	Lmnfh.exe
Token: SeDebugPrivilege	1508	Lmnfh.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1564 wrote to memory of 324	1564	Lmnfh.exe	29
PID 1564 wrote to memory of 324	1564	Lmnfh.exe	29
PID 1564 wrote to memory of 324	1564	Lmnfh.exe	29
PID 1564 wrote to memory of 324	1564	Lmnfh.exe	29
PID 324 wrote to memory of 1500	324	cmd.exe	31
PID 324 wrote to memory of 1500	324	cmd.exe	31
PID 324 wrote to memory of 1500	324	cmd.exe	31
PID 324 wrote to memory of 1500	324	cmd.exe	31
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32
PID 1564 wrote to memory of 1508	1564	Lmnfh.exe	32

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lmnfh.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Lmnfh.exe

C:\Users\Admin\AppData\Local\Temp\Lmnfh.exe
"C:\Users\Admin\AppData\Local\Temp\Lmnfh.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout 10
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:324
- - C:\Windows\SysWOW64\timeout.exe
    timeout 10
    3⤵
    - Delays execution with timeout.exe
    PID:1500
- C:\Users\Admin\AppData\Local\Temp\Lmnfh.exe
  C:\Users\Admin\AppData\Local\Temp\Lmnfh.exe
  2⤵
  - Drops file in Drivers directory
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1508

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1508-66-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-68-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-74-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

Filesize
4KB

Download
memory/1508-73-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-70-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-72-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-62-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-64-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1508-60-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1564-54-0x0000000074820000-0x0000000074F0E000-memory.dmp

Filesize
6.9MB

Download
memory/1564-55-0x0000000001120000-0x0000000001128000-memory.dmp

Filesize
32KB

Download
memory/1564-59-0x0000000004800000-0x000000000484C000-memory.dmp

Filesize
304KB

Download
memory/1564-58-0x00000000010A0000-0x00000000010E2000-memory.dmp

Filesize
264KB

Download
memory/1564-57-0x0000000000340000-0x00000000003CA000-memory.dmp

Filesize
552KB

Download
memory/1564-56-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download

Analysis

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