agenttesla | 8867a152f90a76d696141c7144b160b21607bed11da3aa3f0d3f0e25035ee36f

General

Target

E810B9755.exe
Size

734KB
MD5

38af3379b5555b7c97731c6229b2b8db
SHA1

95a4c92355d256cf7237ae09601902027b1e6af9
SHA256

8867a152f90a76d696141c7144b160b21607bed11da3aa3f0d3f0e25035ee36f
SHA512

389fb1b43719ad349bdb8814f8d1a641a072b4b89ea86a1043a35ff08f767361dbf5c53fded7a4208cee9ce57c80d26cbc496b4b49e1b5ba5f82e93b305d1ed6

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ashpraskills.com
Port:
587
Username:
[email protected]
Password:
TC041018$4321

Signatures

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

AgentTesla Payload 4 IoCs

resource	yara_rule
behavioral1/memory/1932-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1932-15-0x0000000000446E3E-mapping.dmp	family_agenttesla
behavioral1/memory/1932-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1932-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
268	.exe
1932	RegAsm.exe

Loads dropped DLL 3 IoCs

pid	Process
676	E810B9755.exe
268	.exe
1932	RegAsm.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

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

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

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\file = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 268 set thread context of 1932	268	.exe	31

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
676	E810B9755.exe
676	E810B9755.exe
676	E810B9755.exe
268	.exe
268	.exe
268	.exe
1932	RegAsm.exe
1932	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	676	E810B9755.exe
Token: SeDebugPrivilege	268	.exe
Token: SeDebugPrivilege	1932	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1932	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 1048	676	E810B9755.exe	24
PID 676 wrote to memory of 1048	676	E810B9755.exe	24
PID 676 wrote to memory of 1048	676	E810B9755.exe	24
PID 676 wrote to memory of 1048	676	E810B9755.exe	24
PID 1048 wrote to memory of 1504	1048	cmd.exe	26
PID 1048 wrote to memory of 1504	1048	cmd.exe	26
PID 1048 wrote to memory of 1504	1048	cmd.exe	26
PID 1048 wrote to memory of 1504	1048	cmd.exe	26
PID 676 wrote to memory of 268	676	E810B9755.exe	30
PID 676 wrote to memory of 268	676	E810B9755.exe	30
PID 676 wrote to memory of 268	676	E810B9755.exe	30
PID 676 wrote to memory of 268	676	E810B9755.exe	30
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31
PID 268 wrote to memory of 1932	268	.exe	31

C:\Users\Admin\AppData\Local\Temp\E810B9755.exe
"C:\Users\Admin\AppData\Local\Temp\E810B9755.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:676
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v file /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1048
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v file /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
    3⤵
    - Adds Run key to start application
    PID:1504
- C:\Users\Admin\Desktop\.exe
  "C:\Users\Admin\Desktop\.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:268
- - C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
    "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1932

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

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1932-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1932-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1932-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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