agenttesla | 510b5fe7628cdd6f15e04907dca1cac201192853e26be4ee279b2d8f90c4e25c

General

Target

AWB070820206533.exe
Size

690KB
MD5

3dfec10d4f1fe6f29a6b81c2c6501be2
SHA1

185e5ecf817c7e5c65356b301fb7e23c96567dae
SHA256

510b5fe7628cdd6f15e04907dca1cac201192853e26be4ee279b2d8f90c4e25c
SHA512

f5aa17fdc3eeb5ccad123749a16f94122554cb1c1d5207c5e8a75363f34991831483b13f4f31b34d111bdce49535dc4a6703e3ee2d9198cc3721322b08e4b107

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/1596-14-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1596-15-0x0000000000446E3E-mapping.dmp	family_agenttesla
behavioral1/memory/1596-17-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/1596-18-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

Executes dropped EXE 2 IoCs

pid	Process
1864	.exe
1596	RegAsm.exe

Loads dropped DLL 3 IoCs

pid	Process
1500	AWB070820206533.exe
1864	.exe
1596	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
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\neme = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\Desktop\\.exe"	reg.exe
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1864 set thread context of 1596	1864	.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
1500	AWB070820206533.exe
1500	AWB070820206533.exe
1500	AWB070820206533.exe
1864	.exe
1864	.exe
1864	.exe
1596	RegAsm.exe
1596	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1500	AWB070820206533.exe
Token: SeDebugPrivilege	1864	.exe
Token: SeDebugPrivilege	1596	RegAsm.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1596	RegAsm.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 1500 wrote to memory of 1020	1500	AWB070820206533.exe	24
PID 1500 wrote to memory of 1020	1500	AWB070820206533.exe	24
PID 1500 wrote to memory of 1020	1500	AWB070820206533.exe	24
PID 1500 wrote to memory of 1020	1500	AWB070820206533.exe	24
PID 1020 wrote to memory of 1064	1020	cmd.exe	26
PID 1020 wrote to memory of 1064	1020	cmd.exe	26
PID 1020 wrote to memory of 1064	1020	cmd.exe	26
PID 1020 wrote to memory of 1064	1020	cmd.exe	26
PID 1500 wrote to memory of 1864	1500	AWB070820206533.exe	28
PID 1500 wrote to memory of 1864	1500	AWB070820206533.exe	28
PID 1500 wrote to memory of 1864	1500	AWB070820206533.exe	28
PID 1500 wrote to memory of 1864	1500	AWB070820206533.exe	28
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31
PID 1864 wrote to memory of 1596	1864	.exe	31

C:\Users\Admin\AppData\Local\Temp\AWB070820206533.exe
"C:\Users\Admin\AppData\Local\Temp\AWB070820206533.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v neme /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1020
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v neme /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\Desktop\.exe"
    3⤵
    - Adds Run key to start application
    PID:1064
- 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:1864
- - 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:1596

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/1596-14-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1596-17-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1596-18-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

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