agenttesla | b0b358f5e0f4bfb12abe5066a9083f881c3b9c501029d9ce45416d36eb2e866c

General

Target

DHL AWB #7849402748,pdf.exe
Size

5.6MB
MD5

9a099cecae30cc98f819f1724c2f2a82
SHA1

e4c1308358cf300d092d2d0a9927180890ec951f
SHA256

b0b358f5e0f4bfb12abe5066a9083f881c3b9c501029d9ce45416d36eb2e866c
SHA512

caa53a4c53ee9645a29a11d4c37a7af9fa4e456a49581d4616c8520f0fe2db9c5c66e2353ced397c322c3bdf4a284981f49b17601bea27e2345b567b8774a0d7

Score

10^/10

agenttesla keylogger persistence spyware stealer trojan

Malware Config

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/1564-14-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1564-15-0x000000000044CC3E-mapping.dmp	family_agenttesla
behavioral1/memory/1564-17-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1564-18-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	AddInProcess32.exe

Executes dropped EXE 2 IoCs

pid	Process
1104	ncnc.exe
1564	AddInProcess32.exe

Loads dropped DLL 2 IoCs

pid	Process
1124	DHL AWB #7849402748,pdf.exe
1104	ncnc.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-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\nbbb = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\AppData\\Roaming\\ncnc.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1104 set thread context of 1564	1104	ncnc.exe	30

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
1124	DHL AWB #7849402748,pdf.exe
1124	DHL AWB #7849402748,pdf.exe
1124	DHL AWB #7849402748,pdf.exe
1104	ncnc.exe
1104	ncnc.exe
1104	ncnc.exe
1564	AddInProcess32.exe
1564	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1124	DHL AWB #7849402748,pdf.exe
Token: SeDebugPrivilege	1104	ncnc.exe
Token: SeDebugPrivilege	1564	AddInProcess32.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 1424	1124	DHL AWB #7849402748,pdf.exe	24
PID 1124 wrote to memory of 1424	1124	DHL AWB #7849402748,pdf.exe	24
PID 1124 wrote to memory of 1424	1124	DHL AWB #7849402748,pdf.exe	24
PID 1124 wrote to memory of 1424	1124	DHL AWB #7849402748,pdf.exe	24
PID 1424 wrote to memory of 1520	1424	cmd.exe	26
PID 1424 wrote to memory of 1520	1424	cmd.exe	26
PID 1424 wrote to memory of 1520	1424	cmd.exe	26
PID 1424 wrote to memory of 1520	1424	cmd.exe	26
PID 1124 wrote to memory of 1104	1124	DHL AWB #7849402748,pdf.exe	27
PID 1124 wrote to memory of 1104	1124	DHL AWB #7849402748,pdf.exe	27
PID 1124 wrote to memory of 1104	1124	DHL AWB #7849402748,pdf.exe	27
PID 1124 wrote to memory of 1104	1124	DHL AWB #7849402748,pdf.exe	27
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1104 wrote to memory of 1564	1104	ncnc.exe	30
PID 1564 wrote to memory of 1040	1564	AddInProcess32.exe	32
PID 1564 wrote to memory of 1040	1564	AddInProcess32.exe	32
PID 1564 wrote to memory of 1040	1564	AddInProcess32.exe	32
PID 1564 wrote to memory of 1040	1564	AddInProcess32.exe	32

C:\Users\Admin\AppData\Local\Temp\DHL AWB #7849402748,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB #7849402748,pdf.exe"
1⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nbbb /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\ncnc.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1424
- - C:\Windows\SysWOW64\reg.exe
    REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v nbbb /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\ncnc.exe"
    3⤵
    - Adds Run key to start application
    PID:1520
- C:\Users\Admin\AppData\Roaming\ncnc.exe
  "C:\Users\Admin\AppData\Roaming\ncnc.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1104
- - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
    "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - Drops file in Drivers directory
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1564
  - - C:\Windows\SysWOW64\netsh.exe
      "netsh" wlan show profile
      4⤵
      PID:1040

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/1564-14-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1564-17-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1564-18-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

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