agenttesla | 6d033582691fbfed1308554793024626bcc07d07e904aca0d26f93f2a083893d

General

Target

INV01562.pdf.exe
Size

997KB
MD5

68903a58dc8c61f5b9c13ddf753be9d5
SHA1

1f91c9345407ec20fe08243ffea1db32c8d7fb27
SHA256

6d033582691fbfed1308554793024626bcc07d07e904aca0d26f93f2a083893d
SHA512

00deaad5b6265600c733547f83c58bf668db884656aff28af6a4dcc671fa5764d568551bcc3e37970d132374488163f9dcb4b3eb30f621e6836e6cb7c41a7536
SSDEEP

12288:ADZ08bolxtBHkQMGKx58qTt5MpfMBARLd5h15sHogdEkBPbQpqJ/d2TU0:TtmsKxgpfMCRR5h15sIg6kBPYQP0

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.frontierfulfillment.com.my
Port:
587
Username:
[email protected]
Password:
5_8B6kjVm
Email To:
[email protected]

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	INV01562.pdf.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FndrE = "C:\\Users\\Admin\\AppData\\Roaming\\FndrE\\FndrE.exe"	RegSvcs.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
44	api.ipify.org
45	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4340 set thread context of 1032	4340	INV01562.pdf.exe	91

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4760	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	RegSvcs.exe
1032	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4340 wrote to memory of 4760	4340	INV01562.pdf.exe	89
PID 4340 wrote to memory of 4760	4340	INV01562.pdf.exe	89
PID 4340 wrote to memory of 4760	4340	INV01562.pdf.exe	89
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91
PID 4340 wrote to memory of 1032	4340	INV01562.pdf.exe	91

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-919254492-3979293997-764407192-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\INV01562.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\INV01562.pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4340
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmeWsT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF6B4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4760
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1032

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF6B4.tmp

Filesize
1KB

MD5
66801e6926b3c541eb4eccfea33478b0

SHA1
1fba899a85186ae2dfb44868e4c36b90c5032949

SHA256
43f88e23dbfb196dbf055bbea71e4da32f36c490dc87e0e5147b37936743d1a1

SHA512
72894169d43530c1c6796756e389643dccb279c3c2d6b612a5a972e750e94965d071b97a1fc0921a9695fd1b1fd3e6e349aee679ec3fe01adb44ce5e22156b5c

Download Submit
memory/1032-25-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/1032-24-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/1032-23-0x0000000006A40000-0x0000000006A90000-memory.dmp

Filesize
320KB

Download
memory/1032-21-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/1032-20-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/1032-19-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/1032-16-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/4340-5-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/4340-6-0x0000000004C60000-0x0000000004C6A000-memory.dmp

Filesize
40KB

Download
memory/4340-10-0x00000000027A0000-0x00000000027B0000-memory.dmp

Filesize
64KB

Download
memory/4340-11-0x00000000079D0000-0x0000000007A4E000-memory.dmp

Filesize
504KB

Download
memory/4340-12-0x00000000078B0000-0x00000000078F2000-memory.dmp

Filesize
264KB

Download
memory/4340-8-0x0000000004F10000-0x0000000004F1C000-memory.dmp

Filesize
48KB

Download
memory/4340-7-0x0000000004E40000-0x0000000004E96000-memory.dmp

Filesize
344KB

Download
memory/4340-9-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4340-18-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4340-0-0x00000000744C0000-0x0000000074C70000-memory.dmp

Filesize
7.7MB

Download
memory/4340-4-0x0000000004DA0000-0x0000000004E32000-memory.dmp

Filesize
584KB

Download
memory/4340-3-0x0000000005350000-0x00000000058F4000-memory.dmp

Filesize
5.6MB

Download
memory/4340-2-0x0000000004CE0000-0x0000000004D7C000-memory.dmp

Filesize
624KB

Download
memory/4340-1-0x00000000001B0000-0x00000000002B0000-memory.dmp

Filesize
1024KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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