agenttesla | 544ccf26cf0038cc8d76b952e349f3e49db27e4d2cdc89ea72fa2fb8e8996038

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
19/11/2022, 04:30

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General

Target
Amended Purchase Order.exe
Size 491KB
Sample221119-e4tcgahe81
SHA256 544ccf26cf0038cc8d76b952e349f3e49db27e4d2cdc89ea72fa2fb8e8996038
MD5 9086933fb695c36c4894adf26d03adbe
SHA1 f3c692ac88342c6439c6391a880216b014d15ed4
SHA512 b244c4ce33ae3bd9ffd577e26e4c6f2e881a9136c5a43434454dfddcfac697e39e788b8a96b3c058af540f0df692a676fc1b97f71b4c47cc6f47dc55848d5437
SSDEEP 12288:vLwnhIuK0sP0xxKhRhN7XdpfbUiVjRk+Ms+LaAtjSJ20Jdi:vLsIkXKfhZXvz1++Ms+mhc0J
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
webmail.jackbarber.com
Port
587
Username
[email protected]
Password
kJr=Jb5MV.7h
Email to
[email protected]

Signatures

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\25AC4C149C01483D9E80F8812CFBE96F = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Amended Purchase Order.exe\""	Amended Purchase Order.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\APP = "C:\\Users\\Admin\\AppData\\Roaming\\APP\\APP.exe"	CasPol.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
16	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4492 set thread context of 4028	4492	Amended Purchase Order.exe	82

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4028	CasPol.exe
4028	CasPol.exe
4028	CasPol.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4492	Amended Purchase Order.exe
Token: SeDebugPrivilege	4028	CasPol.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82
PID 4492 wrote to memory of 4028	4492	Amended Purchase Order.exe	82

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	CasPol.exe

C:\Users\Admin\AppData\Local\Temp\Amended Purchase Order.exe
"C:\Users\Admin\AppData\Local\Temp\Amended Purchase Order.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4492
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
  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:4028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/4028-134-0x0000000000400000-0x000000000043C000-memory.dmp

Download

memory/4028-137-0x0000000005780000-0x0000000005D24000-memory.dmp

Download

memory/4028-138-0x00000000051D0000-0x000000000526C000-memory.dmp

Download

memory/4028-139-0x0000000005F10000-0x0000000005F76000-memory.dmp

Download

memory/4028-140-0x0000000006810000-0x0000000006860000-memory.dmp

Download

memory/4028-141-0x00000000066D0000-0x0000000006762000-memory.dmp

Download

memory/4028-142-0x0000000006610000-0x000000000661A000-memory.dmp

Download

memory/4492-132-0x000002C911110000-0x000002C911190000-memory.dmp

Download

memory/4492-133-0x00007FF812090000-0x00007FF812B51000-memory.dmp

Download

memory/4492-136-0x00007FF812090000-0x00007FF812B51000-memory.dmp

Download