agenttesla | c6665f0969a017147029e0d1a20d3a2fe5e94a95c5dd1db65cbabb7bcaa27255

Analysis

max time kernel
188s
max time network
190s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28-11-2022 09:01

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General

Target

tmp.exe
Size

576KB
MD5

0f389649ea654d411781591b7b3e06c9
SHA1

9fc4cea3aaeecfbc586810b973c70d70e0af55fc
SHA256

c6665f0969a017147029e0d1a20d3a2fe5e94a95c5dd1db65cbabb7bcaa27255
SHA512

1784007fff97e00fe55db00d3e097ef0c7085c46c3df6b94d9f46aa7b84fab95edb52ed09776449253af00e9cca2408558ea807e02f770ebcf9bb2594da526d1
SSDEEP

12288:3EkzrbETClt+4rjwPwcsQLURrTeUDcNciD+HskFgFwIyXCD3:v76Cb+4rEYcs5rK/NcXskFgqIyXw

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
host39.registrar-servers.com
Port:
587
Username:
[email protected]
Password:
payment12345

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

Processes:

RegSvcs.exe

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

Processes:

flow ioc

61 api.ipify.org
62 api.ipify.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

tmp.exe

description pid process target process

PID 5072 set thread context of 5008 5072 tmp.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

tmp.exeRegSvcs.exe

pid process

5072 tmp.exe
5072 tmp.exe
5008 RegSvcs.exe
5008 RegSvcs.exe
5008 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 5072 tmp.exe
Token: SeDebugPrivilege 5008 RegSvcs.exe

flow	ioc
61	api.ipify.org
62	api.ipify.org

description	pid	process	target process
PID 5072 set thread context of 5008	5072	tmp.exe	RegSvcs.exe

pid	process
5072	tmp.exe
5072	tmp.exe
5008	RegSvcs.exe
5008	RegSvcs.exe
5008	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	5072	tmp.exe
Token: SeDebugPrivilege	5008	RegSvcs.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

tmp.exe

description	pid	process	target process
PID 5072 wrote to memory of 4576	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 4576	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 4576	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe
PID 5072 wrote to memory of 5008	5072	tmp.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

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

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5072

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:4576

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5008

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/4576-138-0x0000000000000000-mapping.dmp

Download
memory/5008-139-0x0000000000000000-mapping.dmp

Download
memory/5008-140-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/5008-141-0x0000000005E00000-0x0000000005E66000-memory.dmp

Filesize
408KB

Download
memory/5008-142-0x00000000066C0000-0x0000000006710000-memory.dmp

Filesize
320KB

Download
memory/5072-133-0x00000000002A0000-0x0000000000336000-memory.dmp

Filesize
600KB

Download
memory/5072-134-0x0000000005340000-0x00000000058E4000-memory.dmp

Filesize
5.6MB

Download
memory/5072-135-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/5072-136-0x0000000004E30000-0x0000000004ECC000-memory.dmp

Filesize
624KB

Download
memory/5072-137-0x0000000004CC0000-0x0000000004CCA000-memory.dmp

Filesize
40KB

Download