agenttesla | a789bece61cc58a17f08c238e3bce39fd77fe2a1cb228af4fe17983341e5b7e9

General

Target

PI-2006009 TRUONG THINH.pdf.exe
Size

433KB
MD5

9bc66f36baedd02eb6b55e391d90b324
SHA1

aaa6786ed70237361fb28250da350181d0fd28fe
SHA256

4b1a13f1b1a0bff19df63d1ebf93a2c1c390896b77db3b724a2e5c03f6007d81
SHA512

027dbf3d56939ad0d7f4bae865863e9da23d3be4278b2e7a257b8c08b135390322b298c4bece43cda407c6eeec07c4f41a5d5b72bcee4018c65b6530aa3f462e

Score

10^/10

agenttesla collection evasion keylogger persistence rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.microtechlab.in
Port:
587
Username:
[email protected]
Password:
pune@123

Signatures

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

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/952-63-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/952-64-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/952-65-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/952-66-0x000000000044CF5E-mapping.dmp	family_agenttesla
behavioral1/memory/952-68-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/952-70-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/1492-56-0x0000000005250000-0x00000000052A8000-memory.dmp	rezer0

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows\CurrentVersion\Run\CpSnJ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\CpSnJ\\CpSnJ.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exe

description pid process target process

PID 1492 set thread context of 952 1492 PI-2006009 TRUONG THINH.pdf.exe RegSvcs.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

2024 schtasks.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

732 REG.exe

description	pid	process	target process
PID 1492 set thread context of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe

pid	process
2024	schtasks.exe

pid	process
732	REG.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

pid	process
1492	PI-2006009 TRUONG THINH.pdf.exe
1492	PI-2006009 TRUONG THINH.pdf.exe
1492	PI-2006009 TRUONG THINH.pdf.exe
1492	PI-2006009 TRUONG THINH.pdf.exe
952	RegSvcs.exe
952	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1492 PI-2006009 TRUONG THINH.pdf.exe
Token: SeDebugPrivilege 952 RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1492	PI-2006009 TRUONG THINH.pdf.exe
Token: SeDebugPrivilege	952	RegSvcs.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

PI-2006009 TRUONG THINH.pdf.exeRegSvcs.exe

description	pid	process	target process
PID 1492 wrote to memory of 2024	1492	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 1492 wrote to memory of 2024	1492	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 1492 wrote to memory of 2024	1492	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 1492 wrote to memory of 2024	1492	PI-2006009 TRUONG THINH.pdf.exe	schtasks.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 1476	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 1492 wrote to memory of 952	1492	PI-2006009 TRUONG THINH.pdf.exe	RegSvcs.exe
PID 952 wrote to memory of 732	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 732	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 732	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 732	952	RegSvcs.exe	REG.exe
PID 952 wrote to memory of 1944	952	RegSvcs.exe	netsh.exe
PID 952 wrote to memory of 1944	952	RegSvcs.exe	netsh.exe
PID 952 wrote to memory of 1944	952	RegSvcs.exe	netsh.exe
PID 952 wrote to memory of 1944	952	RegSvcs.exe	netsh.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\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-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\PI-2006009 TRUONG THINH.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\PI-2006009 TRUONG THINH.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myhqZugPIlg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD97E.tmp"
2⤵
- Creates scheduled task(s)
PID:2024

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
PID:1476

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:952

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
3⤵
- Modifies registry key
PID:732

C:\Windows\SysWOW64\netsh.exe
"netsh" wlan show profile
3⤵
PID:1944

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD97E.tmp
Filesize
1KB

MD5
d21a42d4625d61659407739b570b134b

SHA1
7a696637b8ec91a3336ab5f5298e612b245609f1

SHA256
163e29b5cad44d2e851f9185e256a5c9b9c6b4e9a0a5119d97e0474779c1935f

SHA512
a4173529516fc7706412dc33bd444e125ec6310d9ad189a1c828a6413e6c3b56dc01b1cebccba584e4907bd04a56cbcc833b698fbb9e6b04d803a6a584c574d4

Download Submit
memory/732-72-0x0000000000000000-mapping.dmp

Download
memory/952-68-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-64-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-70-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-66-0x000000000044CF5E-mapping.dmp

Download
memory/952-61-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-63-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-60-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/952-65-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1492-57-0x0000000074C81000-0x0000000074C83000-memory.dmp

Filesize
8KB

Download
memory/1492-56-0x0000000005250000-0x00000000052A8000-memory.dmp

Filesize
352KB

Download
memory/1492-54-0x0000000001130000-0x00000000011A2000-memory.dmp

Filesize
456KB

Download
memory/1492-55-0x0000000000310000-0x0000000000318000-memory.dmp

Filesize
32KB

Download
memory/1944-73-0x0000000000000000-mapping.dmp

Download
memory/2024-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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