agenttesla | 15637f2d530662c968272c1e6e48ca6a093f0c828edf0cbb5cd32d9af03b3ff5

General

Target

winlogon.exe
Size

462KB
MD5

629f5bb8b5ee75e90c393ad9d96a1772
SHA1

b09925a7163bef858657a1b39146fe27abb01f99
SHA256

15637f2d530662c968272c1e6e48ca6a093f0c828edf0cbb5cd32d9af03b3ff5
SHA512

3434c0b1f42533c42a4232809a007ddfd340ebc0d500db436cd038e3d3b4aaf0fd8bcf36e3a1cee4442c5d894679f5cdc7cef5a90c04534f937121d6cc9e3857

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.stockmeieir.com
Port:
587
Username:
m.melendez@stockmeieir.com
Password:
aU6sb@#1%Efh

Signatures

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

AgentTesla Payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1344-132-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1344-133-0x00000000004374EE-mapping.dmp	family_agenttesla
behavioral2/memory/1344-144-0x0000000004F70000-0x000000000546E000-memory.dmp	family_agenttesla
behavioral2/memory/1344-388-0x0000000004F70000-0x000000000546E000-memory.dmp	family_agenttesla

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

winlogon.exe

description pid process target process

PID 3496 set thread context of 1344 3496 winlogon.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

3056 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

winlogon.exeRegSvcs.exepowershell.exe

pid process

3496 winlogon.exe
3496 winlogon.exe
1344 RegSvcs.exe
1344 RegSvcs.exe
820 powershell.exe
820 powershell.exe
820 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

winlogon.exeRegSvcs.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3496 winlogon.exe
Token: SeDebugPrivilege 1344 RegSvcs.exe
Token: SeDebugPrivilege 820 powershell.exe

description	pid	process	target process
PID 3496 set thread context of 1344	3496	winlogon.exe	RegSvcs.exe

pid	process
3056	schtasks.exe

pid	process
3496	winlogon.exe
3496	winlogon.exe
1344	RegSvcs.exe
1344	RegSvcs.exe
820	powershell.exe
820	powershell.exe
820	powershell.exe

description	pid	process
Token: SeDebugPrivilege	3496	winlogon.exe
Token: SeDebugPrivilege	1344	RegSvcs.exe
Token: SeDebugPrivilege	820	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

winlogon.exe

description	pid	process	target process
PID 3496 wrote to memory of 820	3496	winlogon.exe	powershell.exe
PID 3496 wrote to memory of 820	3496	winlogon.exe	powershell.exe
PID 3496 wrote to memory of 820	3496	winlogon.exe	powershell.exe
PID 3496 wrote to memory of 3056	3496	winlogon.exe	schtasks.exe
PID 3496 wrote to memory of 3056	3496	winlogon.exe	schtasks.exe
PID 3496 wrote to memory of 3056	3496	winlogon.exe	schtasks.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe
PID 3496 wrote to memory of 1344	3496	winlogon.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\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-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\winlogon.exe
"C:\Users\Admin\AppData\Local\Temp\winlogon.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UlhpAjSuVoTa.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:820

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlhpAjSuVoTa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp722E.tmp"
2⤵
- Creates scheduled task(s)
PID:3056

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1344

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp722E.tmp
MD5
8733ec86a2de0a85acb180a8fe791d09

SHA1
7bd167fbf59d784ac42508934524b3a3872aba7b

SHA256
24ce2c2ab6a0e079dc9bd67885d7c53c1adcfb296b6ba480eeb4b9f8a7f00413

SHA512
33ff0c79c607076ebf883d90414c998cde19982d7dd0588bca97778a773f52e95864352b8334d76a774de78c1478d26b9b46d23edac10ba136ee0697c8c07ce0

Download Submit
memory/820-134-0x0000000005030000-0x0000000005031000-memory.dmp

Filesize
4KB

Download
memory/820-155-0x0000000009820000-0x0000000009853000-memory.dmp

Filesize
204KB

Download
memory/820-145-0x0000000008630000-0x0000000008631000-memory.dmp

Filesize
4KB

Download
memory/820-143-0x0000000008160000-0x0000000008161000-memory.dmp

Filesize
4KB

Download
memory/820-168-0x000000007EAE0000-0x000000007EAE1000-memory.dmp

Filesize
4KB

Download
memory/820-135-0x0000000005032000-0x0000000005033000-memory.dmp

Filesize
4KB

Download
memory/820-169-0x0000000005033000-0x0000000005034000-memory.dmp

Filesize
4KB

Download
memory/820-167-0x0000000009B50000-0x0000000009B51000-memory.dmp

Filesize
4KB

Download
memory/820-125-0x0000000000000000-mapping.dmp

Download
memory/820-162-0x00000000097E0000-0x00000000097E1000-memory.dmp

Filesize
4KB

Download
memory/820-127-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/820-128-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/820-129-0x0000000004F40000-0x0000000004F41000-memory.dmp

Filesize
4KB

Download
memory/820-146-0x0000000008BC0000-0x0000000008BC1000-memory.dmp

Filesize
4KB

Download
memory/820-131-0x0000000007A50000-0x0000000007A51000-memory.dmp

Filesize
4KB

Download
memory/820-142-0x00000000080F0000-0x00000000080F1000-memory.dmp

Filesize
4KB

Download
memory/820-170-0x0000000009D60000-0x0000000009D61000-memory.dmp

Filesize
4KB

Download
memory/820-148-0x0000000004E10000-0x0000000004E11000-memory.dmp

Filesize
4KB

Download
memory/820-147-0x0000000008A80000-0x0000000008A81000-memory.dmp

Filesize
4KB

Download
memory/820-140-0x00000000079A0000-0x00000000079A1000-memory.dmp

Filesize
4KB

Download
memory/820-141-0x0000000008080000-0x0000000008081000-memory.dmp

Filesize
4KB

Download
memory/1344-132-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1344-133-0x00000000004374EE-mapping.dmp

Download
memory/1344-144-0x0000000004F70000-0x000000000546E000-memory.dmp

Filesize
5.0MB

Download
memory/1344-388-0x0000000004F70000-0x000000000546E000-memory.dmp

Filesize
5.0MB

Download
memory/3056-126-0x0000000000000000-mapping.dmp

Download
memory/3496-122-0x0000000005010000-0x0000000005011000-memory.dmp

Filesize
4KB

Download
memory/3496-120-0x0000000004BA0000-0x0000000004BA1000-memory.dmp

Filesize
4KB

Download
memory/3496-117-0x0000000005100000-0x0000000005101000-memory.dmp

Filesize
4KB

Download
memory/3496-118-0x0000000004C00000-0x0000000004C01000-memory.dmp

Filesize
4KB

Download
memory/3496-124-0x0000000005A40000-0x0000000005AA9000-memory.dmp

Filesize
420KB

Download
memory/3496-123-0x00000000058A0000-0x00000000058A1000-memory.dmp

Filesize
4KB

Download
memory/3496-121-0x0000000004E40000-0x0000000004E48000-memory.dmp

Filesize
32KB

Download
memory/3496-115-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/3496-119-0x0000000004B00000-0x0000000004B92000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads