agenttesla | 770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64

Analysis

max time kernel
188s
max time network
234s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2022 07:53

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General

Target

770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe
Size

826KB
MD5

7bf8cf4f9e2a7daf267a8a098f586b8e
SHA1

6cb9b445d6ac732a5a822591c03220820b47345a
SHA256

770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64
SHA512

91330b06a4bff8ef0ade473346d6c4341d4b7d420e68c0d6cbe3f5eb073d24180c2a538d32abeede386d48074163c5946676311ab6230566ae8c90acd39bfd2b
SSDEEP

12288:dC/K7WY3cT2iIjNftGQdNpVo4PmQH/oVYHf5ahQWSH3FeqF:0K7W+49IjltGt4nH/oVksQNHVjF

Score

10^/10

agenttesla collection keylogger spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.bretoffice.com
Port:
587
Username:
brets@bretoffice.com
Password:
Q4Nyam%+dQ^=
Email To:
bret@bretoffice.com

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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Regsvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe

description	pid	process	target process
PID 4204 set thread context of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Regsvcs.exe

pid process

4404 Regsvcs.exe
4404 Regsvcs.exe
4404 Regsvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Regsvcs.exe

description pid process

Token: SeDebugPrivilege 4404 Regsvcs.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Regsvcs.exe

pid process

4404 Regsvcs.exe

pid	process
4404	Regsvcs.exe
4404	Regsvcs.exe
4404	Regsvcs.exe

description	pid	process
Token: SeDebugPrivilege	4404	Regsvcs.exe

pid	process
4404	Regsvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe

description	pid	process	target process
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe
PID 4204 wrote to memory of 4404	4204	770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe	Regsvcs.exe

outlook_office_path 1 IoCs

Processes:

Regsvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\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-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	Regsvcs.exe

C:\Users\Admin\AppData\Local\Temp\770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe
"C:\Users\Admin\AppData\Local\Temp\770de70064348d681d3566ced39f477c786c50d2c267a4a045544b7339940a64.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4204

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
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4404

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

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Downloads

memory/4204-132-0x0000026428980000-0x0000026428A54000-memory.dmp

Filesize
848KB

Download
memory/4204-135-0x00007FFA05410000-0x00007FFA05ED1000-memory.dmp

Filesize
10.8MB

Download
memory/4404-133-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4404-134-0x000000000043248E-mapping.dmp

Download
memory/4404-136-0x0000000005420000-0x00000000059C4000-memory.dmp

Filesize
5.6MB

Download
memory/4404-137-0x0000000004F10000-0x0000000004FAC000-memory.dmp

Filesize
624KB

Download
memory/4404-138-0x00000000053B0000-0x0000000005416000-memory.dmp

Filesize
408KB

Download
memory/4404-139-0x0000000000A90000-0x0000000000B22000-memory.dmp

Filesize
584KB

Download
memory/4404-140-0x0000000006010000-0x0000000006060000-memory.dmp

Filesize
320KB

Download
memory/4404-141-0x0000000005FF0000-0x0000000005FFA000-memory.dmp

Filesize
40KB

Download