agenttesla | 54b175b518548b1747c84b4b8e0409cf62ca3665ee71eb6cd5a5bb518c49ca38

General

Target

DHL_document11022020680908911.exe
Size

42KB
MD5

cca99eb08126318aeb968714aef69a78
SHA1

0db4248ac7403351b1e7458cbf5544caede53ee9
SHA256

54b175b518548b1747c84b4b8e0409cf62ca3665ee71eb6cd5a5bb518c49ca38
SHA512

4009fc30f965936f11cb9d9e59e5ddcb595df913fd83dede3ae93382a2937e730adec8321ceb45d4d007b3e7432a781605b0af817379ce1e031b466ada0d11d5

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.mail.ru
Port:
587
Username:
Businessgroup84@mail.ru
Password:
xxxlahot2

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1540-65-0x0000000000C80000-0x0000000000CB6000-memory.dmp	family_agenttesla
behavioral1/memory/1800-68-0x00000000024A0000-0x00000000030EA000-memory.dmp	family_agenttesla

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

DHL_document11022020680908911.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	DHL_document11022020680908911.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions	DHL_document11022020680908911.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\Cursors\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\svchost.exe = "0"	DHL_document11022020680908911.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\DHL_document11022020680908911.exe = "0"	DHL_document11022020680908911.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

DHL_document11022020680908911.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_document11022020680908911.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_document11022020680908911.exe
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_document11022020680908911.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

DHL_document11022020680908911.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\蔷蔸蔸蕲蔷蔸蕲蕦蔵蔺蕈蔳蔷蕌蕳 = "C:\\Windows\\Cursors\\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\\svchost.exe"	DHL_document11022020680908911.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\TmZaMAa = "C:\\Users\\Admin\\AppData\\Roaming\\TmZaMAa\\TmZaMAa.exe"	DHL_document11022020680908911.exe

Drops file in Windows directory 2 IoCs

Processes:

DHL_document11022020680908911.exe

description	ioc	process
File created	C:\Windows\Cursors\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\svchost.exe	DHL_document11022020680908911.exe
File opened for modification	C:\Windows\Cursors\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\svchost.exe	DHL_document11022020680908911.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

DHL_document11022020680908911.exepowershell.exepowershell.exepowershell.exe

pid process

1540 DHL_document11022020680908911.exe
1540 DHL_document11022020680908911.exe
272 powershell.exe
1800 powershell.exe
1888 powershell.exe

pid	process
1540	DHL_document11022020680908911.exe
1540	DHL_document11022020680908911.exe
272	powershell.exe
1800	powershell.exe
1888	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

DHL_document11022020680908911.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1540	DHL_document11022020680908911.exe
Token: SeDebugPrivilege	272	powershell.exe
Token: SeDebugPrivilege	1800	powershell.exe
Token: SeDebugPrivilege	1888	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DHL_document11022020680908911.exe

description	pid	process	target process
PID 1540 wrote to memory of 272	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 272	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 272	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 272	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1888	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1888	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1888	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1888	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1800	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1800	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1800	1540	DHL_document11022020680908911.exe	powershell.exe
PID 1540 wrote to memory of 1800	1540	DHL_document11022020680908911.exe	powershell.exe

outlook_office_path 1 IoCs

Processes:

DHL_document11022020680908911.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_document11022020680908911.exe

outlook_win_path 1 IoCs

Processes:

DHL_document11022020680908911.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	DHL_document11022020680908911.exe

C:\Users\Admin\AppData\Local\Temp\DHL_document11022020680908911.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_document11022020680908911.exe"
1⤵
- Windows security modification
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1540

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Cursors\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\svchost.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:272

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\DHL_document11022020680908911.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1888

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Cursors\뻄뺷뺵뺺뺊뻃뺩뺜뺴뻌뺉뺈뺉뺷뺉\svchost.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1800

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Disabling Security Tools

2

T1089

Modify Registry

3

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
06ed37b4c86170a53ca52807cf3bf7ac

SHA1
5c34aabd1a15d18d8bc45b4f61eb59d5fe1b2a25

SHA256
27247083facc6889d30b6d7f8ef341928ee3a8059dfa4e5833b5a7c3bbf3ffa0

SHA512
a2fef8e384094aad4b8a2aeffe27b7ab404009cace6c1a7f2fae3e3a17e92ad35a869bfb8c66ca07f55cdbc314e158df425314f69b86818260236dfee2734dc9

Download Submit
memory/272-71-0x0000000002382000-0x0000000002384000-memory.dmp

Filesize
8KB

Download
memory/272-70-0x0000000002381000-0x0000000002382000-memory.dmp

Filesize
4KB

Download
memory/272-67-0x0000000002380000-0x0000000002381000-memory.dmp

Filesize
4KB

Download
memory/272-59-0x0000000000000000-mapping.dmp

Download
memory/1540-58-0x0000000000410000-0x0000000000491000-memory.dmp

Filesize
516KB

Download
memory/1540-65-0x0000000000C80000-0x0000000000CB6000-memory.dmp

Filesize
216KB

Download
memory/1540-54-0x0000000001120000-0x0000000001121000-memory.dmp

Filesize
4KB

Download
memory/1540-57-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/1540-56-0x00000000768C1000-0x00000000768C3000-memory.dmp

Filesize
8KB

Download
memory/1800-62-0x0000000000000000-mapping.dmp

Download
memory/1800-68-0x00000000024A0000-0x00000000030EA000-memory.dmp

Filesize
12.3MB

Download
memory/1800-72-0x00000000024A0000-0x00000000030EA000-memory.dmp

Filesize
12.3MB

Download
memory/1888-60-0x0000000000000000-mapping.dmp

Download
memory/1888-69-0x00000000026E0000-0x000000000332A000-memory.dmp

Filesize
12.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads