agenttesla | 5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967

General

Target

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
Size

1.5MB
MD5

a623c92ea533fdec00aa1f99c724fe0a
SHA1

1c641a709f29a420a07dc6497e5660b040ab79a7
SHA256

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967
SHA512

e96e4d50db8d96454948f001473c2e9bfde265234e1591a6e874fba48b866aedda17ad481ae5c4e9edd3e5e6590f1dbf6a9a945e68fce4ef662c03e02b4e78da

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
aFsO$W)7

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
behavioral1/memory/2000-57-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-62-0x0000000000447C3E-mapping.dmp	family_agenttesla
behavioral1/memory/2000-64-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/2000-63-0x0000000000400000-0x000000000044C000-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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows\CurrentVersion\Run\firefox = "C:\\Users\\Admin\\AppData\\Roaming\\firefox\\firefox.exe"	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

description	pid	process	target process
PID 1000 set thread context of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

2000 RegAsm.exe
2000 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2000 RegAsm.exe

pid	process
2000	RegAsm.exe
2000	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2000	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

pid	process
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

pid	process
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe

description	pid	process	target process
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe
PID 1000 wrote to memory of 2000	1000	5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe	RegAsm.exe

outlook_office_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

outlook_win_path 1 IoCs

Processes:

RegAsm.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe
"C:\Users\Admin\AppData\Local\Temp\5b96fbaf2bc4c8b449e1bbb30efa5152ff1565a924ae759f10223f8869e21967.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1000

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"
2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2000

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

Lateral Movement

Collection

Data from Local System

3

T1005

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/1000-54-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/1000-65-0x0000000000680000-0x00000000006C7000-memory.dmp

Filesize
284KB

Download
memory/2000-57-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-55-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-62-0x0000000000447C3E-mapping.dmp

Download
memory/2000-64-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2000-67-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2000-68-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads