agenttesla | 95adb79ec9bd9c77bba228ecee761419cd852a3aa302a7cd7bec0834952666a3

General

Target

overdue invoice PDF.exe
Size

820KB
MD5

e1ecea0bc4b06e4ed65e1e61004ec221
SHA1

b48b8b03198c6b5c04da12afa1fa755f70a7b574
SHA256

95adb79ec9bd9c77bba228ecee761419cd852a3aa302a7cd7bec0834952666a3
SHA512

6b7e7b499c7860abb5af191a9f4ee69c6a8a72a11d508453ad70520128a5a0ebf81eb82667969e061bb4caf81c0f8077149b28d47387a1cb1d5554257db927d8

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
smtp.vibranthonda.co
Port:
587
Username:
parts@vibranthonda.co
Password:
RADHE@123

Signatures

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

AgentTesla Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1848-128-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/1848-129-0x00000000004376DE-mapping.dmp	family_agenttesla
behavioral2/memory/1848-134-0x0000000005260000-0x000000000575E000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

overdue invoice PDF.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts overdue invoice PDF.exe
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

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

overdue invoice PDF.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	overdue invoice PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	overdue invoice PDF.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

overdue invoice PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\tKZVPq = "C:\\Users\\Admin\\AppData\\Roaming\\tKZVPq\\tKZVPq.exe"	overdue invoice PDF.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

overdue invoice PDF.exe

description pid process target process

PID 3004 set thread context of 1848 3004 overdue invoice PDF.exe overdue invoice PDF.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

3456 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

overdue invoice PDF.exe

pid process

1848 overdue invoice PDF.exe
1848 overdue invoice PDF.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

overdue invoice PDF.exe

description pid process

Token: SeDebugPrivilege 1848 overdue invoice PDF.exe

description	pid	process	target process
PID 3004 set thread context of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe

pid	process
3456	schtasks.exe

pid	process
1848	overdue invoice PDF.exe
1848	overdue invoice PDF.exe

description	pid	process
Token: SeDebugPrivilege	1848	overdue invoice PDF.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

overdue invoice PDF.exe

description	pid	process	target process
PID 3004 wrote to memory of 3456	3004	overdue invoice PDF.exe	schtasks.exe
PID 3004 wrote to memory of 3456	3004	overdue invoice PDF.exe	schtasks.exe
PID 3004 wrote to memory of 3456	3004	overdue invoice PDF.exe	schtasks.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe
PID 3004 wrote to memory of 1848	3004	overdue invoice PDF.exe	overdue invoice PDF.exe

outlook_office_path 1 IoCs

Processes:

overdue invoice PDF.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	overdue invoice PDF.exe

outlook_win_path 1 IoCs

Processes:

overdue invoice PDF.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	overdue invoice PDF.exe

C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.exe
"C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FNIcpowoxPr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5909.tmp"
2⤵
- Creates scheduled task(s)
PID:3456

C:\Users\Admin\AppData\Local\Temp\overdue invoice PDF.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
- outlook_office_path
- outlook_win_path
PID:1848

Network

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

1

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5909.tmp
MD5
70c5057432225c5ef889fa16db7e08c6

SHA1
0da4dad4bcf04e81312ee19e65347c35f3fc38a0

SHA256
01bda5ae5c7840d74341fc59bf7ac6afc3308b239289324ed6238573116ca8aa

SHA512
9dfdaf86e4e81115414f528aca943440dd99219f500377db558f8f171258a1342501ce00ee3fa7cb302ac774ac420e7862f631aa47abc04e32d786df06541035

Download Submit
memory/1848-136-0x0000000005FC0000-0x0000000005FC1000-memory.dmp

Filesize
4KB

Download
memory/1848-135-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/1848-134-0x0000000005260000-0x000000000575E000-memory.dmp

Filesize
5.0MB

Download
memory/1848-129-0x00000000004376DE-mapping.dmp

Download
memory/1848-128-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3004-120-0x00000000050A0000-0x000000000559E000-memory.dmp

Filesize
5.0MB

Download
memory/3004-123-0x0000000004F60000-0x0000000004F6E000-memory.dmp

Filesize
56KB

Download
memory/3004-124-0x0000000005F80000-0x0000000006001000-memory.dmp

Filesize
516KB

Download
memory/3004-125-0x0000000008510000-0x0000000008548000-memory.dmp

Filesize
224KB

Download
memory/3004-122-0x0000000005200000-0x0000000005201000-memory.dmp

Filesize
4KB

Download
memory/3004-121-0x0000000002950000-0x0000000002951000-memory.dmp

Filesize
4KB

Download
memory/3004-115-0x0000000000650000-0x0000000000651000-memory.dmp

Filesize
4KB

Download
memory/3004-119-0x00000000050A0000-0x00000000050A1000-memory.dmp

Filesize
4KB

Download
memory/3004-118-0x00000000055A0000-0x00000000055A1000-memory.dmp

Filesize
4KB

Download
memory/3004-117-0x0000000005000000-0x0000000005001000-memory.dmp

Filesize
4KB

Download
memory/3456-126-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads