agenttesla | 1444e0357cb44d15a7037fa38f19977f5e1d12b6eb516aa2af67efd44b9b9a9c

General

Target

VIFON PO.exe
Size

557KB
MD5

8a3847f7d153e1ac19d9a530abc2b6e3
SHA1

98962852fa6b0102fd15a3599550576b62fc2ddf
SHA256

1444e0357cb44d15a7037fa38f19977f5e1d12b6eb516aa2af67efd44b9b9a9c
SHA512

11d15bfb4a2acb3c7a4e5e6c996bbac0987278ebd1d5a0ef735c646456123498b2530adeed511c6dfa155bbe3601af676e445c3ceea8a7ded0a797e31361dfae

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:
sales@xxltrucck.com
Password:
zxcvbnm12345

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/4652-125-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/4652-126-0x000000000043759E-mapping.dmp	family_agenttesla
behavioral2/memory/4652-130-0x00000000050B0000-0x00000000055AE000-memory.dmp	family_agenttesla
behavioral2/memory/4652-136-0x00000000050B0000-0x00000000055AE000-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:

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

VIFON PO.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

VIFON PO.exe

description pid process target process

PID 4364 set thread context of 4652 4364 VIFON PO.exe VIFON PO.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

4624 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

VIFON PO.exe

pid process

4652 VIFON PO.exe
4652 VIFON PO.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

VIFON PO.exe

description pid process

Token: SeDebugPrivilege 4652 VIFON PO.exe

description	pid	process	target process
PID 4364 set thread context of 4652	4364	VIFON PO.exe	VIFON PO.exe

pid	process
4624	schtasks.exe

pid	process
4652	VIFON PO.exe
4652	VIFON PO.exe

description	pid	process
Token: SeDebugPrivilege	4652	VIFON PO.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

VIFON PO.exe

description	pid	process	target process
PID 4364 wrote to memory of 4624	4364	VIFON PO.exe	schtasks.exe
PID 4364 wrote to memory of 4624	4364	VIFON PO.exe	schtasks.exe
PID 4364 wrote to memory of 4624	4364	VIFON PO.exe	schtasks.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe
PID 4364 wrote to memory of 4652	4364	VIFON PO.exe	VIFON PO.exe

outlook_office_path 1 IoCs

Processes:

VIFON PO.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	VIFON PO.exe

outlook_win_path 1 IoCs

Processes:

VIFON PO.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	VIFON PO.exe

C:\Users\Admin\AppData\Local\Temp\VIFON PO.exe
"C:\Users\Admin\AppData\Local\Temp\VIFON PO.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4364

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uqxpXHCD" /XML "C:\Users\Admin\AppData\Local\Temp\tmp913F.tmp"
2⤵
- Creates scheduled task(s)
PID:4624

C:\Users\Admin\AppData\Local\Temp\VIFON PO.exe
"C:\Users\Admin\AppData\Local\Temp\VIFON PO.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:4652

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

memory/4364-115-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/4364-117-0x0000000005C30000-0x0000000005C31000-memory.dmp

Filesize
4KB

Download
memory/4364-118-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/4364-119-0x0000000005730000-0x0000000005C2E000-memory.dmp

Filesize
5.0MB

Download
memory/4364-120-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/4364-121-0x00000000064F0000-0x00000000064F7000-memory.dmp

Filesize
28KB

Download
memory/4364-122-0x0000000009420000-0x0000000009421000-memory.dmp

Filesize
4KB

Download
memory/4364-123-0x00000000094C0000-0x0000000009518000-memory.dmp

Filesize
352KB

Download
memory/4624-124-0x0000000000000000-mapping.dmp

Download
memory/4652-125-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4652-126-0x000000000043759E-mapping.dmp

Download
memory/4652-130-0x00000000050B0000-0x00000000055AE000-memory.dmp

Filesize
5.0MB

Download
memory/4652-132-0x00000000051B0000-0x00000000051B1000-memory.dmp

Filesize
4KB

Download
memory/4652-133-0x0000000005D10000-0x0000000005D11000-memory.dmp

Filesize
4KB

Download
memory/4652-136-0x00000000050B0000-0x00000000055AE000-memory.dmp

Filesize
5.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads