agenttesla | 135cadb95d5aa77cde0904370eef7816ef6be0da4cf7f309b37167ee60ec68a7

General

Target

INVOICE.exe
Size

447KB
MD5

ab8f0e41362d64775c1305dd85bc7412
SHA1

f48d3c839a6a30ec9a6fe47119733505858c39af
SHA256

135cadb95d5aa77cde0904370eef7816ef6be0da4cf7f309b37167ee60ec68a7
SHA512

b6945d27c01973aa52ccb5e5fe76d89e609b5a46f2ac57da8ad86fb5b14b875b83b70cfaac417e950d97f57f86178c896d8f7cbe4296c73c8277b27f76fd9900

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.maxsweater.com
Port:
587
Username:
[email protected]
Password:
max1234

Signatures

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

AgentTesla Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3012-124-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla
behavioral2/memory/3012-125-0x000000000043761E-mapping.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

INVOICE.exe

description pid process target process

PID 2052 set thread context of 3012 2052 INVOICE.exe RegSvcs.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

INVOICE.exeRegSvcs.exe

pid process

2052 INVOICE.exe
2052 INVOICE.exe
3012 RegSvcs.exe
3012 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

INVOICE.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 2052 INVOICE.exe
Token: SeDebugPrivilege 3012 RegSvcs.exe

description	pid	process	target process
PID 2052 set thread context of 3012	2052	INVOICE.exe	RegSvcs.exe

pid	process
2052	INVOICE.exe
2052	INVOICE.exe
3012	RegSvcs.exe
3012	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	2052	INVOICE.exe
Token: SeDebugPrivilege	3012	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

INVOICE.exe

description	pid	process	target process
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe
PID 2052 wrote to memory of 3012	2052	INVOICE.exe	RegSvcs.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.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	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\INVOICE.exe
"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2052

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
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:3012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2052-115-0x00000000005F0000-0x00000000005F1000-memory.dmp

Filesize
4KB

Download
memory/2052-117-0x00000000054A0000-0x00000000054A1000-memory.dmp

Filesize
4KB

Download
memory/2052-118-0x0000000005040000-0x0000000005041000-memory.dmp

Filesize
4KB

Download
memory/2052-119-0x0000000004FA0000-0x000000000549E000-memory.dmp

Filesize
5.0MB

Download
memory/2052-120-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

Filesize
4KB

Download
memory/2052-121-0x00000000053E0000-0x00000000053E7000-memory.dmp

Filesize
28KB

Download
memory/2052-122-0x0000000008A20000-0x0000000008A21000-memory.dmp

Filesize
4KB

Download
memory/2052-123-0x0000000008BC0000-0x0000000008C18000-memory.dmp

Filesize
352KB

Download
memory/3012-124-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/3012-125-0x000000000043761E-mapping.dmp

Download
memory/3012-130-0x0000000005160000-0x0000000005161000-memory.dmp

Filesize
4KB

Download
memory/3012-131-0x0000000005750000-0x0000000005751000-memory.dmp

Filesize
4KB

Download
memory/3012-132-0x0000000005EE0000-0x0000000005EE1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads