agenttesla | 7c4ec41185be3d57adbaa0bfcd8b517aa2cabbf40320e2de0dd1b4ad73aaab36

General

Target

FEDEX.EXE
Size

807KB
MD5

aedcd1bff5430ef44e428fa297923690
SHA1

1ac82d9a83f14b50155f3e4705a735e79f6c1579
SHA256

7c4ec41185be3d57adbaa0bfcd8b517aa2cabbf40320e2de0dd1b4ad73aaab36
SHA512

91f41fc9eb145e2c4aac7ae1bfed6c4a62bc2bc59e17c60f44cb47e275874e791daedbec11f3932b0edb2436e18de8d898f7b715687f80de09116ba608195df6

Score

10^/10

spyware persistence keylogger trojan stealer agenttesla

Malware Config

Signatures

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

Data from Local System
T1005

Credentials in Files
T1081

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\LocalConfig	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\Enroll\HcsGroups	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Shas	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\NapAgent\Qecs	netsh.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\napagent\LocalConfig\UI	netsh.exe

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

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
1032	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
360	FEDEX.EXE
1004	FEDEX.EXE
1004	FEDEX.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 1004	1032	FEDEX.EXE	24
PID 1032 wrote to memory of 1004	1032	FEDEX.EXE	24
PID 1032 wrote to memory of 1004	1032	FEDEX.EXE	24
PID 1032 wrote to memory of 1004	1032	FEDEX.EXE	24
PID 1032 wrote to memory of 360	1032	FEDEX.EXE	25
PID 1032 wrote to memory of 360	1032	FEDEX.EXE	25
PID 1032 wrote to memory of 360	1032	FEDEX.EXE	25
PID 1032 wrote to memory of 360	1032	FEDEX.EXE	25
PID 1004 wrote to memory of 668	1004	FEDEX.EXE	29
PID 1004 wrote to memory of 668	1004	FEDEX.EXE	29
PID 1004 wrote to memory of 668	1004	FEDEX.EXE	29
PID 1004 wrote to memory of 668	1004	FEDEX.EXE	29

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1032	FEDEX.EXE

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

Data from Local System
T1005

Credentials in Files
T1081
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 1004	1032	FEDEX.EXE	24

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1004	FEDEX.EXE

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

resource	yara_rule
behavioral1/memory/1004-0-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/1004-2-0x0000000000400000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/1004-4-0x0000000000400000-0x00000000004B1000-memory.dmp	upx

C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE
"C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
PID:1032
- C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE
  "C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  - Suspicious use of AdjustPrivilegeToken
  PID:1004
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    - Modifies service
    PID:668
- C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE
  "C:\Users\Admin\AppData\Local\Temp\FEDEX.EXE" 2 1004 118092
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:360

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1004-0-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/1004-2-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/1004-4-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/1004-5-0x00000000004C0000-0x0000000000512000-memory.dmp

Filesize
328KB

Download
memory/1004-6-0x0000000001F42000-0x0000000001F43000-memory.dmp

Filesize
4KB

Download
memory/1004-7-0x0000000000250000-0x000000000029C000-memory.dmp

Filesize
304KB

Download

Analysis

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