agenttesla | 8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43

General

Target

8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
Size

338KB
MD5

02f3bc80226b4f83fc1834b48006f8f2
SHA1

0eb16d508e605a89a66891b3123972dcd06197d8
SHA256

8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43
SHA512

f8bd2bbb1cccdea74eed30d661f66512d0467ba22aef776099ff05ef18b2701cf69a41d550aa04fbe1c824a533b34f27d0ba1333e210620a9429d2c60b5aef38

Score

10^/10

agenttesla collection evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
908070bl

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

AgentTesla Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3284-130-0x0000000000150000-0x00000000001AA000-memory.dmp	family_agenttesla

Disables Task Manager via registry modification
evasion
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

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windowsupdate = "C:\\Users\\Admin\\AppData\\Roaming\\Windowsupdate\\Windowsupdate.exe"	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
33	checkip.amazonaws.com

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
4188	REG.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3284 wrote to memory of 4188	3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe	86
PID 3284 wrote to memory of 4188	3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe	86
PID 3284 wrote to memory of 4188	3284	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe	86

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe

C:\Users\Admin\AppData\Local\Temp\8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe
"C:\Users\Admin\AppData\Local\Temp\8d48ebb0fa647bebb42025288e3a64a6e15114fa4bb9b47ed52c9d3bbf722d43.exe"
1⤵
- UAC bypass
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
- outlook_office_path
- outlook_win_path
PID:3284
- C:\Windows\SysWOW64\REG.exe
  REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
  2⤵
  - Modifies registry key
  PID:4188

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

Modify Registry

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3284-130-0x0000000000150000-0x00000000001AA000-memory.dmp

Filesize
360KB

Download
memory/3284-131-0x00000000049C0000-0x0000000004A5C000-memory.dmp

Filesize
624KB

Download
memory/3284-132-0x0000000005300000-0x00000000058A4000-memory.dmp

Filesize
5.6MB

Download
memory/3284-133-0x0000000004B20000-0x0000000004BB2000-memory.dmp

Filesize
584KB

Download
memory/3284-134-0x0000000005110000-0x0000000005176000-memory.dmp

Filesize
408KB

Download
memory/3284-136-0x0000000006C00000-0x0000000006C50000-memory.dmp

Filesize
320KB

Download
memory/3284-137-0x0000000006D90000-0x0000000006D9A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads