agenttesla | ba3c025f8f7b1c849f840ea5183e5aef27105134f5f22144857f141360d17c88

Analysis

max time kernel
140s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-09-2024 02:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

invoice.pdf.exe
Size

644KB
MD5

d2bcb1d9ce1f1d32ef8af55e66c41998
SHA1

271c46d3000bb61b8e4a62ac7b6649f4ff8c2b1b
SHA256

718fc86c95456f531fb7ff1ab7d313376cb3db0ed2ef0469b175d1156659845a
SHA512

f835cdbe8e35ec668e3636d7a28edfe49f3c2c08f1164867b5f407488588000f72ad6dfe6efd66213e13415e0c1a5461812d9119e6e0cafee671cf973cf58efd
SSDEEP

12288:JEIe3NA3HiCcLSMJ6C29Ghjp27JKHkM76/2C16S3wUep1kx8a:JED3KSsPGlsoES6+CYStep1kX

Score

10^/10

agenttesla collection credential_access discovery keylogger spyware stealer trojan upx

Malware Config

Signatures

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

AgentTesla payload 10 IoCs

resource	yara_rule
behavioral1/memory/2480-13-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-12-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-11-0x00000000004C0000-0x00000000004F6000-memory.dmp	family_agenttesla
behavioral1/memory/2480-10-0x00000000004C0000-0x00000000004F6000-memory.dmp	family_agenttesla
behavioral1/memory/2480-9-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-8-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-24-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-25-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-26-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla
behavioral1/memory/2480-27-0x0000000000400000-0x000000000047A000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
T1552.001
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
T1552.001
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
T1552.001

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2480-13-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/2480-12-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/2480-9-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/2480-8-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/2480-7-0x0000000000400000-0x000000000047A000-memory.dmp	upx
behavioral1/memory/2480-4-0x0000000000400000-0x000000000047A000-memory.dmp	upx

Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	invoice.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	invoice.pdf.exe
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	invoice.pdf.exe

Looks up external IP address via web service 3 IoCs

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

flow	ioc
6	api.ipify.org
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1624 set thread context of 2480	1624	invoice.pdf.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	invoice.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	invoice.pdf.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1624	invoice.pdf.exe
2480	invoice.pdf.exe
2480	invoice.pdf.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1624	invoice.pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2480	invoice.pdf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 2480	1624	invoice.pdf.exe	31
PID 1624 wrote to memory of 2480	1624	invoice.pdf.exe	31
PID 1624 wrote to memory of 2480	1624	invoice.pdf.exe	31
PID 1624 wrote to memory of 2480	1624	invoice.pdf.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	invoice.pdf.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	invoice.pdf.exe

C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1624
- C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice.pdf.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1624-2-0x0000000000350000-0x0000000000360000-memory.dmp

Filesize
64KB

Download
memory/1624-1-0x0000000000350000-0x0000000000360000-memory.dmp

Filesize
64KB

Download
memory/1624-3-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/1624-5-0x0000000000400000-0x00000000004A7000-memory.dmp

Filesize
668KB

Download
memory/1624-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2480-13-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-11-0x00000000004C0000-0x00000000004F6000-memory.dmp

Filesize
216KB

Download
memory/2480-10-0x00000000004C0000-0x00000000004F6000-memory.dmp

Filesize
216KB

Download
memory/2480-9-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-8-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-7-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-4-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-12-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-24-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-25-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-26-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/2480-27-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download