agenttesla | cd0bc188c3dc9db6dfe172f741057a0b125fc5929c918e5bf6da9db4f25a5965

General

Target

payment_copy.exe
Size

875KB
MD5

ac1a8206adb3d237cde83fc94bd94a9e
SHA1

70fe09146431ece56856dd12edf21dfb16f0e07d
SHA256

d0a5879ca1972047afbdf730b2ef1c09b6b74e93b35d6e1afe68d50261e0c771
SHA512

d646d1501c8dfb4389af429905334b3ded96462f4637de5db438a6d4aee8290d4a7ffa49e8acf0f71e209106921743588129adc59aabcbd9fecc731f3af1998b
SSDEEP

12288:TqA8+g17rix6knkTSCZKY+fW/a3IpAmaE7xMo6gKoAmQ7M:yEDkOCCWyIpB572o6D7M

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence privilege_escalation rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
smtp.yandex.com
Port:
587
Username:
[email protected]
Password:
Blessed000@

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/1872-14-0x00000000061C0000-0x0000000006212000-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

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

resource	yara_rule
behavioral2/memory/1872-10-0x0000000007ED0000-0x0000000007F28000-memory.dmp	rezer0

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	payment_copy.exe

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
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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	payment_copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	payment_copy.exe
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	payment_copy.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	payment_copy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
2396	netsh.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1872	payment_copy.exe
1872	payment_copy.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1872	payment_copy.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1872 wrote to memory of 4924	1872	payment_copy.exe	92
PID 1872 wrote to memory of 4924	1872	payment_copy.exe	92
PID 1872 wrote to memory of 4924	1872	payment_copy.exe	92
PID 1872 wrote to memory of 2396	1872	payment_copy.exe	95
PID 1872 wrote to memory of 2396	1872	payment_copy.exe	95
PID 1872 wrote to memory of 2396	1872	payment_copy.exe	95

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	payment_copy.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	payment_copy.exe

C:\Users\Admin\AppData\Local\Temp\payment_copy.exe
"C:\Users\Admin\AppData\Local\Temp\payment_copy.exe"
1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:1872
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yNaYWF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5697.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4924
- C:\Windows\SysWOW64\netsh.exe
  "netsh" wlan show profile
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:2396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

5

T1552

Credentials In Files

4

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Wi-Fi Discovery

1

T1016.002

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5697.tmp

Filesize
1KB

MD5
9bf26f037ba5e18f3765e612b8d91e3a

SHA1
a134c76d028f47da1516c2d82dc6709f2802c538

SHA256
27e5a32f457fc85d2f0a9e711c61325d44ed7139722930ebf3b628856c3b1c9d

SHA512
01e31820c93dc87529b0bb0618c80f6ec9e770da30794d428b2fe42f7070d5a6f54278f51d1b111c16f9d0d094ea53945cc13bbda55130d8944f72852990c117

Download Submit
memory/1872-8-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/1872-9-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1872-3-0x0000000005040000-0x00000000050D2000-memory.dmp

Filesize
584KB

Download
memory/1872-4-0x0000000075360000-0x0000000075B10000-memory.dmp

Filesize
7.7MB

Download
memory/1872-5-0x0000000005200000-0x000000000520A000-memory.dmp

Filesize
40KB

Download
memory/1872-6-0x0000000007AB0000-0x0000000007B4C000-memory.dmp

Filesize
624KB

Download
memory/1872-2-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/1872-0-0x000000007536E000-0x000000007536F000-memory.dmp

Filesize
4KB

Download
memory/1872-7-0x0000000007A10000-0x0000000007A18000-memory.dmp

Filesize
32KB

Download
memory/1872-10-0x0000000007ED0000-0x0000000007F28000-memory.dmp

Filesize
352KB

Download
memory/1872-1-0x0000000000570000-0x0000000000652000-memory.dmp

Filesize
904KB

Download
memory/1872-14-0x00000000061C0000-0x0000000006212000-memory.dmp

Filesize
328KB

Download
memory/1872-15-0x0000000006470000-0x0000000006488000-memory.dmp

Filesize
96KB

Download
memory/1872-16-0x00000000085E0000-0x0000000008646000-memory.dmp

Filesize
408KB

Download
memory/1872-17-0x0000000008520000-0x0000000008570000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads