agenttesla | cfa8500855ccaa76851c94889a2180a28813d29e72d61555cec074461b0c1968

General

Target

0909R0909000990.exe
Size

531KB
MD5

ea763cb9026f15c3f7406d91221488ff
SHA1

cb306046e6a3b8fa16bb48259a122d01ca235bf4
SHA256

4dc1a8739a91b1de60bd63bf9d9f0a8c4619133ceb0c22e6559cdceecaf69086
SHA512

7cac03ce9e850d4fd62df41594d54f77ae4f2c343005f05379156341564e545ab593dce329e559ca944793746f3c26e9c7255c777eaeaebf1c6c8f08f09cac4a
SSDEEP

6144:+lY9KE6OIY1S5K59Li/Y9Rah2p+2SH0x6eSXc+LUIrbpsN9p/on2zrH7mOtHnVHa:b1WK5+oR9qgvStLFxsrp/on23dTbo

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence privilege_escalation rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.ereglitso.org.tr
Port:
587
Username:
[email protected]
Password:
=itbvqD+KGPp

Signatures

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

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/1684-15-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1684-17-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1684-12-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1684-20-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla
behavioral1/memory/1684-11-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

resource	yara_rule
behavioral1/memory/2296-4-0x00000000009B0000-0x0000000000A08000-memory.dmp	rezer0

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 3 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

Credentials from Web Browsers
T1555.003
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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2296 set thread context of 1684	2296	0909R0909000990.exe	32

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 4 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	0909R0909000990.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0909R0909000990.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
2656	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
2512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1684	0909R0909000990.exe
1684	0909R0909000990.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1684	0909R0909000990.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 2512	2296	0909R0909000990.exe	30
PID 2296 wrote to memory of 2512	2296	0909R0909000990.exe	30
PID 2296 wrote to memory of 2512	2296	0909R0909000990.exe	30
PID 2296 wrote to memory of 2512	2296	0909R0909000990.exe	30
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 2296 wrote to memory of 1684	2296	0909R0909000990.exe	32
PID 1684 wrote to memory of 2656	1684	0909R0909000990.exe	35
PID 1684 wrote to memory of 2656	1684	0909R0909000990.exe	35
PID 1684 wrote to memory of 2656	1684	0909R0909000990.exe	35
PID 1684 wrote to memory of 2656	1684	0909R0909000990.exe	35

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe

C:\Users\Admin\AppData\Local\Temp\0909R0909000990.exe
"C:\Users\Admin\AppData\Local\Temp\0909R0909000990.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TaoHPoi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB693.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2512
- C:\Users\Admin\AppData\Local\Temp\0909R0909000990.exe
  "{path}"
  2⤵
  - 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:1684
- - C:\Windows\SysWOW64\netsh.exe
    "netsh" wlan show profile
    3⤵
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Wi-Fi Discovery
    PID:2656

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

System Information Discovery

1

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB693.tmp

Filesize
1KB

MD5
ab37ba03905763e7151e3d0ec7d4face

SHA1
a7b9c5b4ba3aa9b69ad5971670a540049b63f3ba

SHA256
46f049b3f0bb068b880ccc219f85e977f2b4ce3242e6f4b74d217f5a1c2a8940

SHA512
4d5fc11dd33dedf3dd550e0fbecc22cff435e371206a4f968937a78b2eee112181fd7dc1e280270889559a57340e7ed15505db4be38c9721aa58116593efdb00

Download Submit
memory/1684-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1684-20-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-22-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1684-23-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1684-24-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1684-8-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-17-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-25-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/1684-10-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-11-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/1684-12-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2296-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2296-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2296-4-0x00000000009B0000-0x0000000000A08000-memory.dmp

Filesize
352KB

Download
memory/2296-3-0x0000000000200000-0x0000000000208000-memory.dmp

Filesize
32KB

Download
memory/2296-1-0x00000000011D0000-0x000000000125A000-memory.dmp

Filesize
552KB

Download
memory/2296-21-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads