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

Credentials

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

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 1 IoCs

resource	yara_rule
behavioral2/memory/2472-12-0x0000000000400000-0x0000000000452000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

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

rezer0

resource	yara_rule
behavioral2/memory/1376-7-0x0000000007500000-0x0000000007558000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	0909R0909000990.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 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-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1376 set thread context of 2472	1376	0909R0909000990.exe	84

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0909R0909000990.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
1716	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
4404	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2472	0909R0909000990.exe
2472	0909R0909000990.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	0909R0909000990.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1376 wrote to memory of 4404	1376	0909R0909000990.exe	82
PID 1376 wrote to memory of 4404	1376	0909R0909000990.exe	82
PID 1376 wrote to memory of 4404	1376	0909R0909000990.exe	82
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 1376 wrote to memory of 2472	1376	0909R0909000990.exe	84
PID 2472 wrote to memory of 1716	2472	0909R0909000990.exe	94
PID 2472 wrote to memory of 1716	2472	0909R0909000990.exe	94
PID 2472 wrote to memory of 1716	2472	0909R0909000990.exe	94

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	0909R0909000990.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1376
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TaoHPoi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9616.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4404
- 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:2472
- - 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:1716

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9616.tmp

Filesize
1KB

MD5
5bac8084071d69df05e83939f99fcefc

SHA1
4989e2d8325d5cbdb52c0a918bd04f68d1849bc8

SHA256
37c1b0a24ecd04b0a170120211b2cffd91429e9f74f412040de74c0e7ed0dc0a

SHA512
bf09137f6bc40a637e7c0a1dc01b6417fdc81d839502c7f08e81c7038bf0f711d0c219d98a0f923e4043192b266265d04db2caeba90a91ebe05c7a2009b53649

Download Submit
memory/1376-8-0x0000000007600000-0x000000000769C000-memory.dmp

Filesize
624KB

Download
memory/1376-5-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/1376-1-0x0000000000020000-0x00000000000AA000-memory.dmp

Filesize
552KB

Download
memory/1376-4-0x0000000004B30000-0x0000000004B3A000-memory.dmp

Filesize
40KB

Download
memory/1376-15-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/1376-6-0x0000000004F20000-0x0000000004F28000-memory.dmp

Filesize
32KB

Download
memory/1376-7-0x0000000007500000-0x0000000007558000-memory.dmp

Filesize
352KB

Download
memory/1376-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

Filesize
4KB

Download
memory/1376-3-0x0000000004A70000-0x0000000004B02000-memory.dmp

Filesize
584KB

Download
memory/1376-2-0x0000000005110000-0x00000000056B4000-memory.dmp

Filesize
5.6MB

Download
memory/2472-14-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2472-12-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/2472-16-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2472-17-0x0000000005200000-0x0000000005218000-memory.dmp

Filesize
96KB

Download
memory/2472-18-0x00000000058F0000-0x0000000005956000-memory.dmp

Filesize
408KB

Download
memory/2472-19-0x00000000749D0000-0x0000000075180000-memory.dmp

Filesize
7.7MB

Download
memory/2472-20-0x0000000006600000-0x0000000006650000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads