agenttesla | 5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daeb

General

Target

5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
Size

552KB
MD5

33a842e93503daf9c7317b872f560e00
SHA1

d5666e437756c645f19c32e999ea914730153d8c
SHA256

5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daeb
SHA512

a976ee40b65c8cfbfc5cb8bc836ff5414ed1d746b2f562fbf963e9e601a5bb6db554a7394bc92478a91c76f80d8b1bf5fc77f7cc8802fddf31f873808ada70d2
SSDEEP

12288:ipZJK2p0FjAPHDN5u3ROd1Qte2r8F64fPa4EYOJNOipwjYrj0GAWEKY9m3udnsz:0ZJKfAbX0UKe2r8Y464EXJNOewjYroGT

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence privilege_escalation rezer0 spyware stealer trojan

Malware Config

Extracted

Credentials

Protocol: smtp
Host:
mail.suncurepelletmill.com
Port:
587
Username:
[email protected]
Password:
pellet2013

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.suncurepelletmill.com
Port:
587
Username:
[email protected]
Password:
pellet2013

Signatures

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

AgentTesla payload 1 IoCs

resource	yara_rule
behavioral2/memory/5100-15-0x0000000000400000-0x0000000000452000-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/4960-11-0x0000000007240000-0x0000000007298000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.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-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4960 set thread context of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103

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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.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
2060	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
1932	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
Token: SeDebugPrivilege	5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4960 wrote to memory of 1932	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	101
PID 4960 wrote to memory of 1932	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	101
PID 4960 wrote to memory of 1932	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	101
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 4960 wrote to memory of 5100	4960	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	103
PID 5100 wrote to memory of 2060	5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	105
PID 5100 wrote to memory of 2060	5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	105
PID 5100 wrote to memory of 2060	5100	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe	105

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe

C:\Users\Admin\AppData\Local\Temp\5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
"C:\Users\Admin\AppData\Local\Temp\5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4960
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lwDrijUyFDDr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp40EC.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1932
- C:\Users\Admin\AppData\Local\Temp\5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  - outlook_win_path
  PID:5100
- - 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:2060

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\Microsoft\CLR_v4.0_32\UsageLogs\5f9d5a7a0fbfe01d4d3a2de05364fc55ec765c90d13a2fc93be6448b8770daebN.exe.log

Filesize
1KB

MD5
400f1cc1a0a0ce1cdabda365ab3368ce

SHA1
1ecf683f14271d84f3b6063493dce00ff5f42075

SHA256
c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

SHA512
14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp40EC.tmp

Filesize
1KB

MD5
94b12089d05c48d59b5dec40f3776c05

SHA1
f3e09ffea23e35886add2bd36debd1e6069d35b5

SHA256
140c675c24f438898cccecc989f36cfac30b2a2a7dfe2aa90dcc212685eb54b0

SHA512
8c65e50b6da5ed276eb2ca4fba0dfbb8ce3e1d822d489c5938d4a480589d1341154042c148e75b68a9ce3d619a72d16f44daea6413f7426c42d62fdddde1ae02

Download Submit
memory/4960-6-0x0000000005DE0000-0x0000000005DEA000-memory.dmp

Filesize
40KB

Download
memory/4960-4-0x0000000005E00000-0x0000000005E92000-memory.dmp

Filesize
584KB

Download
memory/4960-2-0x0000000007DE0000-0x0000000007E52000-memory.dmp

Filesize
456KB

Download
memory/4960-5-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4960-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/4960-7-0x00000000061B0000-0x00000000061C4000-memory.dmp

Filesize
80KB

Download
memory/4960-8-0x00000000072A0000-0x000000000733C000-memory.dmp

Filesize
624KB

Download
memory/4960-9-0x00000000747DE000-0x00000000747DF000-memory.dmp

Filesize
4KB

Download
memory/4960-1-0x0000000000F00000-0x0000000000F92000-memory.dmp

Filesize
584KB

Download
memory/4960-11-0x0000000007240000-0x0000000007298000-memory.dmp

Filesize
352KB

Download
memory/4960-19-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/4960-3-0x0000000006210000-0x00000000067B4000-memory.dmp

Filesize
5.6MB

Download
memory/4960-10-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-18-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-26-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-20-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-21-0x0000000005180000-0x0000000005198000-memory.dmp

Filesize
96KB

Download
memory/5100-22-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/5100-23-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-24-0x0000000006360000-0x00000000063B0000-memory.dmp

Filesize
320KB

Download
memory/5100-25-0x00000000747D0000-0x0000000074F80000-memory.dmp

Filesize
7.7MB

Download
memory/5100-15-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads