Malware Analysis Report

2024-11-15 05:58

Sample ID 240404-kyh77sah8t
Target download (2).dat
SHA256 a5798e0229fe027c248cb9d8a2ec0c1b790e6f9e79f9a6f397acf9e2f0394d4a
Tags
rhadamanthys stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

a5798e0229fe027c248cb9d8a2ec0c1b790e6f9e79f9a6f397acf9e2f0394d4a

Threat Level: Known bad

The file download (2).dat was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-04 09:00

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 09:00

Reported

2024-04-04 09:01

Platform

win7-20231129-en

Max time kernel

16s

Max time network

17s

Command Line

C:\Windows\Explorer.EXE

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1720 created 1376 N/A C:\Users\Admin\AppData\Local\Temp\download (2).exe C:\Windows\Explorer.EXE

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\download (2).exe

"C:\Users\Admin\AppData\Local\Temp\download (2).exe"

C:\Windows\SysWOW64\dialer.exe

"C:\Windows\system32\dialer.exe"

Network

N/A

Files

memory/1720-0-0x00000000002A0000-0x000000000030D000-memory.dmp

memory/1720-1-0x0000000002F10000-0x0000000003310000-memory.dmp

memory/1720-2-0x0000000002F10000-0x0000000003310000-memory.dmp

memory/1720-3-0x0000000002F10000-0x0000000003310000-memory.dmp

memory/1720-4-0x0000000077970000-0x0000000077B19000-memory.dmp

memory/1720-6-0x0000000002F10000-0x0000000003310000-memory.dmp

memory/1720-7-0x00000000770F0000-0x0000000077137000-memory.dmp

memory/2892-8-0x0000000000100000-0x0000000000109000-memory.dmp

memory/1720-9-0x00000000002A0000-0x000000000030D000-memory.dmp

memory/2892-13-0x0000000077970000-0x0000000077B19000-memory.dmp

memory/2892-12-0x00000000007E0000-0x0000000000BE0000-memory.dmp

memory/2892-11-0x00000000007E0000-0x0000000000BE0000-memory.dmp

memory/2892-14-0x00000000007E0000-0x0000000000BE0000-memory.dmp

memory/2892-17-0x00000000770F0000-0x0000000077137000-memory.dmp

memory/2892-16-0x0000000077970000-0x0000000077B19000-memory.dmp

memory/2892-18-0x00000000007E0000-0x0000000000BE0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 09:00

Reported

2024-04-04 09:01

Platform

win10v2004-20240226-en

Max time kernel

36s

Max time network

42s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4244 created 2516 N/A C:\Users\Admin\AppData\Local\Temp\download (2).exe C:\Windows\system32\sihost.exe

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\dialer.exe N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Users\Admin\AppData\Local\Temp\download (2).exe

"C:\Users\Admin\AppData\Local\Temp\download (2).exe"

C:\Windows\SysWOW64\dialer.exe

"C:\Windows\system32\dialer.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 24.66.18.2.in-addr.arpa udp

Files

memory/4244-0-0x0000000000DC0000-0x0000000000E2D000-memory.dmp

memory/4244-1-0x0000000003600000-0x0000000003A00000-memory.dmp

memory/4244-2-0x0000000003600000-0x0000000003A00000-memory.dmp

memory/4244-3-0x0000000003600000-0x0000000003A00000-memory.dmp

memory/4244-5-0x0000000003600000-0x0000000003A00000-memory.dmp

memory/4244-4-0x00007FFE2F110000-0x00007FFE2F305000-memory.dmp

memory/4244-7-0x0000000076B30000-0x0000000076D45000-memory.dmp

memory/1520-8-0x00000000004F0000-0x00000000004F9000-memory.dmp

memory/4244-9-0x0000000000DC0000-0x0000000000E2D000-memory.dmp

memory/1520-12-0x00000000022F0000-0x00000000026F0000-memory.dmp

memory/1520-11-0x00000000022F0000-0x00000000026F0000-memory.dmp

memory/1520-13-0x00007FFE2F110000-0x00007FFE2F305000-memory.dmp

memory/1520-15-0x00000000022F0000-0x00000000026F0000-memory.dmp

memory/1520-16-0x0000000076B30000-0x0000000076D45000-memory.dmp

memory/1520-17-0x00000000022F0000-0x00000000026F0000-memory.dmp