Malware Analysis Report

2025-01-22 14:49

Sample ID 241202-blawma1qb1
Target cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924
SHA256 cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924
Tags
meow orcus discovery rat spyware 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

cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924

Threat Level: Known bad

The file cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924 was found to be: Known bad.

Malicious Activity Summary

meow orcus discovery rat spyware stealer

Orcus family

Orcus main payload

Orcurs Rat Executable

Orcus

Orcurs Rat Executable

Reads data files stored by FTP clients

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Reads WinSCP keys stored on the system

Reads user/profile data of web browsers

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-02 01:13

Signatures

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-02 01:13

Reported

2024-12-02 01:16

Platform

win7-20240708-en

Max time kernel

127s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2960 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2960 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2960 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2960 wrote to memory of 2104 N/A C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 2676 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 2676 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 2676 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 2676 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1432 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1432 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1432 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1432 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1924 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1924 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1924 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe
PID 2788 wrote to memory of 1924 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe

"C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe"

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

"C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {9F76023B-48BD-4547-9EF4-B5AFEC44DD54} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 62676.client.sudorat.top udp
RU 185.37.62.158:62676 62676.client.sudorat.top tcp
N/A 127.0.0.1:1111 tcp

Files

memory/2960-0-0x00000000744FE000-0x00000000744FF000-memory.dmp

memory/2960-1-0x00000000008F0000-0x0000000000BEE000-memory.dmp

memory/2960-2-0x00000000003B0000-0x00000000003BE000-memory.dmp

memory/2960-3-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/2960-4-0x0000000000830000-0x000000000088C000-memory.dmp

memory/2960-5-0x0000000000400000-0x0000000000412000-memory.dmp

\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

MD5 92e8237b684a86a17b61183af6588b05
SHA1 dfb87ecc85b2bf81119cde5f81e3e3d71e6158fc
SHA256 cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924
SHA512 c6824826d496f1ba9057f6aeb3e0c30cec3dc5da6889a3d4de1f1b1d19be6a9aa50c4cbe73e159411b6eb899a704e20a3b7dce3f6beffc5a93e85a820d373b69

memory/2960-17-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/2104-16-0x00000000744F0000-0x0000000074BDE000-memory.dmp

memory/2104-18-0x00000000001F0000-0x00000000004EE000-memory.dmp

memory/2104-19-0x00000000744F0000-0x0000000074BDE000-memory.dmp

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2104-21-0x00000000050C0000-0x000000000510E000-memory.dmp

memory/2104-20-0x0000000000850000-0x0000000000862000-memory.dmp

memory/2104-22-0x0000000004490000-0x00000000044A8000-memory.dmp

memory/2104-23-0x0000000004E60000-0x0000000004E70000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\CabABDB.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

memory/2104-41-0x00000000051A0000-0x00000000051AE000-memory.dmp

memory/2104-42-0x00000000058F0000-0x00000000058F2000-memory.dmp

memory/2104-43-0x00000000744F0000-0x0000000074BDE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-02 01:13

Reported

2024-12-02 01:16

Platform

win10v2004-20241007-en

Max time kernel

127s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe"

Signatures

Orcus

rat spyware stealer orcus

Orcus family

orcus

Orcus main payload

Description Indicator Process Target
N/A N/A N/A N/A

Orcurs Rat Executable

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe N/A

Reads WinSCP keys stored on the system

spyware stealer

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe

"C:\Users\Admin\AppData\Local\Temp\cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924.exe"

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

"C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe"

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 62676.client.sudorat.top udp
RU 185.37.62.158:62676 62676.client.sudorat.top tcp
US 8.8.8.8:53 158.62.37.185.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 127.0.0.1:1111 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/1596-0-0x000000007472E000-0x000000007472F000-memory.dmp

memory/1596-1-0x00000000003F0000-0x00000000006EE000-memory.dmp

memory/1596-2-0x0000000005040000-0x000000000504E000-memory.dmp

memory/1596-4-0x0000000005090000-0x00000000050EC000-memory.dmp

memory/1596-3-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/1596-5-0x0000000005A50000-0x0000000005FF4000-memory.dmp

memory/1596-6-0x00000000054A0000-0x0000000005532000-memory.dmp

memory/1596-7-0x00000000053A0000-0x00000000053B2000-memory.dmp

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe

MD5 92e8237b684a86a17b61183af6588b05
SHA1 dfb87ecc85b2bf81119cde5f81e3e3d71e6158fc
SHA256 cc62f528321a982a0a4925b02fab1fc14047242df2cde9274fc447606e4e8924
SHA512 c6824826d496f1ba9057f6aeb3e0c30cec3dc5da6889a3d4de1f1b1d19be6a9aa50c4cbe73e159411b6eb899a704e20a3b7dce3f6beffc5a93e85a820d373b69

C:\Users\Admin\AppData\Roaming\Bluestacks_nxt\Bluestacks.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/2992-23-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/1596-24-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/2992-25-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/2992-26-0x0000000005950000-0x000000000599E000-memory.dmp

memory/2992-27-0x00000000060E0000-0x00000000060F8000-memory.dmp

memory/2992-29-0x00000000063C0000-0x00000000063D0000-memory.dmp

memory/64-31-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/2992-30-0x00000000065A0000-0x00000000065AA000-memory.dmp

memory/64-32-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/2992-35-0x0000000006D60000-0x0000000006DC6000-memory.dmp

memory/2992-36-0x00000000075A0000-0x0000000007BB8000-memory.dmp

memory/2992-37-0x0000000006DF0000-0x0000000006E02000-memory.dmp

memory/2992-38-0x0000000006FC0000-0x0000000006FFC000-memory.dmp

memory/2992-39-0x0000000007000000-0x000000000704C000-memory.dmp

memory/2992-40-0x0000000007160000-0x000000000726A000-memory.dmp

memory/2992-41-0x0000000007BC0000-0x0000000007D82000-memory.dmp

memory/2992-42-0x0000000007110000-0x000000000711E000-memory.dmp

memory/2992-43-0x0000000007420000-0x00000000074BC000-memory.dmp

memory/2992-44-0x0000000007550000-0x00000000075A0000-memory.dmp

memory/64-46-0x0000000074720000-0x0000000074ED0000-memory.dmp

memory/2992-47-0x0000000074720000-0x0000000074ED0000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Bluestacks.exe.log

MD5 0672db2ef13237d5cb85075ff4915942
SHA1 ad8b4d3eb5e40791c47d48b22e273486f25f663f
SHA256 0a933408890369b5a178f9c30aa93d2c94f425650815cf8e8310de4e90a3b519
SHA512 84ad10ba5b695567d33a52f786405a5544aa49d8d23631ba9edf3afa877c5dbd81570d15bcf74bce5d9fb1afad2117d0a4ef913b396c0d923afefe615619c84b