Malware Analysis Report

2025-03-15 06:55

Sample ID 231218-b43pcsgebj
Target b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d
SHA256 b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d
Tags
orcus rat spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d

Threat Level: Known bad

The file b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d was found to be: Known bad.

Malicious Activity Summary

orcus rat spyware stealer

Orcurs Rat Executable

Orcus family

Orcus

Orcurs Rat Executable

Checks computer location settings

Executes dropped EXE

Drops file in Program Files directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-18 01:42

Signatures

Orcurs Rat Executable

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

Orcus family

orcus

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-18 01:42

Reported

2023-12-18 01:45

Platform

win10v2004-20231215-en

Max time kernel

141s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"

Signatures

Orcus

rat spyware stealer orcus

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files\Orcus\Orcus.exe N/A
N/A N/A C:\Program Files\Orcus\Orcus.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A
File opened for modification C:\Program Files\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A
File created C:\Program Files\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files\Orcus\Orcus.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe

"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 22.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
N/A 192.168.1.95:10134 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 following-s.gl.at.ply.gg udp
US 147.185.221.17:46267 following-s.gl.at.ply.gg tcp
US 8.8.8.8:53 17.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 204.201.50.20.in-addr.arpa udp

Files

memory/3632-0-0x0000027E87E60000-0x0000027E88158000-memory.dmp

memory/3632-1-0x0000027EA2650000-0x0000027EA26AC000-memory.dmp

memory/3632-3-0x0000027E89F40000-0x0000027E89F4E000-memory.dmp

memory/3632-2-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/3632-4-0x0000027E89F50000-0x0000027E89F60000-memory.dmp

memory/3632-5-0x0000027EA26C0000-0x0000027EA26D2000-memory.dmp

C:\Program Files\Orcus\Orcus.exe

MD5 46490216fdf0efff1bc81e431a1fa7e4
SHA1 563eef6b45ecd75c8bb72c5e41bb536a2f59f57f
SHA256 b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d
SHA512 c2b864efffeb5389a5877b8e03108de7f613e933871e412e9b1ba09bb512f8bbbcaa1e8c8ba249dacb2d70fa5ca618abe3e02ab64f146ae6f98fc434348a5b4c

C:\Program Files\Orcus\Orcus.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

C:\Program Files\Orcus\Orcus.exe

MD5 2a1d73da658f40ea9e0b6fa3bd4a63fa
SHA1 3b61ba5713e9cbf38bc764d7361050f9a162beb9
SHA256 a7ffe644a1606e290d50fb8d19ba34f14b9bbe8d890c3e856202fc693c07e5b3
SHA512 4fcfa419e65c0f45bb4b3766b21b6edc88cd78b98bebdaa20d681a985c0c960f00ac5ecad3814029b5fee4c13321fe09acc380f406aae265347142dd97961bf1

memory/3632-22-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/2332-21-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/2332-23-0x0000028667120000-0x0000028667130000-memory.dmp

memory/2332-24-0x0000028669220000-0x0000028669278000-memory.dmp

memory/2332-26-0x0000028667150000-0x0000028667168000-memory.dmp

memory/4028-27-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/2332-28-0x0000028667310000-0x0000028667320000-memory.dmp

memory/4028-29-0x00000189F7500000-0x00000189F7510000-memory.dmp

memory/4028-31-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/2332-32-0x00007FFEBD1C0000-0x00007FFEBDC81000-memory.dmp

memory/2332-33-0x0000028667120000-0x0000028667130000-memory.dmp

memory/2332-34-0x0000028669B00000-0x0000028669B12000-memory.dmp

memory/2332-35-0x0000028669B60000-0x0000028669B9C000-memory.dmp

memory/2332-36-0x0000028669CB0000-0x0000028669DBA000-memory.dmp

memory/2332-37-0x0000028669F90000-0x000002866A152000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-18 01:42

Reported

2023-12-18 01:45

Platform

win7-20231215-en

Max time kernel

121s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"

Signatures

Orcus

rat spyware stealer orcus

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Program Files\Orcus\Orcus.exe N/A
N/A N/A C:\Program Files\Orcus\Orcus.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A
File opened for modification C:\Program Files\Orcus\Orcus.exe C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A
File created C:\Program Files\Orcus\Orcus.exe.config C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Program Files\Orcus\Orcus.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe

"C:\Users\Admin\AppData\Local\Temp\b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d.exe"

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {0B68E1E9-9630-4844-BF21-FD3BCA4D234B} S-1-5-21-3308111660-3636268597-2291490419-1000:JUBFGPHD\Admin:Interactive:[1]

C:\Program Files\Orcus\Orcus.exe

"C:\Program Files\Orcus\Orcus.exe"

Network

Country Destination Domain Proto
N/A 192.168.1.95:10134 tcp
US 8.8.8.8:53 following-s.gl.at.ply.gg udp
US 147.185.221.17:46267 following-s.gl.at.ply.gg tcp

Files

memory/1088-0-0x0000000000C20000-0x0000000000F18000-memory.dmp

memory/1088-2-0x000000001B1B0000-0x000000001B230000-memory.dmp

memory/1088-1-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

memory/1088-3-0x0000000000A90000-0x0000000000AEC000-memory.dmp

memory/1088-4-0x00000000003D0000-0x00000000003DE000-memory.dmp

memory/1088-5-0x0000000000B90000-0x0000000000BA2000-memory.dmp

C:\Program Files\Orcus\Orcus.exe

MD5 46490216fdf0efff1bc81e431a1fa7e4
SHA1 563eef6b45ecd75c8bb72c5e41bb536a2f59f57f
SHA256 b8f44264494df8fe4903aecd11057cdb9c7abff177a5cf6c8e37fc582ae2be0d
SHA512 c2b864efffeb5389a5877b8e03108de7f613e933871e412e9b1ba09bb512f8bbbcaa1e8c8ba249dacb2d70fa5ca618abe3e02ab64f146ae6f98fc434348a5b4c

C:\Program Files\Orcus\Orcus.exe.config

MD5 a2b76cea3a59fa9af5ea21ff68139c98
SHA1 35d76475e6a54c168f536e30206578babff58274
SHA256 f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512 b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

memory/1088-14-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

memory/2692-16-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

memory/2692-15-0x0000000000D40000-0x0000000001038000-memory.dmp

memory/2692-17-0x000000001B420000-0x000000001B4A0000-memory.dmp

memory/2692-18-0x0000000000600000-0x0000000000658000-memory.dmp

memory/2692-19-0x0000000000C90000-0x0000000000CA8000-memory.dmp

memory/2584-21-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

memory/2692-22-0x0000000000C00000-0x0000000000C10000-memory.dmp

memory/2584-23-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab8B03.tmp

MD5 ac05d27423a85adc1622c714f2cb6184
SHA1 b0fe2b1abddb97837ea0195be70ab2ff14d43198
SHA256 c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d
SHA512 6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

memory/2692-40-0x000007FEF5820000-0x000007FEF620C000-memory.dmp

memory/2692-41-0x000000001B420000-0x000000001B4A0000-memory.dmp