orcus | d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4

Analysis

max time kernel
134s
max time network
147s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
28-07-2024 01:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe
Size

3.0MB
MD5

a904538c9a37ec92bd9f152e48d70629
SHA1

a9b87b357b3cc41c01ab33ea04281babf1d80d56
SHA256

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4
SHA512

34abc573e2f405fd036ea027ee979993a771f4be888075741b6033777769e1d2c30102336eb7df555a7b042f2e8c2ee8cf908a546e99b97638f07c6189231bfd
SSDEEP

49152:Cs7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpau/nRFfjI7L0qb:CsHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus fixrat credential_access discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

FixRat

31.44.184.52:54370

Mutex

sudo_7kz7er6675f4d9qdspyd5zzhxt61n0f2

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\securecdn\publiccdn.exe
reconnect_delay
10000
registry_keyname
Sudik
taskscheduler_taskname
sudik
watchdog_path
AppData\aga.exe

Signatures

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

Orcus main payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x000c000000017559-12.dat	family_orcus

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Orcurs Rat Executable 10 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2700-1-0x0000000000840000-0x0000000000B3E000-memory.dmp	orcus
behavioral1/files/0x000c000000017559-12.dat	orcus
behavioral1/memory/2844-17-0x0000000001360000-0x000000000165E000-memory.dmp	orcus
behavioral1/memory/2864-31-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2864-28-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2864-34-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2864-33-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2864-26-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus
behavioral1/memory/2184-69-0x0000000000160000-0x000000000045E000-memory.dmp	orcus
behavioral1/memory/1888-71-0x00000000003B0000-0x00000000006AE000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

Processes:

publiccdn.exepubliccdn.exepubliccdn.exepubliccdn.exe

pid	Process
2844	publiccdn.exe
2512	publiccdn.exe
2184	publiccdn.exe
1888	publiccdn.exe

Loads dropped DLL 1 IoCs

Processes:

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe

pid	Process
2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 2 IoCs

Processes:

publiccdn.exepubliccdn.exe

description	pid	Process	procid_target
PID 2844 set thread context of 2864	2844	publiccdn.exe	32
PID 2512 set thread context of 1940	2512	publiccdn.exe	34

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 7 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

Processes:

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exepubliccdn.exepubliccdn.exeregasm.execaspol.exepubliccdn.exepubliccdn.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	publiccdn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	publiccdn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caspol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	publiccdn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	publiccdn.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exepubliccdn.exepubliccdn.exeregasm.exe

pid	Process
2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe
2844	publiccdn.exe
2844	publiccdn.exe
2512	publiccdn.exe
2512	publiccdn.exe
2864	regasm.exe
2864	regasm.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exepubliccdn.exepubliccdn.exeregasm.exe

description	pid	Process
Token: SeDebugPrivilege	2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe
Token: SeDebugPrivilege	2844	publiccdn.exe
Token: SeDebugPrivilege	2512	publiccdn.exe
Token: SeDebugPrivilege	2864	regasm.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exetaskeng.exepubliccdn.exepubliccdn.exe

description	pid	Process	procid_target
PID 2700 wrote to memory of 2844	2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe	30
PID 2700 wrote to memory of 2844	2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe	30
PID 2700 wrote to memory of 2844	2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe	30
PID 2700 wrote to memory of 2844	2700	d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe	30
PID 2648 wrote to memory of 2512	2648	taskeng.exe	33
PID 2648 wrote to memory of 2512	2648	taskeng.exe	33
PID 2648 wrote to memory of 2512	2648	taskeng.exe	33
PID 2648 wrote to memory of 2512	2648	taskeng.exe	33
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2844 wrote to memory of 2864	2844	publiccdn.exe	32
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2512 wrote to memory of 1940	2512	publiccdn.exe	34
PID 2648 wrote to memory of 2184	2648	taskeng.exe	36
PID 2648 wrote to memory of 2184	2648	taskeng.exe	36
PID 2648 wrote to memory of 2184	2648	taskeng.exe	36
PID 2648 wrote to memory of 2184	2648	taskeng.exe	36
PID 2648 wrote to memory of 1888	2648	taskeng.exe	37
PID 2648 wrote to memory of 1888	2648	taskeng.exe	37
PID 2648 wrote to memory of 1888	2648	taskeng.exe	37
PID 2648 wrote to memory of 1888	2648	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe
"C:\Users\Admin\AppData\Local\Temp\d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  "C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2864

C:\Windows\system32\taskeng.exe
taskeng.exe {A425EB8A-C41B-44D9-84D1-9D510C8B0EA4} S-1-5-21-2172136094-3310281978-782691160-1000:EXCFTDUU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2648
- C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2512
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1940
- C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2184
- C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab5C65.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\securecdn\publiccdn.exe

Filesize
3.0MB

MD5
a904538c9a37ec92bd9f152e48d70629

SHA1
a9b87b357b3cc41c01ab33ea04281babf1d80d56

SHA256
d73f2f3fa297db9ec498c7d178e3734415e11d3024f8eb2ea5aece6f006f9ec4

SHA512
34abc573e2f405fd036ea027ee979993a771f4be888075741b6033777769e1d2c30102336eb7df555a7b042f2e8c2ee8cf908a546e99b97638f07c6189231bfd

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

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1888-71-0x00000000003B0000-0x00000000006AE000-memory.dmp

Filesize
3.0MB

Download
memory/1940-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2184-69-0x0000000000160000-0x000000000045E000-memory.dmp

Filesize
3.0MB

Download
memory/2700-16-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2700-5-0x00000000005E0000-0x00000000005F2000-memory.dmp

Filesize
72KB

Download
memory/2700-4-0x00000000006E0000-0x000000000073C000-memory.dmp

Filesize
368KB

Download
memory/2700-3-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2700-0-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/2700-2-0x0000000000450000-0x000000000045E000-memory.dmp

Filesize
56KB

Download
memory/2700-1-0x0000000000840000-0x0000000000B3E000-memory.dmp

Filesize
3.0MB

Download
memory/2844-19-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-18-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-17-0x0000000001360000-0x000000000165E000-memory.dmp

Filesize
3.0MB

Download
memory/2844-20-0x00000000008C0000-0x000000000090E000-memory.dmp

Filesize
312KB

Download
memory/2844-32-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-24-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-34-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-33-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-26-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-28-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-47-0x00000000003F0000-0x0000000000402000-memory.dmp

Filesize
72KB

Download
memory/2864-48-0x0000000000760000-0x0000000000778000-memory.dmp

Filesize
96KB

Download
memory/2864-49-0x00000000007A0000-0x00000000007B0000-memory.dmp

Filesize
64KB

Download
memory/2864-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-66-0x00000000010A0000-0x00000000010AE000-memory.dmp

Filesize
56KB

Download
memory/2864-67-0x0000000002510000-0x0000000002512000-memory.dmp

Filesize
8KB

Download
memory/2864-31-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/2864-22-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download