orcus | 52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de

General

Target

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
Size

915KB
MD5

3f5d553fc7fd6cf287bcfacce9ecbe7d
SHA1

2b9fa4798907387094963d984f9539426cda6745
SHA256

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de
SHA512

a2b857e8343b69d2c7f3b78d64333b3eae41efc5a5180f636df08f9f60905fbbebf3a43a9deb75c866594390763fa66934cc330e72e54bfe90d3b421bc9afe10
SSDEEP

24576:veC4MROxnFD3tw8XlrrcI0AilFEvxHP9oo3:veMiJ/rrcI0AilFEvxHP

Score

10^/10

orcus 1 rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

1

C2

95.165.149.124:4444

Mutex

4977318a1cdb43478f26a78718953817

Attributes

autostart_method
TaskScheduler
enable_keylogger
true
install_path
%programfiles%\Microsoft\AudioHD\Driver\AudioHD.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Microsoft AudioHD
watchdog_path
AppData\AudioHD.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
\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe	family_orcus

Orcurs Rat Executable 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2912-0-0x0000000000A80000-0x0000000000B6A000-memory.dmp	orcus
\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe	orcus
behavioral1/memory/2592-36-0x0000000000C20000-0x0000000000D0A000-memory.dmp	orcus

Executes dropped EXE 6 IoCs

Processes:

WindowsInput.exeWindowsInput.exeAudioHD.exeAudioHD.exeAudioHD.exeAudioHD.exe

pid process

2564 WindowsInput.exe
2808 WindowsInput.exe
2592 AudioHD.exe
2716 AudioHD.exe
2760 AudioHD.exe
1044 AudioHD.exe

pid	process
2564	WindowsInput.exe
2808	WindowsInput.exe
2592	AudioHD.exe
2716	AudioHD.exe
2760	AudioHD.exe
1044	AudioHD.exe

Loads dropped DLL 4 IoCs

Processes:

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exeAudioHD.exeAudioHD.exe

pid	process
2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
2592	AudioHD.exe
2760	AudioHD.exe

Drops file in System32 directory 3 IoCs

Processes:

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exeWindowsInput.exe

description	ioc	process
File created	C:\Windows\SysWOW64\WindowsInput.exe	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

Processes:

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe.config	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
File created	C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
File opened for modification	C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

AudioHD.exeAudioHD.exe

pid	process
1044	AudioHD.exe
1044	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
2592	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe
1044	AudioHD.exe
2592	AudioHD.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

AudioHD.exeAudioHD.exeAudioHD.exe

description pid process

Token: SeDebugPrivilege 2592 AudioHD.exe
Token: SeDebugPrivilege 2760 AudioHD.exe
Token: SeDebugPrivilege 1044 AudioHD.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

AudioHD.exe

pid process

2592 AudioHD.exe

description	pid	process
Token: SeDebugPrivilege	2592	AudioHD.exe
Token: SeDebugPrivilege	2760	AudioHD.exe
Token: SeDebugPrivilege	1044	AudioHD.exe

pid	process
2592	AudioHD.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exetaskeng.exeAudioHD.exeAudioHD.exe

description	pid	process	target process
PID 2912 wrote to memory of 2564	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	WindowsInput.exe
PID 2912 wrote to memory of 2564	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	WindowsInput.exe
PID 2912 wrote to memory of 2564	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	WindowsInput.exe
PID 2912 wrote to memory of 2564	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	WindowsInput.exe
PID 2912 wrote to memory of 2592	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	AudioHD.exe
PID 2912 wrote to memory of 2592	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	AudioHD.exe
PID 2912 wrote to memory of 2592	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	AudioHD.exe
PID 2912 wrote to memory of 2592	2912	52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe	AudioHD.exe
PID 2896 wrote to memory of 2716	2896	taskeng.exe	AudioHD.exe
PID 2896 wrote to memory of 2716	2896	taskeng.exe	AudioHD.exe
PID 2896 wrote to memory of 2716	2896	taskeng.exe	AudioHD.exe
PID 2896 wrote to memory of 2716	2896	taskeng.exe	AudioHD.exe
PID 2592 wrote to memory of 2760	2592	AudioHD.exe	AudioHD.exe
PID 2592 wrote to memory of 2760	2592	AudioHD.exe	AudioHD.exe
PID 2592 wrote to memory of 2760	2592	AudioHD.exe	AudioHD.exe
PID 2592 wrote to memory of 2760	2592	AudioHD.exe	AudioHD.exe
PID 2760 wrote to memory of 1044	2760	AudioHD.exe	AudioHD.exe
PID 2760 wrote to memory of 1044	2760	AudioHD.exe	AudioHD.exe
PID 2760 wrote to memory of 1044	2760	AudioHD.exe	AudioHD.exe
PID 2760 wrote to memory of 1044	2760	AudioHD.exe	AudioHD.exe

C:\Users\Admin\AppData\Local\Temp\52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe
"C:\Users\Admin\AppData\Local\Temp\52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2912

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:2564

C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe
"C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2592

C:\Users\Admin\AppData\Roaming\AudioHD.exe
"C:\Users\Admin\AppData\Roaming\AudioHD.exe" /launchSelfAndExit "C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe" 2592 /protectFile
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2760

C:\Users\Admin\AppData\Roaming\AudioHD.exe
"C:\Users\Admin\AppData\Roaming\AudioHD.exe" /watchProcess "C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe" 2592 "/protectFile"
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1044

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2808

C:\Windows\system32\taskeng.exe
taskeng.exe {9CBD6DAC-71F0-44B3-B290-A3CA7A783288} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2896

C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe
"C:\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe"
2⤵
- Executes dropped EXE
PID:2716

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\SysWOW64\WindowsInput.exe.config
Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\Program Files (x86)\Microsoft\AudioHD\Driver\AudioHD.exe
Filesize
915KB

MD5
3f5d553fc7fd6cf287bcfacce9ecbe7d

SHA1
2b9fa4798907387094963d984f9539426cda6745

SHA256
52ba75535ee12f1940514bd049189bb2907e31560a3e4490268c6471dc38b2de

SHA512
a2b857e8343b69d2c7f3b78d64333b3eae41efc5a5180f636df08f9f60905fbbebf3a43a9deb75c866594390763fa66934cc330e72e54bfe90d3b421bc9afe10

Download Submit
\Users\Admin\AppData\Roaming\AudioHD.exe
Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
\Windows\SysWOW64\WindowsInput.exe
Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
memory/1044-63-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/1044-59-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2564-16-0x0000000000FE0000-0x0000000001060000-memory.dmp

Filesize
512KB

Download
memory/2564-19-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download
memory/2564-14-0x00000000010C0000-0x00000000010CC000-memory.dmp

Filesize
48KB

Download
memory/2564-15-0x000007FEF5E00000-0x000007FEF67EC000-memory.dmp

Filesize
9.9MB

Download
memory/2592-35-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-37-0x0000000004AC0000-0x0000000004B00000-memory.dmp

Filesize
256KB

Download
memory/2592-41-0x0000000004870000-0x0000000004880000-memory.dmp

Filesize
64KB

Download
memory/2592-40-0x0000000004370000-0x0000000004388000-memory.dmp

Filesize
96KB

Download
memory/2592-39-0x0000000004810000-0x000000000485E000-memory.dmp

Filesize
312KB

Download
memory/2592-62-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-38-0x0000000000420000-0x0000000000432000-memory.dmp

Filesize
72KB

Download
memory/2592-36-0x0000000000C20000-0x0000000000D0A000-memory.dmp

Filesize
936KB

Download
memory/2716-60-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-45-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2716-51-0x0000000004BC0000-0x0000000004C00000-memory.dmp

Filesize
256KB

Download
memory/2760-55-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-58-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-54-0x00000000010C0000-0x00000000010C8000-memory.dmp

Filesize
32KB

Download
memory/2808-61-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-23-0x0000000019A10000-0x0000000019A90000-memory.dmp

Filesize
512KB

Download
memory/2808-22-0x000007FEF5410000-0x000007FEF5DFC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-21-0x0000000001310000-0x000000000131C000-memory.dmp

Filesize
48KB

Download
memory/2912-34-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-2-0x0000000004B80000-0x0000000004BC0000-memory.dmp

Filesize
256KB

Download
memory/2912-3-0x0000000000270000-0x000000000027E000-memory.dmp

Filesize
56KB

Download
memory/2912-5-0x00000000003C0000-0x00000000003D2000-memory.dmp

Filesize
72KB

Download
memory/2912-1-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2912-4-0x00000000007D0000-0x000000000082C000-memory.dmp

Filesize
368KB

Download
memory/2912-0-0x0000000000A80000-0x0000000000B6A000-memory.dmp

Filesize
936KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads