orcus | 87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c

Analysis

max time kernel
147s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
09-06-2024 01:16

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General

Target

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
Size

912KB
MD5

40d323b48e02a159e2902bba5d60d585
SHA1

a7e40602a8172e1f5f501e5400346724a7eb8ca1
SHA256

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c
SHA512

162b6fab5a760a94cead19f1d4b982a187ba08621ba495685a62e858714f1012ab25428e14eba72d82dcfa445a9805c42c52b1352e9ff44bba8579c07e103287
SSDEEP

24576:Dam4MROxnFrFPurerrcI0AilFEvxHPmUFoop:DOMiMerrcI0AilFEvxHPmU

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

192.168.1.56:10134

Mutex

e9854b98f65745a89d715a85a4ff1de8

Attributes

autostart_method
Disable
enable_keylogger
true
install_path
%programfiles%\Orcus\Orcus.exe
reconnect_delay
10000
registry_keyname
Orcus
taskscheduler_taskname
Orcus
watchdog_path
AppData\OrcusWatchdog.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcurs Rat Executable 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/2348-1-0x0000000000F70000-0x000000000105A000-memory.dmp orcus

resource	yara_rule
behavioral2/memory/2348-1-0x0000000000F70000-0x000000000105A000-memory.dmp	orcus

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

Executes dropped EXE 2 IoCs

Processes:

WindowsInput.exeWindowsInput.exe

pid process

3544 WindowsInput.exe
1040 WindowsInput.exe

pid	process
3544	WindowsInput.exe
1040	WindowsInput.exe

Drops file in System32 directory 3 IoCs

Processes:

WindowsInput.exe87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

description	ioc	process
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

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

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

description pid process

Token: SeDebugPrivilege 2348 87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid process

2348 87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid process

2348 87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid process

2348 87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

description	pid	process
Token: SeDebugPrivilege	2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid	process
2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid	process
2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

pid	process
2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe

description	pid	process	target process
PID 2348 wrote to memory of 3544	2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe	WindowsInput.exe
PID 2348 wrote to memory of 3544	2348	87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe	WindowsInput.exe

C:\Users\Admin\AppData\Local\Temp\87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe
"C:\Users\Admin\AppData\Local\Temp\87f7c9621a398d1463e9b6e095704ce6a1d63f55ba8a6c88fdbef6dca7e7232c.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2348

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe" --install
2⤵
- Executes dropped EXE
- Drops file in System32 directory
PID:3544

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:1040

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\SysWOW64\WindowsInput.exe
Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

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

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
memory/1040-40-0x00007FFF07720000-0x00007FFF081E1000-memory.dmp

Filesize
10.8MB

Download
memory/1040-33-0x000000001B0E0000-0x000000001B1EA000-memory.dmp

Filesize
1.0MB

Download
memory/1040-32-0x00007FFF07720000-0x00007FFF081E1000-memory.dmp

Filesize
10.8MB

Download
memory/2348-6-0x0000000005B70000-0x0000000005C02000-memory.dmp

Filesize
584KB

Download
memory/2348-1-0x0000000000F70000-0x000000000105A000-memory.dmp

Filesize
936KB

Download
memory/2348-7-0x0000000005B50000-0x0000000005B62000-memory.dmp

Filesize
72KB

Download
memory/2348-8-0x0000000005FC0000-0x0000000005FE2000-memory.dmp

Filesize
136KB

Download
memory/2348-5-0x0000000006020000-0x00000000065C4000-memory.dmp

Filesize
5.6MB

Download
memory/2348-4-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2348-0-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/2348-35-0x0000000006D90000-0x0000000006F52000-memory.dmp

Filesize
1.8MB

Download
memory/2348-39-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/2348-38-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/2348-37-0x0000000006D10000-0x0000000006D1A000-memory.dmp

Filesize
40KB

Download
memory/2348-36-0x0000000006BD0000-0x0000000006BE0000-memory.dmp

Filesize
64KB

Download
memory/2348-3-0x0000000005A10000-0x0000000005A6C000-memory.dmp

Filesize
368KB

Download
memory/2348-2-0x0000000005900000-0x000000000590E000-memory.dmp

Filesize
56KB

Download
memory/2348-34-0x0000000006A40000-0x0000000006A58000-memory.dmp

Filesize
96KB

Download
memory/3544-22-0x0000000000210000-0x000000000021C000-memory.dmp

Filesize
48KB

Download
memory/3544-30-0x00007FFF07720000-0x00007FFF081E1000-memory.dmp

Filesize
10.8MB

Download
memory/3544-25-0x000000001ACA0000-0x000000001ACB2000-memory.dmp

Filesize
72KB

Download
memory/3544-26-0x000000001AE00000-0x000000001AE3C000-memory.dmp

Filesize
240KB

Download
memory/3544-24-0x00007FFF07720000-0x00007FFF081E1000-memory.dmp

Filesize
10.8MB

Download
memory/3544-23-0x00007FFF07723000-0x00007FFF07725000-memory.dmp

Filesize
8KB

Download