orcus | 43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456

General

Target

43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe
Size

934KB
MD5

b4f9da6bb3d285ca5434e46cdf810f9a
SHA1

1ce3fa7613d043cabf11ef720a2eaaf44bec515f
SHA256

43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456
SHA512

44a91e305230853b20a40af4c3635e1a84b6862759f511be24b9102eb549179bcfd7c5656cfa22e7dd602f8f9ebdf754638c0f2fd1ca99e067841d78ac3abc1e
SSDEEP

12288:v0XCGPSX0zbyD+ndg+QCImGYUl9qyzlkE2kUNCcy782OV5ivMprmStz07dG1lFlL:3SO4MROxnFBLrrcI0AilFEvxHjVQ4Z

Score

10^/10

orcus persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

s7vety-47274.portmap.host:47274

Mutex

9b66c2abf6a74042aa75c51f01b5b0dc

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%temp%\Windows Updater\updateclient.exe
reconnect_delay
10000
registry_keyname
WindowsUpdater
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

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000015c2f-28.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2120-0-0x0000000000EE0000-0x0000000000FD0000-memory.dmp	orcus
behavioral1/files/0x0007000000015c2f-28.dat	orcus
behavioral1/memory/2416-33-0x0000000000EC0000-0x0000000000FB0000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2620	WindowsInput.exe
2572	WindowsInput.exe
2416	updateclient.exe
764	updateclient.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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsUpdater = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Windows Updater\\updateclient.exe\""	updateclient.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.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

description	pid	Process
Token: SeDebugPrivilege	2416	updateclient.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2620	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	28
PID 2120 wrote to memory of 2620	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	28
PID 2120 wrote to memory of 2620	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	28
PID 2120 wrote to memory of 2416	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	30
PID 2120 wrote to memory of 2416	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	30
PID 2120 wrote to memory of 2416	2120	43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe	30
PID 1708 wrote to memory of 764	1708	taskeng.exe	32
PID 1708 wrote to memory of 764	1708	taskeng.exe	32
PID 1708 wrote to memory of 764	1708	taskeng.exe	32

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\43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe
"C:\Users\Admin\AppData\Local\Temp\43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2620
- C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  PID:2416

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2572

C:\Windows\system32\taskeng.exe
taskeng.exe {CCDFB92F-487B-41D2-AA56-7809748099F9} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe
  "C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe"
  2⤵
  - Executes dropped EXE
  PID:764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Windows Updater\updateclient.exe

Filesize
934KB

MD5
b4f9da6bb3d285ca5434e46cdf810f9a

SHA1
1ce3fa7613d043cabf11ef720a2eaaf44bec515f

SHA256
43bb7f5aabd3203c6fa4f65ed37c3d2d4a9ac7138439f1fdebdf3f73c3275456

SHA512
44a91e305230853b20a40af4c3635e1a84b6862759f511be24b9102eb549179bcfd7c5656cfa22e7dd602f8f9ebdf754638c0f2fd1ca99e067841d78ac3abc1e

Download Submit
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/764-40-0x000000001AFF0000-0x000000001B070000-memory.dmp

Filesize
512KB

Download
memory/764-39-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/764-42-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2120-3-0x00000000005B0000-0x000000000060C000-memory.dmp

Filesize
368KB

Download
memory/2120-6-0x0000000000370000-0x0000000000378000-memory.dmp

Filesize
32KB

Download
memory/2120-5-0x0000000000390000-0x00000000003A2000-memory.dmp

Filesize
72KB

Download
memory/2120-4-0x0000000000340000-0x000000000034E000-memory.dmp

Filesize
56KB

Download
memory/2120-2-0x0000000000E60000-0x0000000000EE0000-memory.dmp

Filesize
512KB

Download
memory/2120-1-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2120-0-0x0000000000EE0000-0x0000000000FD0000-memory.dmp

Filesize
960KB

Download
memory/2120-31-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2416-36-0x00000000007F0000-0x0000000000808000-memory.dmp

Filesize
96KB

Download
memory/2416-41-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2416-32-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2416-46-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2416-33-0x0000000000EC0000-0x0000000000FB0000-memory.dmp

Filesize
960KB

Download
memory/2416-34-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2416-35-0x0000000000E30000-0x0000000000E7E000-memory.dmp

Filesize
312KB

Download
memory/2416-45-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2416-44-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2416-38-0x0000000000810000-0x0000000000820000-memory.dmp

Filesize
64KB

Download
memory/2572-21-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2572-43-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2572-22-0x0000000019510000-0x0000000019590000-memory.dmp

Filesize
512KB

Download
memory/2620-16-0x000000001B3C0000-0x000000001B440000-memory.dmp

Filesize
512KB

Download
memory/2620-14-0x0000000000E70000-0x0000000000E7C000-memory.dmp

Filesize
48KB

Download
memory/2620-15-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download
memory/2620-19-0x000007FEF5DA0000-0x000007FEF678C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads