orcus | a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77

General

Target

a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe
Size

3.2MB
MD5

ba673cd29119974eba5c7a7173480e89
SHA1

12c7db1b85f2e422faa28dd802a42470ce33bb8d
SHA256

a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77
SHA512

e2d2ae4db1ed50a0aa8f8183454fede7a915b8d0c6f19fbc51e851c53fbd850880d7a350915825c29f5a619da4d8bfd2b9b8eef47ef14e3306097a101e475d47
SSDEEP

49152:EoWN8QFUwqYZeM9/ZzzBjMkPUayX82+YXAypQxb9ndo9JnCmGWncFf0I74gu3vMv:Ep0wGGzBjryX82uypSb9ndo9JCmc

Score

10^/10

orcus persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

192.168.56.1:10134

Mutex

cf2702edb1ff4197a537ecb675c687d0

Attributes

autostart_method
Registry
enable_keylogger
false
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 2 IoCs

resource	yara_rule
behavioral2/memory/400-1-0x00000254906A0000-0x00000254909DC000-memory.dmp	orcus
behavioral2/files/0x00070000000233f6-37.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe

Executes dropped EXE 3 IoCs

pid	Process
3372	WindowsInput.exe
1004	WindowsInput.exe
3092	Orcus.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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Orcus = "\"C:\\Program Files\\Orcus\\Orcus.exe\""	Orcus.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Orcus\Orcus.exe	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe
File opened for modification	C:\Program Files\Orcus\Orcus.exe	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe
File created	C:\Program Files\Orcus\Orcus.exe.config	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 400 wrote to memory of 3372	400	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe	82
PID 400 wrote to memory of 3372	400	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe	82
PID 400 wrote to memory of 3092	400	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe	87
PID 400 wrote to memory of 3092	400	a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe	87

C:\Users\Admin\AppData\Local\Temp\a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe
"C:\Users\Admin\AppData\Local\Temp\a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:400
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:3372
- C:\Program Files\Orcus\Orcus.exe
  "C:\Program Files\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:3092

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:1004

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Orcus\Orcus.exe

Filesize
3.2MB

MD5
ba673cd29119974eba5c7a7173480e89

SHA1
12c7db1b85f2e422faa28dd802a42470ce33bb8d

SHA256
a863bd17dfbc29c69ff0246665604bd99811b63cd2fd22bfd97c2c7715218e77

SHA512
e2d2ae4db1ed50a0aa8f8183454fede7a915b8d0c6f19fbc51e851c53fbd850880d7a350915825c29f5a619da4d8bfd2b9b8eef47ef14e3306097a101e475d47

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/400-5-0x0000025490F60000-0x0000025490F72000-memory.dmp

Filesize
72KB

Download
memory/400-47-0x00007FFBF7FF0000-0x00007FFBF8AB1000-memory.dmp

Filesize
10.8MB

Download
memory/400-0-0x00007FFBF7FF3000-0x00007FFBF7FF5000-memory.dmp

Filesize
8KB

Download
memory/400-3-0x0000025490D80000-0x0000025490D8E000-memory.dmp

Filesize
56KB

Download
memory/400-4-0x00007FFBF7FF0000-0x00007FFBF8AB1000-memory.dmp

Filesize
10.8MB

Download
memory/400-2-0x0000025492850000-0x00000254928AC000-memory.dmp

Filesize
368KB

Download
memory/400-1-0x00000254906A0000-0x00000254909DC000-memory.dmp

Filesize
3.2MB

Download
memory/1004-31-0x000001FC76960000-0x000001FC76A6A000-memory.dmp

Filesize
1.0MB

Download
memory/3092-49-0x000001ED6A040000-0x000001ED6A098000-memory.dmp

Filesize
352KB

Download
memory/3092-48-0x000001ED69650000-0x000001ED69662000-memory.dmp

Filesize
72KB

Download
memory/3092-50-0x000001ED69740000-0x000001ED69758000-memory.dmp

Filesize
96KB

Download
memory/3092-51-0x000001ED69640000-0x000001ED69650000-memory.dmp

Filesize
64KB

Download
memory/3372-23-0x000001E1F4530000-0x000001E1F4542000-memory.dmp

Filesize
72KB

Download
memory/3372-24-0x000001E1F5D60000-0x000001E1F5D9C000-memory.dmp

Filesize
240KB

Download
memory/3372-25-0x00007FFBF7FF0000-0x00007FFBF8AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3372-29-0x00007FFBF7FF0000-0x00007FFBF8AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3372-22-0x00007FFBF7FF0000-0x00007FFBF8AB1000-memory.dmp

Filesize
10.8MB

Download
memory/3372-21-0x000001E1F4150000-0x000001E1F415C000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads