orcus | 43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3

General

Target

43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
Size

5.0MB
MD5

a846562bd184159534ac6b3d620ca797
SHA1

a6b359a0c8b73437cd9e767dca3c235879efc61d
SHA256

43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3
SHA512

7a5d8d56d04bab387234e6b7cc09166d57f9e2c3afd45c5fa8d72ac34e61b36bd071c3f9978ada031c5b15262ae9818dd173fa527a6a6b404b2927a13c6a45ad
SSDEEP

12288:roHWszy2LkjKgEX0pq5g7dG1lFlWcYT70pxnnaaoaw1m9cfpCt6IV641rZNrI0A:feu4MROxnF0qrZlI0AilFEvxHiii3

Score

10^/10

orcus лох rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

лох

C2

0.0.0.0:1268

Mutex

2238131840d049628c048d3c6288c463

Attributes

autostart_method
TaskScheduler
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
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b64-55.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023b64-55.dat	orcus
behavioral2/memory/3768-65-0x0000000000050000-0x000000000013A000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe

Executes dropped EXE 4 IoCs

pid	Process
1704	WindowsInput.exe
4800	WindowsInput.exe
3768	Orcus.exe
1728	Orcus.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Orcus\Orcus.exe	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File opened for modification	C:\Program Files\Orcus\Orcus.exe	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File created	C:\Program Files\Orcus\Orcus.exe.config	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File opened for modification	C:\Windows\assembly	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
File created	C:\Windows\assembly\Desktop.ini	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.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	3768	Orcus.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3552 wrote to memory of 1632	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	83
PID 3552 wrote to memory of 1632	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	83
PID 1632 wrote to memory of 2376	1632	csc.exe	85
PID 1632 wrote to memory of 2376	1632	csc.exe	85
PID 3552 wrote to memory of 1704	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	86
PID 3552 wrote to memory of 1704	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	86
PID 3552 wrote to memory of 3768	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	88
PID 3552 wrote to memory of 3768	3552	43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe	88

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\43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe
"C:\Users\Admin\AppData\Local\Temp\43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3552
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\no2brhaf.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1632
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES852F.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC852E.tmp"
    3⤵
    PID:2376
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:1704
- C:\Program Files\Orcus\Orcus.exe
  "C:\Program Files\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3768

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:4800

C:\Program Files\Orcus\Orcus.exe
"C:\Program Files\Orcus\Orcus.exe"
1⤵
- Executes dropped EXE
PID:1728

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files\Orcus\Orcus.exe

Filesize
5.0MB

MD5
a846562bd184159534ac6b3d620ca797

SHA1
a6b359a0c8b73437cd9e767dca3c235879efc61d

SHA256
43e36fd935092b8ac4c90d77c5fc81ef31b0e917aea3e081f246341ff7532ae3

SHA512
7a5d8d56d04bab387234e6b7cc09166d57f9e2c3afd45c5fa8d72ac34e61b36bd071c3f9978ada031c5b15262ae9818dd173fa527a6a6b404b2927a13c6a45ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\RES852F.tmp

Filesize
1KB

MD5
a3029bff21c1b8b2e99f21e355a550c8

SHA1
d73ac3f34b47a1de43fb75296fc3adc59faa175a

SHA256
ef4b82eb3ccbb6836ca1c4a539c6117687d94c09fe28fef241f2dcf7f3dd02ba

SHA512
0ff0a2eae8564f4aef56d980f92b6347363b62bb8184d368ae0518159d46bcc5e372f6e447f55f301f868dc26083410a49c878d4fbe79d6e36addbe569496ab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\no2brhaf.dll

Filesize
76KB

MD5
df626425de4bc4760845ef669a5205c4

SHA1
801703344a31e08834596a830699fc6568598ce6

SHA256
223e442b45e5a93f0a82d2e8046ecd8a2bee37392a1df93a6f88324c63e2fefd

SHA512
c60b58a4266f20edad422ec64a746d8b782c96c06a76346abcbbee4530baea2f25be60ca4ae4081d0cbd4aaf6da074933dc956e9b5ff44dfb20bee5c67d4815e

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
\??\c:\Users\Admin\AppData\Local\Temp\CSC852E.tmp

Filesize
676B

MD5
5db5ed12110aa88d9523dff1ea40645e

SHA1
2c5d44b35b59a6d4438a3e2433b68fd781fba267

SHA256
ba9a25f7d16eb15bffaaf1655a727f5e2a5a069c3db29d9bc3173c91c0bee51c

SHA512
2d8602f35e62f1f68ff69fbd61368f43aa82937aa2f8f2fdb8c338ac72bd9e251041dc7569dca48cd412e570be0dba18c1a4eb21b245c33a432f54da3c9f9d2b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\no2brhaf.0.cs

Filesize
208KB

MD5
6f9bb5285f284e19a64776f854e1903f

SHA1
5057abe4cd34569a378a75c460cfab86196c5ba8

SHA256
634b9beff08920893621cc2fcca3048496b85aab7510dccd6b7708043dabdd7a

SHA512
bc657cb86bae0a74b18481283a81c69c7994df658e13f4b939561ca5e77681a6d556d7e6412318fb6aff5db9401a68127d8e197e2adfca1f3629119a958d5043

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\no2brhaf.cmdline

Filesize
349B

MD5
68f38f861add295a79ca13ac33d5a7b1

SHA1
9dafb43e3d33023709c14c3003955dc38e2fda61

SHA256
cb0297f02fd644a6dea6cf860c86189bfcad21d59030297e4258e5ace55b777e

SHA512
eda34fc442750ea545f38b36c6400b301480d3eb399221dc17313b5fe214d521409f6e712f6fc92668f77c87fdc9e3024ac50ddf36631a0da898c2bebfe9326b

Download Submit
memory/1632-21-0x00007FFD6F0C0000-0x00007FFD6FA61000-memory.dmp

Filesize
9.6MB

Download
memory/1632-16-0x00007FFD6F0C0000-0x00007FFD6FA61000-memory.dmp

Filesize
9.6MB

Download
memory/1704-44-0x0000000002500000-0x000000000253C000-memory.dmp

Filesize
240KB

Download
memory/1704-42-0x0000000000410000-0x000000000041C000-memory.dmp

Filesize
48KB

Download
memory/1704-41-0x00007FFD6C5E3000-0x00007FFD6C5E5000-memory.dmp

Filesize
8KB

Download
memory/1704-43-0x00000000024A0000-0x00000000024B2000-memory.dmp

Filesize
72KB

Download
memory/3552-26-0x000000001BBD0000-0x000000001BBD8000-memory.dmp

Filesize
32KB

Download
memory/3552-2-0x000000001BD00000-0x000000001BD5C000-memory.dmp

Filesize
368KB

Download
memory/3552-0-0x00007FFD6F375000-0x00007FFD6F376000-memory.dmp

Filesize
4KB

Download
memory/3552-27-0x000000001D040000-0x000000001D060000-memory.dmp

Filesize
128KB

Download
memory/3552-23-0x000000001D000000-0x000000001D016000-memory.dmp

Filesize
88KB

Download
memory/3552-8-0x000000001C940000-0x000000001C9DC000-memory.dmp

Filesize
624KB

Download
memory/3552-6-0x00007FFD6F0C0000-0x00007FFD6FA61000-memory.dmp

Filesize
9.6MB

Download
memory/3552-7-0x000000001C3D0000-0x000000001C89E000-memory.dmp

Filesize
4.8MB

Download
memory/3552-5-0x000000001BEF0000-0x000000001BEFE000-memory.dmp

Filesize
56KB

Download
memory/3552-25-0x000000001BC60000-0x000000001BC72000-memory.dmp

Filesize
72KB

Download
memory/3552-66-0x00007FFD6F0C0000-0x00007FFD6FA61000-memory.dmp

Filesize
9.6MB

Download
memory/3552-1-0x00007FFD6F0C0000-0x00007FFD6FA61000-memory.dmp

Filesize
9.6MB

Download
memory/3768-65-0x0000000000050000-0x000000000013A000-memory.dmp

Filesize
936KB

Download
memory/3768-67-0x00000000022A0000-0x00000000022B2000-memory.dmp

Filesize
72KB

Download
memory/3768-68-0x00000000022B0000-0x00000000022FE000-memory.dmp

Filesize
312KB

Download
memory/3768-70-0x0000000002360000-0x0000000002378000-memory.dmp

Filesize
96KB

Download
memory/3768-71-0x0000000002380000-0x0000000002390000-memory.dmp

Filesize
64KB

Download
memory/4800-49-0x000000001A290000-0x000000001A39A000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing