orcus | 61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401

General

Target

61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe
Size

911KB
MD5

9ab3d6d5b0495a056c23afb26d58b01e
SHA1

e2b0d0611c9f0b9728a07ccc76f5ee9d588ca9b7
SHA256

61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401
SHA512

062b3985953adbf1cc792648121624ccae60ba1f3d01ca7313a2b8768a875f3d418447a3da017a28e75ac3a08c41a757883c647780028f49ceec6c41cb066b8d
SSDEEP

24576:NBB4MROxnF4jUINrrcI0AilFEvxHPXooN:NQMimNrrcI0AilFEvxHP

Score

10^/10

orcus nursultan 1.16.5 discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

nursultan 1.16.5

C2

127.0.0.1:1268

Mutex

29e5ffc31816447189007ae4dd81fe0d

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
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b7c-22.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral2/memory/2296-1-0x0000000000210000-0x00000000002FA000-memory.dmp	orcus
behavioral2/files/0x000a000000023b7c-22.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe

Executes dropped EXE 2 IoCs

pid	Process
3504	Orcus.exe
4984	Orcus.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Orcus\Orcus.exe	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe
File opened for modification	C:\Program Files (x86)\Orcus\Orcus.exe	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe
File created	C:\Program Files (x86)\Orcus\Orcus.exe.config	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Orcus.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3504	Orcus.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3504	Orcus.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
3504	Orcus.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3504	Orcus.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2296 wrote to memory of 3504	2296	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe	84
PID 2296 wrote to memory of 3504	2296	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe	84
PID 2296 wrote to memory of 3504	2296	61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe	84

C:\Users\Admin\AppData\Local\Temp\61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe
"C:\Users\Admin\AppData\Local\Temp\61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2296
- C:\Program Files (x86)\Orcus\Orcus.exe
  "C:\Program Files (x86)\Orcus\Orcus.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3504

C:\Program Files (x86)\Orcus\Orcus.exe
"C:\Program Files (x86)\Orcus\Orcus.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Orcus\Orcus.exe

Filesize
911KB

MD5
9ab3d6d5b0495a056c23afb26d58b01e

SHA1
e2b0d0611c9f0b9728a07ccc76f5ee9d588ca9b7

SHA256
61160780cd8f24a4ad7d46cf0e7cfdad0accbcef02c681b294fe220d3d297401

SHA512
062b3985953adbf1cc792648121624ccae60ba1f3d01ca7313a2b8768a875f3d418447a3da017a28e75ac3a08c41a757883c647780028f49ceec6c41cb066b8d

Download Submit
C:\Program Files (x86)\Orcus\Orcus.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Roaming\Orcus\err_29e5ffc31816447189007ae4dd81fe0d.dat

Filesize
1KB

MD5
1b7d17126b1137d88025ab963ebcffc5

SHA1
5bcbbd809907758a67d4f2fa1d54f52b5b18323e

SHA256
802ef7ed3bd2e39260ea6e02e568536d07887089fb850640e813c38f3ffb8072

SHA512
cd343a0cb0507084eb793f29e8b8be7712a0ad8807c9136da82efb8203e53e4fb6d11428cc64a18806ec81ce0507b1828cc37ca5371f68243868863bc2360eb1

Download Submit
memory/2296-7-0x0000000004DF0000-0x0000000004E02000-memory.dmp

Filesize
72KB

Download
memory/2296-3-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/2296-5-0x00000000052C0000-0x0000000005864000-memory.dmp

Filesize
5.6MB

Download
memory/2296-6-0x0000000004E10000-0x0000000004EA2000-memory.dmp

Filesize
584KB

Download
memory/2296-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/2296-9-0x0000000005230000-0x0000000005238000-memory.dmp

Filesize
32KB

Download
memory/2296-8-0x0000000004E00000-0x0000000004E08000-memory.dmp

Filesize
32KB

Download
memory/2296-10-0x0000000005970000-0x00000000059D6000-memory.dmp

Filesize
408KB

Download
memory/2296-11-0x0000000006000000-0x0000000006618000-memory.dmp

Filesize
6.1MB

Download
memory/2296-12-0x0000000005A40000-0x0000000005A52000-memory.dmp

Filesize
72KB

Download
memory/2296-13-0x0000000005AA0000-0x0000000005ADC000-memory.dmp

Filesize
240KB

Download
memory/2296-14-0x0000000005AE0000-0x0000000005B2C000-memory.dmp

Filesize
304KB

Download
memory/2296-15-0x0000000005C60000-0x0000000005D6A000-memory.dmp

Filesize
1.0MB

Download
memory/2296-4-0x0000000004C70000-0x0000000004CCC000-memory.dmp

Filesize
368KB

Download
memory/2296-2-0x0000000004C60000-0x0000000004C6E000-memory.dmp

Filesize
56KB

Download
memory/2296-1-0x0000000000210000-0x00000000002FA000-memory.dmp

Filesize
936KB

Download
memory/2296-32-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3504-34-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3504-33-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3504-37-0x0000000006260000-0x00000000062AE000-memory.dmp

Filesize
312KB

Download
memory/3504-39-0x0000000006A70000-0x0000000006A88000-memory.dmp

Filesize
96KB

Download
memory/3504-42-0x0000000006C30000-0x0000000006C40000-memory.dmp

Filesize
64KB

Download
memory/3504-41-0x0000000006DF0000-0x0000000006FB2000-memory.dmp

Filesize
1.8MB

Download
memory/3504-44-0x0000000006D90000-0x0000000006D9A000-memory.dmp

Filesize
40KB

Download
memory/3504-47-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/4984-40-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/4984-43-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/4984-46-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download

Analysis

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