orcus | 81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d

General

Target

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe
Size

3.0MB
MD5

4e4965566a3aa96f3af232f66065899e
SHA1

a19e0e33641b9d6edbb06b4253bff933b21817ad
SHA256

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d
SHA512

70cc2c701bc57b15580a1a5586b77fe38857d36761a4d8f426d72ef484071734c65d48cea050b315b827f136e7e2facb46698dd26c63d111c7c55bcc82e3e7d8
SSDEEP

49152:Y1HS7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpbu/nRFfjI7L0qb:YUHTPJg8z1mKnypSbRxo9JCm

Score

10^/10

orcus новый тег discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Новый тег

C2

31.44.184.52:61350

Mutex

sudo_b6tx4ec9njijzf9nicunblw4e4l0imp9

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\privatewindowsline\cpu_.exe
reconnect_delay
10000
registry_keyname
Sudik
taskscheduler_taskname
sudik
watchdog_path
AppData\aga.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

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe	family_orcus

Orcurs Rat Executable 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4120-1-0x0000000000A00000-0x0000000000CFE000-memory.dmp	orcus
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe	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:

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe

Executes dropped EXE 4 IoCs

Processes:

cpu_.execpu_.execpu_.execpu_.exe

pid process

3032 cpu_.exe
3116 cpu_.exe
2952 cpu_.exe
2316 cpu_.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

cpu_.exe

description pid process target process

PID 3032 set thread context of 4684 3032 cpu_.exe caspol.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
3032	cpu_.exe
3116	cpu_.exe
2952	cpu_.exe
2316	cpu_.exe

description	pid	process	target process
PID 3032 set thread context of 4684	3032	cpu_.exe	caspol.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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

Processes:

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.execpu_.execpu_.execaspol.execpu_.execpu_.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cpu_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cpu_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	caspol.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cpu_.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cpu_.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.execpu_.execaspol.exe

pid	process
4120	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe
3032	cpu_.exe
3032	cpu_.exe
3032	cpu_.exe
3032	cpu_.exe
4684	caspol.exe
4684	caspol.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.execpu_.execaspol.exe

description	pid	process
Token: SeDebugPrivilege	4120	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe
Token: SeDebugPrivilege	3032	cpu_.exe
Token: SeDebugPrivilege	4684	caspol.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.execpu_.exe

description	pid	process	target process
PID 4120 wrote to memory of 3032	4120	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe	cpu_.exe
PID 4120 wrote to memory of 3032	4120	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe	cpu_.exe
PID 4120 wrote to memory of 3032	4120	81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe	cpu_.exe
PID 3032 wrote to memory of 1312	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 1312	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 1312	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe
PID 3032 wrote to memory of 4684	3032	cpu_.exe	caspol.exe

C:\Users\Admin\AppData\Local\Temp\81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe
"C:\Users\Admin\AppData\Local\Temp\81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
  "C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
    3⤵
    PID:1312
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4684

C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3116

C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2952

C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2316

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:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\cpu_.exe.log

Filesize
1KB

MD5
663b8d5469caa4489d463aa9bc18124f

SHA1
e57123a7d969115853ea631a3b33826335025d28

SHA256
7b4fa505452f0b8ac74bb31f5a03b13342836318018fb18d224ae2ff11b1a7e8

SHA512
45e373295125a629fcc0b19609608d969c9106514918bfac5d6b8e340e407434577b825741b8fa6a043c8f3f5c1a030ba8857da5f4e8ef15a551ce3c5fe03b55

Download Submit
C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe

Filesize
3.0MB

MD5
4e4965566a3aa96f3af232f66065899e

SHA1
a19e0e33641b9d6edbb06b4253bff933b21817ad

SHA256
81a0ead38f8ec2d7fa5ba67a0672a798a7b99fe1a5659c1128dfa1be87b0539d

SHA512
70cc2c701bc57b15580a1a5586b77fe38857d36761a4d8f426d72ef484071734c65d48cea050b315b827f136e7e2facb46698dd26c63d111c7c55bcc82e3e7d8

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C:\Users\Admin\AppData\Roaming\privatewindowsline\cpu_.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

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memory/3032-23-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/3032-32-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/3032-28-0x00000000063D0000-0x000000000646C000-memory.dmp

Filesize
624KB

Download
memory/3032-26-0x0000000006170000-0x00000000061BE000-memory.dmp

Filesize
312KB

Download
memory/3032-25-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/3116-48-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/3116-29-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/4120-7-0x0000000005DF0000-0x0000000005E02000-memory.dmp

Filesize
72KB

Download
memory/4120-24-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/4120-0-0x0000000074E2E000-0x0000000074E2F000-memory.dmp

Filesize
4KB

Download
memory/4120-6-0x0000000005910000-0x00000000059A2000-memory.dmp

Filesize
584KB

Download
memory/4120-5-0x0000000005EC0000-0x0000000006464000-memory.dmp

Filesize
5.6MB

Download
memory/4120-3-0x0000000074E20000-0x00000000755D0000-memory.dmp

Filesize
7.7MB

Download
memory/4120-4-0x0000000005570000-0x00000000055CC000-memory.dmp

Filesize
368KB

Download
memory/4120-1-0x0000000000A00000-0x0000000000CFE000-memory.dmp

Filesize
3.0MB

Download
memory/4120-2-0x0000000001530000-0x000000000153E000-memory.dmp

Filesize
56KB

Download
memory/4684-39-0x0000000007D10000-0x0000000008328000-memory.dmp

Filesize
6.1MB

Download
memory/4684-38-0x0000000007680000-0x00000000076E6000-memory.dmp

Filesize
408KB

Download
memory/4684-35-0x0000000006D70000-0x0000000006D7A000-memory.dmp

Filesize
40KB

Download
memory/4684-40-0x0000000007720000-0x0000000007732000-memory.dmp

Filesize
72KB

Download
memory/4684-41-0x0000000007780000-0x00000000077BC000-memory.dmp

Filesize
240KB

Download
memory/4684-42-0x00000000077C0000-0x000000000780C000-memory.dmp

Filesize
304KB

Download
memory/4684-43-0x0000000007950000-0x0000000007A5A000-memory.dmp

Filesize
1.0MB

Download
memory/4684-44-0x0000000008330000-0x00000000084F2000-memory.dmp

Filesize
1.8MB

Download
memory/4684-45-0x0000000007940000-0x000000000794E000-memory.dmp

Filesize
56KB

Download
memory/4684-46-0x0000000008750000-0x00000000087A0000-memory.dmp

Filesize
320KB

Download
memory/4684-34-0x0000000006110000-0x0000000006120000-memory.dmp

Filesize
64KB

Download
memory/4684-33-0x00000000060B0000-0x00000000060C8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads