orcus | 734f871a3233c3cedc9ff22e0bdb889171ac464cfdb8a6b41ee2a2fe419602f9

General

Target

734f871a3233c3cedc9ff22e0bdb889171ac464cfdb8a6b41ee2a2fe419602f9.dll
Size

3.3MB
MD5

009767e32fc980fdc21862e401dea611
SHA1

69aaa8c81e383fee43f0b09f42a26dfe4afa70ca
SHA256

734f871a3233c3cedc9ff22e0bdb889171ac464cfdb8a6b41ee2a2fe419602f9
SHA512

447b834e04e86f39ab578aef1598673b6e3cbc732896f8db88530f879dae1a831743322407d498dd5cadb76c853290dd9785c8ae86fcf778e87e62c5df465fef
SSDEEP

98304:lWI49Noj2V+HFZMYPgPhoVjgPmbcX6noKNe+:lWI43T+HgK9MmbtoKND

Score

10^/10

orcus new members discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

new members

C2

31.44.184.52:54539

Mutex

sudo_a07a7kdh0lxw5evj0v7ftbb9yk0hrhbo

Attributes

autostart_method
Disable
enable_keylogger
false
install_path
%appdata%\temppythongeo\longpolllongpoll.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

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral2/memory/3064-10-0x0000000000400000-0x00000000006FE000-memory.dmp	orcus

Executes dropped EXE 3 IoCs

pid	Process
4964	temADF3.tmp
4868	temADF3.tmp
3064	temADF3.tmp

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2912	rundll32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4964 set thread context of 3064	4964	temADF3.tmp	89

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2512	4964	WerFault.exe	85

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	temADF3.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	temADF3.tmp

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	temADF3.tmp

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4540 wrote to memory of 2912	4540	rundll32.exe	83
PID 4540 wrote to memory of 2912	4540	rundll32.exe	83
PID 4540 wrote to memory of 2912	4540	rundll32.exe	83
PID 2912 wrote to memory of 4964	2912	rundll32.exe	85
PID 2912 wrote to memory of 4964	2912	rundll32.exe	85
PID 2912 wrote to memory of 4964	2912	rundll32.exe	85
PID 4964 wrote to memory of 4868	4964	temADF3.tmp	88
PID 4964 wrote to memory of 4868	4964	temADF3.tmp	88
PID 4964 wrote to memory of 4868	4964	temADF3.tmp	88
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89
PID 4964 wrote to memory of 3064	4964	temADF3.tmp	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\734f871a3233c3cedc9ff22e0bdb889171ac464cfdb8a6b41ee2a2fe419602f9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4540
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\734f871a3233c3cedc9ff22e0bdb889171ac464cfdb8a6b41ee2a2fe419602f9.dll,#1
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2912
- - C:\Users\Admin\AppData\Local\Temp\temADF3.tmp
    "C:\Users\Admin\AppData\Local\Temp\temADF3.tmp"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4964
  - - C:\Users\Admin\AppData\Local\Temp\temADF3.tmp
      "C:\Users\Admin\AppData\Local\Temp\temADF3.tmp"
      4⤵
      Executes dropped EXE
      PID:4868
  - - C:\Users\Admin\AppData\Local\Temp\temADF3.tmp
      "C:\Users\Admin\AppData\Local\Temp\temADF3.tmp"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3064
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 824
      4⤵
      Program crash
      PID:2512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4964 -ip 4964
1⤵
PID:632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

3

T1552

Credentials In Files

2

T1552.001

Credentials in Registry

1

T1552.002

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\temADF3.tmp

Filesize
3.0MB

MD5
26d034e445c22951d395eadaf3803f08

SHA1
8c27f66cb3c4b6da6abe27aca7ca6ab17411635c

SHA256
ca12699339e187db1b1a73ec8510952652c6d03fa9ef90e96eafde13ca577438

SHA512
4d561384995b9414339a1742a249ee4311b32da16cc8593e77ae758b206b9f7e5b81679947467967c9188b242d47cd8205998ea0f5cb0d143e70f59c29cef1ef

Download Submit
memory/3064-18-0x0000000006020000-0x0000000006038000-memory.dmp

Filesize
96KB

Download
memory/3064-26-0x00000000074B0000-0x00000000074FC000-memory.dmp

Filesize
304KB

Download
memory/3064-20-0x0000000006AA0000-0x0000000006AAA000-memory.dmp

Filesize
40KB

Download
memory/3064-19-0x0000000006070000-0x0000000006080000-memory.dmp

Filesize
64KB

Download
memory/3064-10-0x0000000000400000-0x00000000006FE000-memory.dmp

Filesize
3.0MB

Download
memory/3064-12-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/3064-13-0x0000000005620000-0x000000000562E000-memory.dmp

Filesize
56KB

Download
memory/3064-14-0x00000000058A0000-0x00000000058FC000-memory.dmp

Filesize
368KB

Download
memory/3064-16-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/3064-15-0x0000000005B70000-0x0000000005C02000-memory.dmp

Filesize
584KB

Download
memory/3064-17-0x0000000005B60000-0x0000000005B72000-memory.dmp

Filesize
72KB

Download
memory/3064-31-0x00000000087C0000-0x0000000008810000-memory.dmp

Filesize
320KB

Download
memory/3064-32-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/3064-30-0x0000000007830000-0x00000000078CC000-memory.dmp

Filesize
624KB

Download
memory/3064-29-0x0000000007600000-0x000000000760E000-memory.dmp

Filesize
56KB

Download
memory/3064-22-0x00000000073A0000-0x0000000007406000-memory.dmp

Filesize
408KB

Download
memory/3064-23-0x0000000007A30000-0x0000000008048000-memory.dmp

Filesize
6.1MB

Download
memory/3064-24-0x0000000007410000-0x0000000007422000-memory.dmp

Filesize
72KB

Download
memory/3064-25-0x0000000007470000-0x00000000074AC000-memory.dmp

Filesize
240KB

Download
memory/3064-28-0x0000000008050000-0x0000000008212000-memory.dmp

Filesize
1.8MB

Download
memory/3064-27-0x0000000007640000-0x000000000774A000-memory.dmp

Filesize
1.0MB

Download
memory/4964-5-0x0000000000DB0000-0x00000000010BE000-memory.dmp

Filesize
3.1MB

Download
memory/4964-8-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download
memory/4964-6-0x0000000005F30000-0x00000000064D4000-memory.dmp

Filesize
5.6MB

Download
memory/4964-4-0x0000000073D6E000-0x0000000073D6F000-memory.dmp

Filesize
4KB

Download
memory/4964-21-0x0000000073D60000-0x0000000074510000-memory.dmp

Filesize
7.7MB

Download

Analysis

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