orcus | 3360c8f07e4ce26cb16bbc656980f531dc60e6ea328bbcf2beaca78d977d7e89

General

Target

c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
Size

1.2MB
MD5

c33762fe5120bcdcfdb56c4a0d8126e2
SHA1

61c60c3bbbcc2cf193ac9fff49e597bf434ae411
SHA256

3360c8f07e4ce26cb16bbc656980f531dc60e6ea328bbcf2beaca78d977d7e89
SHA512

6b02d024b71e21f3448cc5e9cd7e3b056766fb1571c64f4957986dedb3822bb926ed2a2403ba37ead24f9205af95fb6acdfee7eb895e2d7485a36fc5ad6fbd9c
SSDEEP

24576:88YIIIIf1OOoPIz+sSvJ+moGlpzCwYuO61TlLdT40DLK/k5aBwO:8yPIG9oGZW

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

81.92.202.149

Mutex

2c31f355cfb24cada19a7e48f314db0a

Attributes

administration_rights_required
false
anti_debugger
false
anti_tcp_analyzer
false
antivm
false
autostart_method
1
change_creation_date
false
force_installer_administrator_privileges
false
hide_file
false
install
false
installation_folder
%appdata%\Microsoft\Speech\AudioDriver.exe
installservice
false
keylogger_enabled
false
newcreationdate
01/17/2018 11:21:17
plugins
AgEAAA==
reconnect_delay
10000
registry_autostart_keyname
Audio HD Driver
registry_hidden_autostart
false
set_admin_flag
false
tasksch_name
Audio HD Driver
tasksch_request_highest_privileges
false
try_other_autostart_onfail
false

aes.plain

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer 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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4792	AudioDriver.exe
4752	AudioDriver.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 4792 set thread context of 4752	4792	AudioDriver.exe	98

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
File created	C:\Windows\assembly\Desktop.ini	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.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 4 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	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AudioDriver.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe
4752	AudioDriver.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
Token: SeDebugPrivilege	4792	AudioDriver.exe
Token: SeDebugPrivilege	4752	AudioDriver.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4752	AudioDriver.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 2780 wrote to memory of 1256	2780	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	93
PID 1256 wrote to memory of 4792	1256	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	97
PID 1256 wrote to memory of 4792	1256	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	97
PID 1256 wrote to memory of 4792	1256	c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe	97
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98
PID 4792 wrote to memory of 4752	4792	AudioDriver.exe	98

C:\Users\Admin\AppData\Local\Temp\c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Users\Admin\AppData\Local\Temp\c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1256
- - C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4792
  - - C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4752

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\c33762fe5120bcdcfdb56c4a0d8126e2_JaffaCakes118.exe.log

Filesize
408B

MD5
04ad5d645afd4aad8257d37d2b197bd9

SHA1
f27458933c22a18ed06c3ef023d9356bae6f5e89

SHA256
519a7b0a515b09c8d149c48a26e782e13decd80c2a2957a751f58801bed026d0

SHA512
34097f7ec87c917ebb2f38a156a33ff1b5f8570141acd666a1fce2cd5d40e464762a3a596a44f078318f92823a7d7b961751c4399040a09e5eddb941f22c4754

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

Filesize
1.2MB

MD5
c33762fe5120bcdcfdb56c4a0d8126e2

SHA1
61c60c3bbbcc2cf193ac9fff49e597bf434ae411

SHA256
3360c8f07e4ce26cb16bbc656980f531dc60e6ea328bbcf2beaca78d977d7e89

SHA512
6b02d024b71e21f3448cc5e9cd7e3b056766fb1571c64f4957986dedb3822bb926ed2a2403ba37ead24f9205af95fb6acdfee7eb895e2d7485a36fc5ad6fbd9c

Download Submit
memory/1256-26-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1256-7-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1256-10-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1256-5-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/1256-6-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2780-1-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2780-4-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2780-14-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2780-2-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/2780-3-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/2780-0-0x0000000074BC2000-0x0000000074BC3000-memory.dmp

Filesize
4KB

Download
memory/4752-32-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4752-35-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4792-27-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4792-28-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4792-29-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/4792-34-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download

Analysis

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