orcus | 488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 01:10

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General

Target

488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe
Size

1.0MB
MD5

9640302636336bc3d306f51dc67d37c6
SHA1

5af7e540340e6625c8ce4a70b86c106944396990
SHA256

488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674
SHA512

e0b52ae370c3dc02fce74a2b9d0fe2f9403f92b128ec6e4e552b21792c026cbc91a4070f14235f9a972bc5f65d8782873e99174f773c835ce9db6ca664a44484
SSDEEP

24576:VVj4MROxnFf3AumXrrcI0AilFEvxHPxoow:VyMidgrrcI0AilFEvxHP

Score

10^/10

orcus admin persistence rat spyware stealer

Malware Config

Extracted

Family

orcus

Botnet

Admin

192.168.75.130:10134

Mutex

1f14e8a84fd043adadc556bda2acd0df

Attributes

autostart_method
Registry
enable_keylogger
false
install_path
%programfiles%\ESTESEyswindows\ESTESEyswindows.exe
reconnect_delay
10000
registry_keyname
ESTESEyswindows
taskscheduler_taskname
ESTESEyswindows
watchdog_path
AppData\ESTESEyswindowssWatch.exe

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0030000000015c6f-10.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/844-0-0x0000000000810000-0x0000000000922000-memory.dmp	orcus
behavioral1/files/0x0030000000015c6f-10.dat	orcus
behavioral1/memory/2760-16-0x00000000012C0000-0x00000000013D2000-memory.dmp	orcus

Executes dropped EXE 3 IoCs

pid	Process
2760	ESTESEyswindows.exe
1284	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe

Loads dropped DLL 3 IoCs

pid	Process
844	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe
2760	ESTESEyswindows.exe
1284	ESTESEyswindowssWatch.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\ESTESEyswindows = "\"C:\\Program Files (x86)\\ESTESEyswindows\\ESTESEyswindows.exe\""	ESTESEyswindows.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe
File opened for modification	C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe
File created	C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe.config	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe
2760	ESTESEyswindows.exe
2800	ESTESEyswindowssWatch.exe
2800	ESTESEyswindowssWatch.exe
2760	ESTESEyswindows.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	ESTESEyswindows.exe
Token: SeDebugPrivilege	1284	ESTESEyswindowssWatch.exe
Token: SeDebugPrivilege	2800	ESTESEyswindowssWatch.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2760	ESTESEyswindows.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2760	ESTESEyswindows.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 2760	844	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe	28
PID 844 wrote to memory of 2760	844	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe	28
PID 844 wrote to memory of 2760	844	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe	28
PID 844 wrote to memory of 2760	844	488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe	28
PID 2760 wrote to memory of 1284	2760	ESTESEyswindows.exe	29
PID 2760 wrote to memory of 1284	2760	ESTESEyswindows.exe	29
PID 2760 wrote to memory of 1284	2760	ESTESEyswindows.exe	29
PID 2760 wrote to memory of 1284	2760	ESTESEyswindows.exe	29
PID 1284 wrote to memory of 2800	1284	ESTESEyswindowssWatch.exe	30
PID 1284 wrote to memory of 2800	1284	ESTESEyswindowssWatch.exe	30
PID 1284 wrote to memory of 2800	1284	ESTESEyswindowssWatch.exe	30
PID 1284 wrote to memory of 2800	1284	ESTESEyswindowssWatch.exe	30

C:\Users\Admin\AppData\Local\Temp\488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe
"C:\Users\Admin\AppData\Local\Temp\488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:844
- C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe
  "C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2760
- - C:\Users\Admin\AppData\Roaming\ESTESEyswindowssWatch.exe
    "C:\Users\Admin\AppData\Roaming\ESTESEyswindowssWatch.exe" /launchSelfAndExit "C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe" 2760
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1284
  - - C:\Users\Admin\AppData\Roaming\ESTESEyswindowssWatch.exe
      "C:\Users\Admin\AppData\Roaming\ESTESEyswindowssWatch.exe" /watchProcess "C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe" 2760
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Roaming\ESTESEyswindowssWatch.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
\Program Files (x86)\ESTESEyswindows\ESTESEyswindows.exe

Filesize
1.0MB

MD5
9640302636336bc3d306f51dc67d37c6

SHA1
5af7e540340e6625c8ce4a70b86c106944396990

SHA256
488e864dbf450b583fd0507ca184948db58e7cfafde95795a1d7546b472d6674

SHA512
e0b52ae370c3dc02fce74a2b9d0fe2f9403f92b128ec6e4e552b21792c026cbc91a4070f14235f9a972bc5f65d8782873e99174f773c835ce9db6ca664a44484

Download Submit
memory/844-1-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/844-2-0x00000000049F0000-0x0000000004A30000-memory.dmp

Filesize
256KB

Download
memory/844-3-0x00000000003B0000-0x00000000003BE000-memory.dmp

Filesize
56KB

Download
memory/844-4-0x00000000006D0000-0x000000000072C000-memory.dmp

Filesize
368KB

Download
memory/844-5-0x0000000000580000-0x0000000000592000-memory.dmp

Filesize
72KB

Download
memory/844-6-0x0000000000740000-0x0000000000748000-memory.dmp

Filesize
32KB

Download
memory/844-17-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/844-0-0x0000000000810000-0x0000000000922000-memory.dmp

Filesize
1.1MB

Download
memory/1284-33-0x0000000000160000-0x0000000000168000-memory.dmp

Filesize
32KB

Download
memory/2760-16-0x00000000012C0000-0x00000000013D2000-memory.dmp

Filesize
1.1MB

Download
memory/2760-20-0x0000000000350000-0x0000000000362000-memory.dmp

Filesize
72KB

Download
memory/2760-21-0x00000000011C0000-0x000000000120E000-memory.dmp

Filesize
312KB

Download
memory/2760-22-0x0000000000B10000-0x0000000000B28000-memory.dmp

Filesize
96KB

Download
memory/2760-23-0x0000000001140000-0x0000000001150000-memory.dmp

Filesize
64KB

Download
memory/2760-18-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-19-0x0000000001210000-0x0000000001250000-memory.dmp

Filesize
256KB

Download
memory/2760-36-0x0000000074AA0000-0x000000007518E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-37-0x0000000001210000-0x0000000001250000-memory.dmp

Filesize
256KB

Download