orcus | 9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e

General

Target

9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe
Size

2.0MB
MD5

cfbef968f6849584b09d80e9400831fb
SHA1

55dcd9883812008506b97913b357086bf83b35f2
SHA256

9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e
SHA512

f36b932f985a88101c173b33c68653c106dc34deb79653bac29cea8d48afb78570f1627a7259621a5dbaea5a69b4259d18a74f6564aaf5d272e16a9911359836
SSDEEP

12288:55STYf+qnR7Fkxh7dG1lFlWcYT70pxnnaaoawhmg6vgWrOrZNrI0AilFEvxHvBMI:fhg4MROxnFc645rZlI0AilFEvxHi70

Score

10^/10

orcus rat spyware stealer

Malware Config

Extracted

Family

orcus

C2

185.154.14.217:10134

Mutex

8f9ad032680b48e4921e3dead6b0b2ce

Attributes

autostart_method
TaskScheduler
enable_keylogger
true
install_path
%appdata%\Java\javaUpdate.exe
reconnect_delay
10000
registry_keyname
JavaUpate
taskscheduler_taskname
JavaUpate
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 main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000014698-40.dat	family_orcus

Orcurs Rat Executable 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000014698-40.dat	orcus
behavioral1/memory/2548-43-0x00000000012A0000-0x000000000138C000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2484	WindowsInput.exe
2492	WindowsInput.exe
2548	javaUpdate.exe
2960	javaUpdate.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	javaUpdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2548	javaUpdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2032 wrote to memory of 1056	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	28
PID 2032 wrote to memory of 1056	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	28
PID 2032 wrote to memory of 1056	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	28
PID 1056 wrote to memory of 2208	1056	csc.exe	30
PID 1056 wrote to memory of 2208	1056	csc.exe	30
PID 1056 wrote to memory of 2208	1056	csc.exe	30
PID 2032 wrote to memory of 2484	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	31
PID 2032 wrote to memory of 2484	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	31
PID 2032 wrote to memory of 2484	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	31
PID 2032 wrote to memory of 2548	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	33
PID 2032 wrote to memory of 2548	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	33
PID 2032 wrote to memory of 2548	2032	9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe	33
PID 2868 wrote to memory of 2960	2868	taskeng.exe	35
PID 2868 wrote to memory of 2960	2868	taskeng.exe	35
PID 2868 wrote to memory of 2960	2868	taskeng.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe
"C:\Users\Admin\AppData\Local\Temp\9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e.exe"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2032
- C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v2.0.50727\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\ifg6aoiz.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1056
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7D4C.tmp" "c:\Users\Admin\AppData\Local\Temp\CSC7D4B.tmp"
    3⤵
    PID:2208
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2484
- C:\Users\Admin\AppData\Roaming\Java\javaUpdate.exe
  "C:\Users\Admin\AppData\Roaming\Java\javaUpdate.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2548

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:2492

C:\Windows\system32\taskeng.exe
taskeng.exe {91F1F872-E66B-4A98-AD18-9815406EB295} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Roaming\Java\javaUpdate.exe
  C:\Users\Admin\AppData\Roaming\Java\javaUpdate.exe
  2⤵
  - Executes dropped EXE
  PID:2960

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RES7D4C.tmp

Filesize
1KB

MD5
eabeab2aaf21441a21e7eb56e64c6102

SHA1
c9899eefcb22e16a5769a29a2a9353ad9d8a8e17

SHA256
9440fe0a7dfeb76b4f002de0ba4b94ae95638c323a16e0214616527cc8f7e52d

SHA512
170444d925ee9560cf5e2b8c312f84f5f16781d01944257f4a24955a43414f1634cd08ce68ee654ad69a770851ad46001670da5f9391edc5cfd60fff859c81b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\ifg6aoiz.dll

Filesize
76KB

MD5
a6588a158bde560059f5464531cfd222

SHA1
5a04a65f18ab6ecb64ae2106feb20361eb8a230f

SHA256
9ac6129ac789b2b1e9e0bcbba16f67f2503596190d17941ad5f2c021cffb84f7

SHA512
22d5ecd92c5f6412e0b369476c01275577428c73f833a536cdcb0aa74a74d830f2c97b0452b538f867a21d593719f6d2b4f64a01ee16af1ddbde57c6a60fd389

Download Submit
C:\Users\Admin\AppData\Roaming\Java\javaUpdate.exe

Filesize
2.0MB

MD5
cfbef968f6849584b09d80e9400831fb

SHA1
55dcd9883812008506b97913b357086bf83b35f2

SHA256
9ebfa684485369043b5c5c06972a96e592c2b9a4a276361ca0557da90a15f60e

SHA512
f36b932f985a88101c173b33c68653c106dc34deb79653bac29cea8d48afb78570f1627a7259621a5dbaea5a69b4259d18a74f6564aaf5d272e16a9911359836

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe

Filesize
21KB

MD5
e6fcf516d8ed8d0d4427f86e08d0d435

SHA1
c7691731583ab7890086635cb7f3e4c22ca5e409

SHA256
8dbe814359391ed6b0b5b182039008cf1d00964da9fbc4747f46242a95c24337

SHA512
c496cf8e2e222fe1e19051b291e6860f31aae39f54369c1c5e8c9758c4b56e8af904e3e536e743a0a6fdbbf8478afba4baee92e13fc1b3073376ac6bf4a7948e

Download Submit
C:\Windows\SysWOW64\WindowsInput.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSC7D4B.tmp

Filesize
676B

MD5
206dece98369e8bbd7a248e85cd2bdee

SHA1
8801897eaac7c6c80482de632df273b1b0fe7c42

SHA256
4fa418358c42454962d3a7ca1759790a73acd40d45d73c7b9d0ce02102b60b9d

SHA512
1e5b3d47b7983c0da80d412e4525eb0da66554862a96dde247be1ee5517d323636d6eb497bbd2f1c13a6b1ee589761f8f879c9e1da493d9c9b256df0886b483b

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ifg6aoiz.0.cs

Filesize
208KB

MD5
c555d9796194c1d9a1310a05a2264e08

SHA1
82641fc4938680519c3b2e925e05e1001cbd71d7

SHA256
ccbb8fd27ab2f27fbbd871793886ff52ff1fbd9117c98b8d190c1a96b67e498a

SHA512
0b85ca22878998c7697c589739905b218f9b264a32c8f99a9f9dd73d0687a5de46cc7e851697ee16424baf94d301e411648aa2d061ac149a6d2e06b085e07090

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\ifg6aoiz.cmdline

Filesize
349B

MD5
2eb27a51263604f17bd816bc5aba53a9

SHA1
a5c62a8f3a27cb9e6e6b7e9ca44502304c5c89fb

SHA256
1e5bcad27a4f96dfb601731f30c3d920699f4679d0a24ba65a0a77ca10b06d18

SHA512
e27e5897ac975a7945ceab17aad6024dfee6131694ef7bbc8fdcb1ba2d603d6bf1e36b4ce76c27a0a84d41bda9847f3f39415e19cbe8ebc2cbc4e43caea71d28

Download Submit
memory/1056-17-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/1056-10-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2032-19-0x0000000000D20000-0x0000000000D36000-memory.dmp

Filesize
88KB

Download
memory/2032-1-0x0000000000CC0000-0x0000000000D1C000-memory.dmp

Filesize
368KB

Download
memory/2032-0-0x000007FEF5E0E000-0x000007FEF5E0F000-memory.dmp

Filesize
4KB

Download
memory/2032-21-0x0000000000550000-0x0000000000562000-memory.dmp

Filesize
72KB

Download
memory/2032-22-0x0000000000C90000-0x0000000000C98000-memory.dmp

Filesize
32KB

Download
memory/2032-3-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2032-2-0x0000000000510000-0x000000000051E000-memory.dmp

Filesize
56KB

Download
memory/2032-4-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2032-44-0x000007FEF5B50000-0x000007FEF64ED000-memory.dmp

Filesize
9.6MB

Download
memory/2484-30-0x0000000000970000-0x000000000097C000-memory.dmp

Filesize
48KB

Download
memory/2492-34-0x0000000001230000-0x000000000123C000-memory.dmp

Filesize
48KB

Download
memory/2548-43-0x00000000012A0000-0x000000000138C000-memory.dmp

Filesize
944KB

Download
memory/2548-45-0x0000000000500000-0x000000000054E000-memory.dmp

Filesize
312KB

Download
memory/2548-46-0x0000000000DB0000-0x0000000000DC8000-memory.dmp

Filesize
96KB

Download
memory/2548-48-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

Filesize
64KB

Download

Analysis

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