orcus | fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 01:08

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General

Target

fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe
Size

1.2MB
MD5

8031ba7c7db878cb3ddd3bf3f9bea80b
SHA1

58bff6171067acc0b51c5c61c04de60b036bbb5c
SHA256

fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd
SHA512

581fa0775baca47a48c4b14f186d085ea8c8f37e52faa516b4bcf5bd4958b3fbde0df8dcd5ed65163a928e58ef1c4ac2938d476920be7fd8e72d90f494658d11
SSDEEP

24576:+2A4MROxnFE30rXpCrZlI0AilFEvxHinYhrpo:+2jMiuepCrZlI0AilFEvxHig

Score

10^/10

orcus discovery rat spyware stealer

Malware Config

Extracted

Family

orcus

127.0.0.1:7436

Mutex

851c13e9b18e43239c52719c67ae474f

Attributes

autostart_method
TaskScheduler
enable_keylogger
true
install_path
%programfiles%\Windows Academy\quard.ai
reconnect_delay
10000
registry_keyname
svchost
taskscheduler_taskname
svchost
watchdog_path
AppData\quard.ai

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

resource	yara_rule
behavioral1/files/0x0008000000016d3b-41.dat	family_orcus

Orcurs Rat Executable 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016d3b-41.dat	orcus

Executes dropped EXE 2 IoCs

pid	Process
2944	WindowsInput.exe
3044	WindowsInput.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\WindowsInput.exe.config	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe
File created	C:\Windows\SysWOW64\WindowsInput.InstallState	WindowsInput.exe
File created	C:\Windows\SysWOW64\WindowsInput.exe	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files\Windows Academy\quard.ai	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe
File opened for modification	C:\Program Files\Windows Academy\quard.ai	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe
File created	C:\Program Files\Windows Academy\quard.ai.config	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.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 1 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	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2580	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2580	AcroRd32.exe
2580	AcroRd32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1504 wrote to memory of 1036	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	30
PID 1504 wrote to memory of 1036	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	30
PID 1504 wrote to memory of 1036	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	30
PID 1036 wrote to memory of 2628	1036	csc.exe	32
PID 1036 wrote to memory of 2628	1036	csc.exe	32
PID 1036 wrote to memory of 2628	1036	csc.exe	32
PID 1504 wrote to memory of 2944	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	34
PID 1504 wrote to memory of 2944	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	34
PID 1504 wrote to memory of 2944	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	34
PID 1504 wrote to memory of 2752	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	36
PID 1504 wrote to memory of 2752	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	36
PID 1504 wrote to memory of 2752	1504	fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe	36
PID 2752 wrote to memory of 2580	2752	rundll32.exe	37
PID 2752 wrote to memory of 2580	2752	rundll32.exe	37
PID 2752 wrote to memory of 2580	2752	rundll32.exe	37
PID 2752 wrote to memory of 2580	2752	rundll32.exe	37

C:\Users\Admin\AppData\Local\Temp\fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe
"C:\Users\Admin\AppData\Local\Temp\fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd.exe"
1⤵
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1504
- 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\385j69xi.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1036
- - 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\RESA7E4.tmp" "c:\Users\Admin\AppData\Local\Temp\CSCA7E3.tmp"
    3⤵
    PID:2628
- C:\Windows\SysWOW64\WindowsInput.exe
  "C:\Windows\SysWOW64\WindowsInput.exe" --install
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  PID:2944
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Program Files\Windows Academy\quard.ai
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Program Files\Windows Academy\quard.ai"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2580

C:\Windows\SysWOW64\WindowsInput.exe
"C:\Windows\SysWOW64\WindowsInput.exe"
1⤵
- Executes dropped EXE
PID:3044

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\Windows Academy\quard.ai

Filesize
1.2MB

MD5
8031ba7c7db878cb3ddd3bf3f9bea80b

SHA1
58bff6171067acc0b51c5c61c04de60b036bbb5c

SHA256
fe27a5091ee443a0f1b5082d2bff21654a75ff029d5ebdaaa80b108d265725cd

SHA512
581fa0775baca47a48c4b14f186d085ea8c8f37e52faa516b4bcf5bd4958b3fbde0df8dcd5ed65163a928e58ef1c4ac2938d476920be7fd8e72d90f494658d11

Download Submit
C:\Users\Admin\AppData\Local\Temp\385j69xi.dll

Filesize
76KB

MD5
314fb31a53cf3155072eaa5f556855d1

SHA1
1078e8afcb689c8149746dc17a777f9f38643899

SHA256
4e893180f5d80406f70c5e9ff8030efd3222add9c4f11efdd61bb540e73b96a8

SHA512
53130ed8dcc9613af892348e4ad21f25174bb3bff479ab17a7076e348db5fe93447cb148851fc9e8a3a550ac41f9f46d8edc52f9f13eb11c11c8fff57a695f99

Download Submit
C:\Users\Admin\AppData\Local\Temp\RESA7E4.tmp

Filesize
1KB

MD5
8d2ecbdbb315d16fda4ca842795b41bc

SHA1
ba69c8c2bd2b0622578051bf06f1eee7b3d229bb

SHA256
ba1c02bd097ff060af0d8f00c2c2c2958a77462d851bf334eeb8eaf5dc7c02f4

SHA512
edd9e46eb01ac13de567a01b156c384cd7c8e7effd16f5b8db84dc50745bbc561e3cb2a3d4bffe73a8455403bec8849f619d3b4cf6c18cf01f3ee223b6c2cf25

Download Submit
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
22602bb8bef44a1e91c89246f5778f27

SHA1
d4be97b3887a5c5ac04232ba4051d5a7712e9b28

SHA256
5c1bfbc42f42c745fe4df6f90ece84c33dc959d097e15729f571111b95b4a445

SHA512
f2c45818e6bdfa4efe55c222a5b380afa034d9311d2600c58d6c0f0aacd62bf105b333dfc9230524f93edd603426049d150d6795fe97e50986fef95d8cde6846

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\385j69xi.0.cs

Filesize
208KB

MD5
c555d9796194c1d9a1310a05a2264e08

SHA1
82641fc4938680519c3b2e925e05e1001cbd71d7

SHA256
ccbb8fd27ab2f27fbbd871793886ff52ff1fbd9117c98b8d190c1a96b67e498a

SHA512
0b85ca22878998c7697c589739905b218f9b264a32c8f99a9f9dd73d0687a5de46cc7e851697ee16424baf94d301e411648aa2d061ac149a6d2e06b085e07090

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\385j69xi.cmdline

Filesize
349B

MD5
2e58a533d6312c43272e7293d47c2689

SHA1
9b2c7ab77171c1f0ac8ba5a11be9fe023a6833fd

SHA256
9fc7da0f817f04392e19aafe037cb9279c2ac39377885c06cf503827d68e58a7

SHA512
0addf9c973ed6708fd4c66263c7ce1c8c18bb340220ef07630c5e338f661ebfea21a04d714dcd56b5b6aefc3eada209d701f171a3f1701f716b620ed26e68aaf

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\CSCA7E3.tmp

Filesize
676B

MD5
09a8b94c2a3d6093af37df5d31801ce1

SHA1
f05901c4932e979a3353b17f23df1e50e88f59ef

SHA256
284aa7fa6cd9f7e68e39d611d6c1dd72e4669507778980ccf181fce244b55e7d

SHA512
9d9060142dc2047ae36cf0b5619f56c06eabc9027dfb04f17d57944189028872f3b8dbb854ea9a115edb5688d6c7bbfebd74dace699cd917706f5bec82d72e77

Download Submit
memory/1036-17-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1036-10-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-24-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-0-0x000007FEF513E000-0x000007FEF513F000-memory.dmp

Filesize
4KB

Download
memory/1504-21-0x0000000000540000-0x0000000000552000-memory.dmp

Filesize
72KB

Download
memory/1504-23-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/1504-22-0x00000000006F0000-0x00000000006F8000-memory.dmp

Filesize
32KB

Download
memory/1504-19-0x0000000002060000-0x0000000002076000-memory.dmp

Filesize
88KB

Download
memory/1504-8-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-32-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-6-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-40-0x000007FEF4E80000-0x000007FEF581D000-memory.dmp

Filesize
9.6MB

Download
memory/1504-1-0x000000001AED0000-0x000000001AF2C000-memory.dmp

Filesize
368KB

Download
memory/1504-2-0x0000000000530000-0x000000000053E000-memory.dmp

Filesize
56KB

Download
memory/2944-34-0x0000000001040000-0x000000000104C000-memory.dmp

Filesize
48KB

Download