7753de049d1607a1a5f9686b1d41a6093c7f163742edd9d71e47e76523a3d2f8

Analysis

max time kernel
142s
max time network
137s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
28/03/2025, 00:59

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General

Target
Orcus RAT 1.9.1/Orcus.Administration/Orcus.Administration.exe
Size 3.9MB
Sample250328-bchj4ssl16
SHA256 0121f2d7ddc074ffa05619dbb2a4b555a4b550168a765b57fa8bd9298a7e4b52
MD5 37349777df1cc9c8d3d62eb733f7cd45
SHA1 456233fa947ab155dbe5636eda0a77346197bb4c
SHA512 ca4e1a39dbb0fa0c6bbef7142cf457856cc2db14c03b5b9ea5c28811a3a70cc05505320f50e133e166aad25d779ac043b0f29b09bb34a342f5111603cc5dd074
SSDEEP 49152:VZV/t1QLjeVxAl40NVANW8cyTXTG1H66VbTWnepAl4:VZVDVxAl40NG48cyTKjVbTWnepAl4
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

System Location Discovery: System Language Discovery 1 TTPs 2 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	Orcus.Administration.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90d768e07c9fdb01	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "449285490"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{06C12001-0B70-11F0-AB1A-5A9C960EEF88} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000004d03f3bd2417484ba0dd7924dc3c894b0000000002000000000010660000000100002000000001f94de553b3e5301d78e8b2b0516d53ad0bbc01602ed50e5720b3efc56570a8000000000e80000000020000200000009b05e80c6d40cc9642b917f66ad51d78b58df4c16567c7efe6e395862d89935920000000897f48986912b6ce7943d1de83d5f3221174e433ad56e9fb9ca1986eccddc7fd400000001db646f9251c038370c81cb58233a5f66df54cfbc7bb121c6732ad0042700fa2de2b3af06548fda5580e7269e06f43fb9ac86561017f0317b350eda9d87578d4	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000004d03f3bd2417484ba0dd7924dc3c894b00000000020000000000106600000001000020000000544359e97fa2b04d7adf9f358218fe83eb2da7655c955ae337073e6c059791d9000000000e8000000002000020000000a6cb30c8745bbf1074e9c2221a654ed569d7152365cf23ff8559cb491e6483a190000000f04ce068e9b603117d27d79199190ffd342dabccf958a122db7189eeeb711c8731e994718b5d14aecd9fca4422477cb9ed8c0a288afb1fcf05f0933226740b8a6f4f2b0a490fe3f029fc10a8fc764f69595eebec9b72fa748d3e2a45aad4c034dd77466b32e109a6164ebb2075e491928c631d1f87818ec551bce81c45580915cf3be4f72dea402ae38690ff743f92b7400000005dbcca67f165be0b6fffe37a804a63bfa6a3453940ce2db2ee565ad8cf8d58f4c4497991de6af653464e3b3826ddd9268821889ccca724b0fc4aa1abea39ade2	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2656	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2656	iexplore.exe
2656	iexplore.exe
2804	IEXPLORE.EXE
2804	IEXPLORE.EXE
2804	IEXPLORE.EXE
2804	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2656	2232	Orcus.Administration.exe	31
PID 2232 wrote to memory of 2656	2232	Orcus.Administration.exe	31
PID 2232 wrote to memory of 2656	2232	Orcus.Administration.exe	31
PID 2232 wrote to memory of 2656	2232	Orcus.Administration.exe	31
PID 2656 wrote to memory of 2804	2656	iexplore.exe	32
PID 2656 wrote to memory of 2804	2656	iexplore.exe	32
PID 2656 wrote to memory of 2804	2656	iexplore.exe	32
PID 2656 wrote to memory of 2804	2656	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\Orcus RAT 1.9.1\Orcus.Administration\Orcus.Administration.exe
"C:\Users\Admin\AppData\Local\Temp\Orcus RAT 1.9.1\Orcus.Administration\Orcus.Administration.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch&plcid=0x409&o1=.NETFramework,Version=v4.8&processName=Orcus.Administration.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2656
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2656 CREDAT:275457 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact