cf0b47eafa7787a698bc8dbb62d18f1d16d0659ff7bd7e6312ccb50b08b754b6

Analysis

max time kernel
121s
max time network
136s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/02/2025, 13:32

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General

Target
net8.0-windows/Astral Stealer.exe
Size 139KB
Sample250203-qte8mstrak
SHA256 1e7a930303762a3a1f8678da099225d9276d1a9fa16ced07a9fb4f14e0201bd9
MD5 726c717d3e26f216b316f169ae4befd2
SHA1 673efa718917cfd5685a3fa91f8ca0607ee59bda
SHA512 2438ec07d41d19f7c4aa1885408784f5d68bcf979b5481cf0de14bfdb5d91d9b96ef6d651291733e4141e4b8f23bbb139baa04ebb92033ca9c4b9797519adb52
SSDEEP 3072:PiS4omp03WQthI/9S3BZi08iRQ1G78IVn2sbS7cJp8lt2:PiS4ompB9S3BZi0a1G78IVAcLct
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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	IEXPLORE.EXE

System Time Discovery 1 TTPs 1 IoCs

Adversary may gather the system time and/or time zone settings from a local or remote system.

discovery

System Time Discovery

T1124

pid	Process
2916	iexplore.exe

Modifies Internet Explorer settings 1 TTPs 34 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e6643bffdb13bd43884ff7073d2b8c7a0000000002000000000010660000000100002000000065d9c58395f913da3d79c93585b6a4a975e08f7ef32fc6f9b3f86d7d21212698000000000e8000000002000020000000964a2641645a77eb4f13df17cc698b9d190dd1867768a07e7716c53547e0a5f6200000002b91fed8626852e9a0887d4fdae4eb822b31efc4480a804c078588725fdf09d2400000009ed49d0713dc3561bbebcb6aad61e4423f92b08be7d4678ec999da6b0a24e1a397eec51c0b147c26150546b3f667966790ff46b223c393071ad566875d7e2253	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{691741A1-E233-11EF-BF61-EAF933E40231} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = e0d732404076db01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444751458"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2916	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2916	iexplore.exe
2916	iexplore.exe
540	IEXPLORE.EXE
540	IEXPLORE.EXE
540	IEXPLORE.EXE
540	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2916	1992	Astral Stealer.exe	31
PID 1992 wrote to memory of 2916	1992	Astral Stealer.exe	31
PID 1992 wrote to memory of 2916	1992	Astral Stealer.exe	31
PID 2916 wrote to memory of 540	2916	iexplore.exe	32
PID 2916 wrote to memory of 540	2916	iexplore.exe	32
PID 2916 wrote to memory of 540	2916	iexplore.exe	32
PID 2916 wrote to memory of 540	2916	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\net8.0-windows\Astral Stealer.exe
"C:\Users\Admin\AppData\Local\Temp\net8.0-windows\Astral Stealer.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1992
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" https://aka.ms/dotnet-core-applaunch?missing_runtime=true&arch=x64&rid=win-x64&os=win7&apphost_version=8.0.6&gui=true
  2⤵
  - System Time Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2916 CREDAT:275457 /prefetch:2
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:540

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

System Time Discovery

T1124

Lateral Movement

Collection

Command and Control

Exfiltration

Impact