565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
16-06-2024 01:10

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General

Target

565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe
Size

1.6MB
MD5

6c63f5db1f5beff0a1cb3af035ca3d4c
SHA1

d0479b0f56db0526e9e59ff816ed143873e9dd79
SHA256

565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28
SHA512

e8961da22202addd1bfb30c4ee918f330ae228dbfb2cb05d32dc7f8e2bd12737a3744108a18396302d5ee5743bda96156101b7dc449d86c4dd84dc9896a3e3f5
SSDEEP

24576:JBbdrmZoGk/52SCUAO55ksXy4gE47he4wtL/xExlzXyD:Jr3/5PkO553eEQwtqx

Score

9^/10

aspackv2

Malware Config

Signatures

Detects executables packed with ASPack 3 IoCs

resource	yara_rule
behavioral2/files/0x000700000002328e-3.dat	INDICATOR_EXE_Packed_ASPack
behavioral2/memory/4092-5-0x00000000000F0000-0x00000000000F9000-memory.dmp	INDICATOR_EXE_Packed_ASPack
behavioral2/memory/4092-11-0x00000000000F0000-0x00000000000F9000-memory.dmp	INDICATOR_EXE_Packed_ASPack

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000700000002328e-3.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	LYMDYKd.exe

Executes dropped EXE 2 IoCs

pid	Process
4092	LYMDYKd.exe
1288	csrss2.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeApp.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleCrashHandler64.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsStore_11910.1002.5.0_x64__8wekyb3d8bbwe\WinStore.App.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.StorePurchaseApp_11811.1001.18.0_x64__8wekyb3d8bbwe\StoreExperienceHost.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\110.0.5481.104\Installer\chrmstp.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{878BCDD2-1ABC-4948-8DA1-C8645DF0F833}\chrome_installer.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE	LYMDYKd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	LYMDYKd.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	LYMDYKd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	LYMDYKd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	LYMDYKd.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1288	csrss2.exe
1288	csrss2.exe
1288	csrss2.exe
1288	csrss2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	csrss2.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe
2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe
1288	csrss2.exe
1288	csrss2.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 4092	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	82
PID 2744 wrote to memory of 4092	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	82
PID 2744 wrote to memory of 4092	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	82
PID 2744 wrote to memory of 1288	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	83
PID 2744 wrote to memory of 1288	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	83
PID 2744 wrote to memory of 1288	2744	565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe	83
PID 4092 wrote to memory of 3812	4092	LYMDYKd.exe	88
PID 4092 wrote to memory of 3812	4092	LYMDYKd.exe	88
PID 4092 wrote to memory of 3812	4092	LYMDYKd.exe	88

C:\Users\Admin\AppData\Local\Temp\565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe
"C:\Users\Admin\AppData\Local\Temp\565e3379fa532b07aac8fb1b9dbdd6673fdac87c399a7800235c88e7dabe7f28.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\LYMDYKd.exe
  C:\Users\Admin\AppData\Local\Temp\LYMDYKd.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\6ad64618.bat" "
    3⤵
    PID:3812
- C:\Users\Admin\AppData\Local\Temp\csrss2.exe
  C:\Users\Admin\AppData\Local\Temp\csrss2.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\6ad64618.bat

Filesize
189B

MD5
9ad5c7c762c7aa58132ce2e6ea389721

SHA1
e4161a1b2e2c3716f26dd986387c10e44c193bd4

SHA256
024933cb3589b3d584874c00c817d576778a0fad0fb67b45341cd0223cb1feb2

SHA512
a5e7784cacd69044e44800f7eb98a4b18cfd0663364ba5042eba9865002c9bd43bb9f3eb563e4c0d2391c9fcb28925ee679c7400da0f0347207e44d5c2146837

Download Submit
C:\Users\Admin\AppData\Local\Temp\LYMDYKd.exe

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss2.exe

Filesize
892KB

MD5
a38a05e4a9dbfc6e7b6608b7f48d909c

SHA1
72013c52a8d0572c803f7f7240d84c4819e307c7

SHA256
113528adbbf5f74519d59a556e232e43f87e067ebe229ce0698bb9cd2a3656b0

SHA512
ff43ad96878bc040001b685f8e71b2b50c9cca4f627700334689c353d6bdfa34bbd8324c7342abefb9cc2bc842d3a2a728122350d8fcd44cc1f0582d33caab03

Download Submit
memory/1288-12-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2744-0-0x0000000000400000-0x00000000005A5000-memory.dmp

Filesize
1.6MB

Download
memory/2744-15-0x0000000000400000-0x00000000005A5000-memory.dmp

Filesize
1.6MB

Download
memory/4092-5-0x00000000000F0000-0x00000000000F9000-memory.dmp

Filesize
36KB

Download
memory/4092-11-0x00000000000F0000-0x00000000000F9000-memory.dmp

Filesize
36KB

Download