Analysis
- max time kernel
40s - max time network
23s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/10/2026, 14:12
Behavioral task
behavioral1
Sample
K-Lite_Codec_Pack_2000_Standard.exe
Resource
win10v2004-20260911-en
7 signatures
40 seconds
General
- Target K-Lite_Codec_Pack_2000_Standard.exe
- Size 39.3MB
- Sample261002-rhzctazz4j
- SHA256 1cc18f454a836ae59db6305ae08bd8b0001ba5ecc5679a60841dd5d794a2ce52
- MD5 bb0d50e70f568d927fffea707e702d47
- SHA1 52f1db934d60a7d20438cde61cb494fee6a28a29
- SHA512 e7ff2aa26f76d979a92f257d1dad8775fc226a2b0c03f9504da7405f437c1db9621b3f7cfc5421a0f6da0da66b131b98b0ba6052e2b98358d7d6c52a4e1a8f5c
- SSDEEP 786432:oxO4IDkZtL02aqf2WnAAhVYe/7++StLkSQdIZ1144:oxODk/0gAu/tShlQdaT44
- TLSH T17197335AB14184E3D28163F5BBC5DB28662F7D2049E243A63DC37CE6FA33B5614B035A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Control Panel\International\Geo\Nation K-Lite_Codec_Pack_2000_Standard.tmp - Executes dropped EXE 1 IoCs
pid Process 3672 K-Lite_Codec_Pack_2000_Standard.tmp - Loads dropped DLL 2 IoCs
pid Process 3672 K-Lite_Codec_Pack_2000_Standard.tmp 3672 K-Lite_Codec_Pack_2000_Standard.tmp - 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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language K-Lite_Codec_Pack_2000_Standard.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language K-Lite_Codec_Pack_2000_Standard.tmp - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/5892-1-0x0000000000400000-0x000000000047B000-memory.dmp innosetup behavioral2/memory/5892-20-0x0000000000400000-0x000000000047B000-memory.dmp innosetup - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 K-Lite_Codec_Pack_2000_Standard.tmp Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz K-Lite_Codec_Pack_2000_Standard.tmp - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5892 wrote to memory of 3672 5892 K-Lite_Codec_Pack_2000_Standard.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\K-Lite_Codec_Pack_2000_Standard.exe"C:\Users\Admin\AppData\Local\Temp\K-Lite_Codec_Pack_2000_Standard.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5892 -
C:\Users\Admin\AppData\Local\Temp\is-T6H8D.tmp\K-Lite_Codec_Pack_2000_Standard.tmp"C:\Users\Admin\AppData\Local\Temp\is-T6H8D.tmp\K-Lite_Codec_Pack_2000_Standard.tmp" /SL5="$500E0,40222011,446464,C:\Users\Admin\AppData\Local\Temp\K-Lite_Codec_Pack_2000_Standard.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:3672
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-0MCVH.tmp\detect_speakerconfig.dll
- Size 67KB
- SHA256 b8644e445548d7af65f4619e3acbed248f94e65c69fe88262837f49e77e00960
- MD5 10f0c13b1b75b21bda380be20086f932
- SHA1 3ca015e0ca59ccf916eee142e18427ee0ede014e
- SHA512 5cbc60d51f7e879fccee0a125c81c38704aaf74eaca84a91433a1c8ff370380e96c4b745703b5ab0c73e36f5d7e8975bd62ad46130a9511e8c5b21f270f2fca6
- SSDEEP 1536:wzYdGiJBGyIKfl236FbgRCo3sWicdaG5N8Io:wzYdzHFt237HFaG8Io
- TLSH T141635A10B6E1C4B1E1BE2A394870C6A55E7D7C104FE59DAF2B99022E0F741D2A735E3B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-0MCVH.tmp\klcp_gpu_info.dll
- Size 75KB
- SHA256 96cbabac80d34411ae2efcadea9ce858454bbd6b5a02c211a195cb23dbd8cebd
- MD5 4b0f30a967a9b2ea7065e5f5bd949c4c
- SHA1 d6975e9bb5e1ecedbe596f86bf5ba0fd4d80f293
- SHA512 8c91ae448557d44c0ccd706e0e22b89d8049a152b9e3256c25ce6dd878bb48e74d8c1bdaad65c526ab1985a12a4848e254da3f9ca2a268e68fccc9f70f594655
- SSDEEP 1536:dimaHUIBaUuW1+0+sw5ezCnw4sWvTcdbNSC1Dphp:dimaza9wXzwwPbNSC1Dphp
- TLSH T1C0736C01B6D1C871E57E1E381875C6A46B3EB9111EE49DAF3B89026E0F742D0EE35E36
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-T6H8D.tmp\K-Lite_Codec_Pack_2000_Standard.tmp
- Size 2.4MB
- SHA256 8559f0ca2bfe390985d4bec0467bac359447625c9cd18415ca8b8c5442850e6d
- MD5 e67220c73e68db705196df1456b8fde6
- SHA1 69b1594183865948478ccf9ec205c02aaeb4afbc
- SHA512 27e0fcdb612dd39e32df9dc9bff6abd23ae5c987a9cc778641c1295e3f1b132ff45a6bc7e55f3ec09309d5955c2ef104240867900ad99440b1b16b4634be7399
- SSDEEP 49152:rV7OXY3hbzs2HyhgFuwbieQ2QLPoTd+Q3336I:rZ/HBowbieQ2WO333L
- TLSH T151C58EAAE3854637D0522A395C67D3945C3FFEB01E24AC0B7AEC7D4C8E3565C3A28356
- MD5 SHA1 SHA512 SSDEEP TLSH