Analysis
- max time kernel
153s - max time network
171s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/11/2026, 18:43
Behavioral task
behavioral1
Sample
Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe
Resource
win10v2004-20260911-en
8 signatures
150 seconds
General
- Target Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe
- Size 226.3MB
- Sample261107-xdc7nsfh44
- SHA256 698e15aec63517f01304825c2dc32eb4b2d06ecbe70b5315d5f3ed9b294ec376
- MD5 b76fc6f3cda77cb6534388460f04a64b
- SHA1 e4d2a4219eaa0c889bc702acdf6852a4b13e9b3f
- SHA512 b86b592fc8850dd5283afc47a372dc71f6a561888f58976cb7288d580611f07f285e8b3b8ac88523a708fe2923837a9732090409cb300a2a204080a1894e6a43
- SSDEEP 6291456:J8PJZd/7O0RTecyQnlHm+7h4kXu/usISEEpgwQvLeM:JwBj2QnlHm+7p+2sISjpgwELx
- TLSH T114B8331CAED39475E05BADFC4078F862FF1A9EE7A5D0014D2DA1F81CE27A581007B67A
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp - Loads dropped DLL 1 IoCs
pid Process 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp - Program crash 2 IoCs
pid pid_target Process procid_target 2640 1708 WerFault.exe 89 240 1708 WerFault.exe 89 - 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 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/4008-0-0x0000000000400000-0x000000000044B000-memory.dmp innosetup behavioral2/memory/4008-75-0x0000000000400000-0x000000000044B000-memory.dmp innosetup - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp 1708 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4008 wrote to memory of 1708 4008 Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe"C:\Users\Admin\AppData\Local\Temp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4008 -
C:\Users\Admin\AppData\Local\Temp\is-97NF1.tmp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp"C:\Users\Admin\AppData\Local\Temp\is-97NF1.tmp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp" /SL5="$400A2,235971719,261120,C:\Users\Admin\AppData\Local\Temp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1708 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 9403⤵
- Program crash
PID:2640
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 9403⤵
- Program crash
PID:240
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1708 -ip 17081⤵PID:5832
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 1708 -ip 17081⤵PID:408
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-1M1MA.tmp\_isetup\_iscrypt.dll
- Size 2KB
- SHA256 2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc
- MD5 a69559718ab506675e907fe49deb71e9
- SHA1 bc8f404ffdb1960b50c12ff9413c893b56f2e36f
- SHA512 e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63
- TLSH T11051CE835239A462C41A37B426E7E509B35B467643CE4FE33590230EF8876F80C35D90
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-97NF1.tmp\Wallpaper_Engine_v2.8.42_RePack_by_xetrin.tmp
- Size 4.0MB
- SHA256 0cb3348314f7b28f90882150b27b05200e0c1ead953f25daab26f39e2808eaa7
- MD5 71ffb1a9aff9ac19818939af788f820a
- SHA1 c86310dff939777621aee45dd081347b443f54cf
- SHA512 2ad5495aee83e230d7c27e7485f16d730c3ee9e7b026ed85142b30a269fc96e40bdcfcbd7012bc2431b558420c464d9cfac03f2aa8e6250968244e6e77648855
- SSDEEP 49152:Om1hmOrQsHQ2xmSPLP3//LEvsz+HMDmsOBHOvN20E4Xy9LO+Cs805T6u:Om1frvwu7E9HMasOsF20TyRgs8Y
- TLSH T1AD166C127344663FE06B1A36583786609A37BE607A368C6B67F43D0CCF355816F3AE52
- MD5 SHA1 SHA512 SSDEEP TLSH