Analysis
- max time kernel
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
31/05/2026, 02:34
Behavioral task
behavioral1
Sample
PulsarExecutor.exe
Resource
win10v2004-20260513-en
4 signatures
150 seconds
General
- Target PulsarExecutor.exe
- Size 2.0MB
- Sample260531-c2fbqaay7p
- SHA256 d5b8ae432ea1553b698224f8ca5b55939d6cc93327a90d49bf76b33bb81327fe
- MD5 7680fb2685ba695d716f921cdde97450
- SHA1 bb92781e0d1f86739ed971b911a406412dfbf2e1
- SHA512 6637db779822dc73570975ad28a982e6e25fceee47a2672bf5b75a180b028e78994bdd4612c122304ba4c2ae4a2717f54423922601a0c9978d69a88475af8fe6
- SSDEEP 24576:TXVrSLScusMmOvjjhzvLSIEb0jxp9u8x/37Mfs/cwHbz4pj8C1j2mk3Ua5fiJ9UW:4uI2h331Hu8x/3ok9bz4pICVmkZ866gF
- TLSH T1C9A5C03FF28B653EE06A16367A72A110983B7A6165124C1696FCF88CCF355701E3E787
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 3624 PulsarExecutor.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 PulsarExecutor.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PulsarExecutor.tmp - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/5076-0-0x0000000000180000-0x0000000000269000-memory.dmp innosetup behavioral2/memory/5076-7-0x0000000000180000-0x0000000000269000-memory.dmp innosetup - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5076 wrote to memory of 3624 5076 PulsarExecutor.exe 81
Processes
-
C:\Users\Admin\AppData\Local\Temp\PulsarExecutor.exe"C:\Users\Admin\AppData\Local\Temp\PulsarExecutor.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5076 -
C:\Users\Admin\AppData\Local\Temp\is-DXH3DKLHGP.tmp\PulsarExecutor.tmp"C:\Users\Admin\AppData\Local\Temp\is-DXH3DKLHGP.tmp\PulsarExecutor.tmp" /SL5="$5028C,893952,893952,C:\Users\Admin\AppData\Local\Temp\PulsarExecutor.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3624
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-DXH3DKLHGP.tmp\PulsarExecutor.tmp
- Size 4.2MB
- SHA256 c2c764593c4fdad2fc3cc433fe0fecc0082ea834f70db968ad1ca4ca71a5b1f5
- MD5 2befabca0bd85b95b485cb6fdf266d7f
- SHA1 01aa8f2303e5b571d0e8cec6df692dbf4cd9fd55
- SHA512 ccdfa2982a9a61c7d184128c0048e95888b24e1c17908d76af39c00fd5c0f46973b4775e5163da3f41c0b50827d451750beb15e782cdf05a74fad29d6077e781
- SSDEEP 98304:z9SZUvl30aj90ZFcvdQ0hdgvminQLMj+Jc333P4:IItJj90Z6RgKwN4
- TLSH T109268F03F388753EE4A71A3A883FA254583F7A213916CD476BFC295C4F396416D2A787
- MD5 SHA1 SHA512 SSDEEP TLSH