Analysis
- max time kernel
150s - max time network
133s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/08/2026, 03:15
Static task
static1
Behavioral task
behavioral1
Sample
2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
Resource
win11ltsc2024-20260709-en
General
- Target 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
- Size 5.0MB
- Sample260802-dr7hwstard
- SHA256 b3c5add639f62457650d81ed8930d90ffcbb2ff4baef84eb550ee76ee74953d2
- MD5 433af0fd3cc1dc32e06e59a038e24046
- SHA1 87b56e29fbca1ba13d6deeabc5dcf0ca2d8dbff6
- SHA512 1182c772a855976fd44694dab7b9ec13066d495eaa8943c1a8868e9c14899e41e99d005dcbbbd0d93fbe863ebedf273c44e9374bc0778dc1e8a3fbeae99755c1
- SSDEEP 49152:lSKy7QeeHFw1IkSKreUnlzevKgBOl9fsaUiDbatPEHF6Z+EK/hvgcEfLUTq0gDNW:lBIQ9zNBmsOqQgDNcEanicl5P
- TLSH T155367D4663F885E9E5B7D1788E7AD632EBB17C120530A34F07A0DA9B1F376205E2D721
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Deletes itself 1 IoCs
pid Process 4120 temp0a1.exe - Executes dropped EXE 5 IoCs
pid Process 4120 temp0a1.exe 916 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe 4656 monsys.exe 2532 temp0a1.exe 4236 monsys.exe - Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\jaremore = "C:\\Windows\\monsys.exe" temp0a1.exe - Enumerates connected drives 3 TTPs 25 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\B: temp0a1.exe File opened (read-only) \??\B: temp0a1.exe File opened (read-only) \??\M: temp0a1.exe File opened (read-only) \??\V: temp0a1.exe File opened (read-only) \??\Y: temp0a1.exe File opened (read-only) \??\A: temp0a1.exe File opened (read-only) \??\A: temp0a1.exe File opened (read-only) \??\D: temp0a1.exe File opened (read-only) \??\H: temp0a1.exe File opened (read-only) \??\I: temp0a1.exe File opened (read-only) \??\K: temp0a1.exe File opened (read-only) \??\Q: temp0a1.exe File opened (read-only) \??\T: temp0a1.exe File opened (read-only) \??\G: temp0a1.exe File opened (read-only) \??\J: temp0a1.exe File opened (read-only) \??\O: temp0a1.exe File opened (read-only) \??\P: temp0a1.exe File opened (read-only) \??\R: temp0a1.exe File opened (read-only) \??\S: temp0a1.exe File opened (read-only) \??\U: temp0a1.exe File opened (read-only) \??\X: temp0a1.exe File opened (read-only) \??\L: temp0a1.exe File opened (read-only) \??\N: temp0a1.exe File opened (read-only) \??\W: temp0a1.exe File opened (read-only) \??\Z: temp0a1.exe - Drops file in System32 directory 1 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\bb.ico temp0a1.exe - Drops file in Program Files directory 6 IoCs
description ioc Process File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe temp0a1.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVShNotify.exe temp0a1.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe temp0a1.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe temp0a1.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\MavInject32.exe temp0a1.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe temp0a1.exe - Drops file in Windows directory 7 IoCs
description ioc Process File opened for modification C:\Windows\monsys.exe temp0a1.exe File created C:\Windows\monsys.exe temp0a1.exe File created C:\Windows\temp0a1.exe 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe File opened for modification C:\Windows\file0a0.dat 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe File opened for modification C:\Windows\monsys.exe temp0a1.exe File created C:\Windows\temp0a1.exe monsys.exe File opened for modification C:\Windows\file0a0.dat monsys.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 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 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language temp0a1.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language monsys.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language temp0a1.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 5000 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe 5000 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe 4656 monsys.exe 4656 monsys.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4236 monsys.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 5000 wrote to memory of 4120 5000 2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe 89 PID 4120 wrote to memory of 916 4120 temp0a1.exe 90 PID 4656 wrote to memory of 2532 4656 monsys.exe 94 PID 2532 wrote to memory of 4236 2532 temp0a1.exe 95
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\temp0a1.exe"C:\Windows\temp0a1.exe" ejecuta2⤵
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120 -
C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exeC:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe3⤵
- Executes dropped EXE
PID:916
-
-
-
C:\Windows\monsys.exeC:\Windows\monsys.exe1⤵
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4656 -
C:\Windows\temp0a1.exe"C:\Windows\temp0a1.exe" ejecuta2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532 -
C:\Windows\monsys.exeC:\Windows\monsys.exe3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:4236
-
-
Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Program Files\Common Files\microsoft shared\ClickToRun\IntegratedOffice.exe
- Size 9.0MB
- SHA256 d10747b0f47288c62e9d285fccf9c5301fb2a24f99333528427ffe19fc52ce7a
- MD5 04b6fa3e8fbf03b6ae6fa8e265b6be4e
- SHA1 ea0930501d7fc47bb9178ee3a1069fa07089687c
- SHA512 b8937dd24ed37ea20ad0e9731708e0a23e77f26f91555fa9f8bc8994529a69ead315fc54f6cfc07beba059eeed09cc0925fabce51c1aec79524410875c265e6b
- SSDEEP 98304:BIQ9zNBmsOqQgDNcEanicl5CQvGAdlCEL8c/bRNw5CF:uMRB1igDNTanbJvyEYc/b3w8F
- TLSH T100A66C5567F880F5E0B7E178897AC672FBB278120931A74F06A1CA5F2F336605E2D721
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\2026-08-02_433af0fd3cc1dc32e06e59a038e24046_cobalt-strike_elex_icedid_njrat_vidar.exe
- Size 47KB
- SHA256 0af4f1cce16cb534ed2f59dee0d3c4b9b215a650d8a3fb9686b6643530af766a
- MD5 f68fd3a74acbdb7cc588ed35f7c431ed
- SHA1 e43e85c76c3ea9a5d564c0b9fc60227024282767
- SHA512 5213a2291af2cc01e25eaee12bc51c08d04e7cc2b441f0de071510ae33bf78ccaa219b393f4707bc8a7ef6d5363818fce02aa12c5cc2e5c22a66da687ac4e1fb
- SSDEEP 768:F9v0+Wh0VwUbH+48TLMM0l7h4TAWzu0eAaP0KqUEeIYW:F9ecnr8fMMq2TbzQAXFreIv
- TLSH T1A3233B41A7AC821BE9FF1F30B5F1C5121E7CBBC63831CA5E1999B49A2D637C1861172B
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\SysWOW64\bb.ico
- Size 4KB
- SHA256 823cbf89390733bd09d5541839786670d748064e50ff235928abd9e2433192b7
- MD5 84a8ab049bb249ce1b1e25d5648571a9
- SHA1 66b48c0e63f542b74a5b003af9660222c1d0f324
- SHA512 8ce3b7fa9917ee0164b3a09920aaa1ec6806159aab184e3fbb15fc58134c64957811eded9ad3d459c0c1a257aee3129473136d1800f5d89bc9adc5a43a4b6c64
- SSDEEP 48:z2pe4sdnY/3XXXXXXXXXXcDD3V+yD3/6k0vucpb:z6bsdnY/XXXXXXXXXXcDD3Vr/6Jvu6
- TLSH T19C91553EA718B8B0F98E6DB1236FC064505E7504151BCDA6B1A9FCB07F92CEA40143CE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\file0a0.dat
- Size 119B
- SHA256 69e56fa1a4f926df9eb0ba6707be254994d6c7f0003cd02ec751a7c8d545c385
- MD5 76f2a2835323f02f073b3e25554508e0
- SHA1 2392164ac435c6b5ca34fdcb632b0e14866369fb
- SHA512 c76eaf66a489cf2356769d886e93dd2f55868dd654eac5ddfafede7a1db85d646f59d4e0952c783cb5b873a71e2ded64decc5e4d5ea48f66047fbdfa2f682186
- TLSH T1C3B09B44C597C9424822685B0DA61858C455380C5F562754DB48851910D544C7C52755
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\file0a0.dat
- Size 21B
- SHA256 1aff43dec56e65377ceea446043303ce693f738a4f66cb9328b15ece74f87bf2
- MD5 bb8655bdb5f6d87c5ec4bc3163093873
- SHA1 649664fff619954ccbedee1f33cfa1030b1613cb
- SHA512 98bbf82e4b7aeebefac45e25a132522c39e8361125754f8f4f792b506ab038acf3d1a768e9f1c51690d6069dac102c7d80c9097b478bba7b28439cd4464f9e39
- MD5 SHA1 SHA512
- Path C:\Windows\monsys.exe
- Size 4.9MB
- SHA256 95ff667b36dbde1bb9bf740dd6f9e5b74ce9e0e9becd427600aca700261a8470
- MD5 9b184bbf6c7d1bacd7e292241002e5bf
- SHA1 a537ab7af82d76d6d9f73e499a93536695250373
- SHA512 8db2c3d1038569f8b5c251c209c2c9cfca400d8ed5daa99856f46bd3eca7e5a1ac6cfcc16e473e57ab29f64f8d7702db069463a4a6e969720d57d3e27b38c57e
- SSDEEP 49152:eKy7QeeHFw1IkSKreUnlzevKgBOl9fsaUiDbatPEHF6Z+EK/hvgcEfLUTq0gDNaI:dIQ9zNBmsOqQgDNcEanicl58
- TLSH T177367D4663F885E9E5B7D1788E7AD632EBB17C120530A34F07A0DA9B1F376205E2D721
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\monsys.exe
- Size 4.9MB
- SHA256 59ad37b2d9de1201882468c6f0fcb25c6d0f9960b43308dc6b251958dfad168a
- MD5 f8c086d45eb2ca3fe663c972c6a27c2d
- SHA1 737618588573097fbb87d5108e43fc8381bffdf2
- SHA512 45ca8dac79a346fa4bc51f5dd128c52582e57cf86e5c102faa66a02808e3d1eb946898e837ccc776b0dde419fb00aab6e6f36de5214d3d1f35e40a2ec95fbc3d
- SSDEEP 49152:1Ky7QeeHFw1IkSKreUnlzevKgBOl9fsaUiDbatPEHF6Z+EK/hvgcEfLUTq0gDNar:MIQ9zNBmsOqQgDNcEanicl5P
- TLSH T1BA366D4663F885E9E5B7D1788E7AD632EBB17C120530A34F07A0DA9B1F376205E2D721
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\temp0a1.exe
- Size 5.0MB
- SHA256 b3c5add639f62457650d81ed8930d90ffcbb2ff4baef84eb550ee76ee74953d2
- MD5 433af0fd3cc1dc32e06e59a038e24046
- SHA1 87b56e29fbca1ba13d6deeabc5dcf0ca2d8dbff6
- SHA512 1182c772a855976fd44694dab7b9ec13066d495eaa8943c1a8868e9c14899e41e99d005dcbbbd0d93fbe863ebedf273c44e9374bc0778dc1e8a3fbeae99755c1
- SSDEEP 49152:lSKy7QeeHFw1IkSKreUnlzevKgBOl9fsaUiDbatPEHF6Z+EK/hvgcEfLUTq0gDNW:lBIQ9zNBmsOqQgDNcEanicl5P
- TLSH T155367D4663F885E9E5B7D1788E7AD632EBB17C120530A34F07A0DA9B1F376205E2D721
- MD5 SHA1 SHA512 SSDEEP TLSH