Analysis
- max time kernel
149s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20251231-en - resource tags
arch:x64arch:x86image:win10v2004-20251231-enlocale:en-usos:windows10-2004-x64system - submitted
06/01/2026, 10:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
ungziped_file.exe
Resource
win10v2004-20251231-en
8 signatures
150 seconds
General
- Target ungziped_file.exe
- Size 665KB
- Sample260106-l3m8dsfk91
- SHA256 4d785c8d5b76df07f04f87f542e375b2ac96ff64f28b6282179a005d801d9c1d
- MD5 454c0f50b56df85436d75f071927bd36
- SHA1 b20c81f00fa0f6f80b345e28317d79672b89d989
- SHA512 eb622d318b8c846776820f9effd815f5dbd813dd547c719a0f9da91e35e31fd440040b2c81df8d0174181d20bb8cb756d0a5b274dada779d457d8dc5f89f929d
- SSDEEP 12288:T64LAlkI42tAHOPe8hfxQyH+NlJy05KoZKZ4M7Fv7uUipa5ud2lrWsN/aPhO:CWw555HQJh5zMFz3iNcKQaPY
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Formbook family
- Formbook payload 1 IoCs
resource yara_rule behavioral1/memory/5268-14-0x0000000000400000-0x0000000000445000-memory.dmp family_formbook - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 6100 set thread context of 5268 6100 ungziped_file.exe 88 - System Location Discovery: System Language Discovery 1 TTPs 1 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 ungziped_file.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 6100 ungziped_file.exe 6100 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe 5268 ungziped_file.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 6100 ungziped_file.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 6100 wrote to memory of 2396 6100 ungziped_file.exe 87 PID 6100 wrote to memory of 5268 6100 ungziped_file.exe 88 PID 6100 wrote to memory of 5268 6100 ungziped_file.exe 88 PID 6100 wrote to memory of 5268 6100 ungziped_file.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6100 -
C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"2⤵PID:2396
-
-
C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
PID:5268
-