Analysis
- max time kernel
149s - max time network
100s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
14/04/2026, 01:52
Static task
static1
Behavioral task
behavioral1
Sample
9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
Resource
win11-20260130-en
General
- Target 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe
- Size 179KB
- Sample260414-capfbaav6q
- SHA256 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0
- MD5 06ce6cd8bde756265f95fcf4eecadbe9
- SHA1 bacf50b20f1cf2165ac96535aeac36b49c8a8677
- SHA512 b13677539da247707e7016c56aaba889826648b3050428974aca6d109d7fa88d7e610a61214ddee06f1fa09c287ade6f71182b999955c6d3674d5701b0f89326
- SSDEEP 3072:U0bRbeSCuF7PXuwFyoJ+mKTrZYzXlEmS6ZCHOoSnEYXosM:U2FeSCulPXuwIoWT9YlhD4d
- TLSH T1B304AE21B4C2C0B1E5B74A7022F8DBB56D7D7A601B3094EFA394077B8E344E26639D67
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: HelloKitty Ransomware
Ransomware family which has been active since late 2020, and in early 2021 a variant compromised the CDProjektRed game studio.
- Renames multiple (149) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\F: 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 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 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1504 cmd.exe 844 PING.EXE - Runs ping.exe 1 TTPs 1 IoCs
pid Process 844 PING.EXE - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 5176 vssvc.exe Token: SeRestorePrivilege 5176 vssvc.exe Token: SeAuditPrivilege 5176 vssvc.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3112 wrote to memory of 1504 3112 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe 85 PID 1504 wrote to memory of 844 1504 cmd.exe 87 - Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe"C:\Users\Admin\AppData\Local\Temp\9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe"1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 127.0.0.1 & del 9a7daafc56300bd94ceef23eac56a0735b63ec6b9a7a409fb5a9b63efe1aa0b0.exe2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:844
-
-
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5176
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\Desktop\read_me_lkdtt.txt
- Size 1KB
- SHA256 97109718795f688bdeaec143eff588df1f053c5f1be69fdfd953c8751132fd3f
- MD5 10c06898c1a8ee37c2eb262d5c477335
- SHA1 363bbdda4afd09205a6434fd690a38b5758ff062
- SHA512 0efbc79d3b684af74b85744cd390ac1bac2cca018f859447f686c83106590150d11e55f0e1bfba6b7e86b683659c3a0f4da49331dca8a0bf022fd7ed5e942b74
- TLSH T17221D52633F8404EF2F76B656AB921B15B367D93BC38DA8C0281010D0CE9F1598B0B7B
- MD5 SHA1 SHA512 TLSH