Analysis
-
max time kernel
94s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
14-01-2025 01:40
Behavioral task
behavioral1
Sample
ransomware.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ransomware.exe
Resource
win10v2004-20241007-en
General
-
Target
ransomware.exe
-
Size
147KB
-
MD5
c09185c157831e4915c255d7002941f4
-
SHA1
beca597f2c2c120c3d74163501a81f56664ff4f7
-
SHA256
6f3d87f3dcfd248e64d26cf338a19f41a6f93affdde5fab071a631ff38637757
-
SHA512
a843854ca79f4d98938635612d20f3d5b79d8661ee91d1ae130b2deffe95e44d7028f76b8b221c87fab0638afe5baf3c55e8348f8aa10dddc90133167a3c17bf
-
SSDEEP
3072:SqJogYkcSNm9V7DnfX/91c6G+Mqc+2EIEMF+T:Sq2kc4m9tDnfXPc6g+2XEMF
Malware Config
Extracted
C:\5VFg9o5tW.README.txt
Signatures
-
Renames multiple (639) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation 8A7D.tmp -
Deletes itself 1 IoCs
pid Process 2656 8A7D.tmp -
Executes dropped EXE 1 IoCs
pid Process 2656 8A7D.tmp -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-4089630652-1596403869-279772308-1000\desktop.ini ransomware.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4089630652-1596403869-279772308-1000\desktop.ini ransomware.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
-
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2656 8A7D.tmp -
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 ransomware.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8A7D.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe 1228 ransomware.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp 2656 8A7D.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeDebugPrivilege 1228 ransomware.exe Token: 36 1228 ransomware.exe Token: SeImpersonatePrivilege 1228 ransomware.exe Token: SeIncBasePriorityPrivilege 1228 ransomware.exe Token: SeIncreaseQuotaPrivilege 1228 ransomware.exe Token: 33 1228 ransomware.exe Token: SeManageVolumePrivilege 1228 ransomware.exe Token: SeProfSingleProcessPrivilege 1228 ransomware.exe Token: SeRestorePrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSystemProfilePrivilege 1228 ransomware.exe Token: SeTakeOwnershipPrivilege 1228 ransomware.exe Token: SeShutdownPrivilege 1228 ransomware.exe Token: SeDebugPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeBackupPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe Token: SeSecurityPrivilege 1228 ransomware.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1228 wrote to memory of 2656 1228 ransomware.exe 84 PID 1228 wrote to memory of 2656 1228 ransomware.exe 84 PID 1228 wrote to memory of 2656 1228 ransomware.exe 84 PID 1228 wrote to memory of 2656 1228 ransomware.exe 84 PID 2656 wrote to memory of 1032 2656 8A7D.tmp 85 PID 2656 wrote to memory of 1032 2656 8A7D.tmp 85 PID 2656 wrote to memory of 1032 2656 8A7D.tmp 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\ransomware.exe"C:\Users\Admin\AppData\Local\Temp\ransomware.exe"1⤵
- Drops desktop.ini file(s)
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1228 -
C:\ProgramData\8A7D.tmp"C:\ProgramData\8A7D.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\8A7D.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1032
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD56327675b376031d39fc0388f2f6efbe0
SHA1503fff9a387b0810f5b4bdc88a5999cd6465bee1
SHA25604838459a4a59504a3077236e9e146fb926c6c74e495bb6c1a9e97ce8b2ce94a
SHA512eb80e54f76e0d1c9d72a963a2b2d1005016e2afefa3805786a34b96d31a5fb3ed606ad72a56a066a311cccaa8849cce22f14767bb50e8cd86c5ce9fcdb37f691
-
Filesize
1KB
MD517e3459297cd54cf124d089248ff395b
SHA1617e2ddd0a69a242d4da510d32670a170ff667fa
SHA25694aaefad5d5a9fea79e9271941a5e874951cceac46a110ef0f1de841051f6421
SHA512280536a672423a4bf4df1cb7cd49bd0a7a3f731dfe4543359a84d3a82d734e3882386b336af62a77e2763cbe7fe9e4ff6ae852241dd61ab702cda1b0d2f02e13
-
Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
-
Filesize
147KB
MD5b0e64a04e16cf39817944f1548d9124c
SHA13d5176a35aca9cbc9a6f6a63699abf020167f6fa
SHA256878fcd7dca32ccbe19019d0b7c64be71c71fb12f7ce3c741b01af12b0a7c8601
SHA5125379b82b41e508bf4e081ec4b2e5864e51530da06c3b6d1771fe759facb0c52fbe12febcff9d2b9be0ea5e209a7c15e3d97ec69d58cb1a28773432fad7e755ad
-
Filesize
129B
MD5ae61950bb32c762d9ac4a6b7add2ea8d
SHA1c05e031914c01d4dd7dfc497a8e7ef915a3b0b3e
SHA256a62dd83ad3d2a139c54e9ea5db9465048d46fd039556bc9bde5850fad51d77c0
SHA512b1cba96108f7d4381362a39bf2c2c8508dfa86995d1549c3a8be890e881dc35a804f808475fecf4683179f43f107bc87f63d7d791a57393ca14494b261622b19