Analysis
-
max time kernel
147s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
23-05-2024 06:38
Static task
static1
Behavioral task
behavioral1
Sample
cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe
Resource
win10v2004-20240508-en
General
-
Target
cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe
-
Size
1.8MB
-
MD5
b771a84de695bb44356e7f8183d7756f
-
SHA1
3e1b56590fc989c0b86ab5bd0395f872d70ede9c
-
SHA256
cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7
-
SHA512
56a2522eaeb4fa5a08e9dbdf83dc751303fafc4f52f36d8f58824b141fa94c7276c0054886c8093db9654658b6dc11810df5fb8c6a0be02d3507c0249d232eb7
-
SSDEEP
24576:FBfuZfeq6slO6hTdtTF+TxMoxQH1Tj4wtjYZH1DmoYYzi3WH45yv+OueSJhm9e:F7qF3JtTF+TxMoxc1TU+j+dAzGwlrh
Malware Config
Extracted
stealc
Signatures
-
Detect Vidar Stealer 8 IoCs
Processes:
resource yara_rule behavioral1/memory/5052-1-0x0000000003FD0000-0x0000000004119000-memory.dmp family_vidar_v7 behavioral1/memory/3232-4-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-10-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-8-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-14-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-15-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-32-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 behavioral1/memory/3232-33-0x0000000000400000-0x0000000000646000-memory.dmp family_vidar_v7 -
Downloads MZ/PE file
-
Executes dropped EXE 1 IoCs
Processes:
kat5227.tmppid process 3232 kat5227.tmp -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Suspicious use of SetThreadContext 1 IoCs
Processes:
cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exedescription pid process target process PID 5052 set thread context of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp -
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
kat5227.tmpdescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString kat5227.tmp -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
kat5227.tmppid process 3232 kat5227.tmp 3232 kat5227.tmp -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exedescription pid process target process PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp PID 5052 wrote to memory of 3232 5052 cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe kat5227.tmp
Processes
-
C:\Users\Admin\AppData\Local\Temp\cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe"C:\Users\Admin\AppData\Local\Temp\cdc551888c5e383bf9e4f62f2a075b3f3d07004f82f7071356b72465db22b8a7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5052 -
C:\Users\Admin\AppData\Local\Temp\kat5227.tmpC:\Users\Admin\AppData\Local\Temp\kat5227.tmp2⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3232
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Temp\kat5227.tmpFilesize
861KB
MD566064dbdb70a5eb15ebf3bf65aba254b
SHA10284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA2566a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f
-
memory/3232-4-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-10-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-8-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-14-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-15-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-17-0x000000001DC50000-0x000000001DEAF000-memory.dmpFilesize
2.4MB
-
memory/3232-32-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/3232-33-0x0000000000400000-0x0000000000646000-memory.dmpFilesize
2.3MB
-
memory/5052-0-0x0000000002230000-0x0000000002231000-memory.dmpFilesize
4KB
-
memory/5052-1-0x0000000003FD0000-0x0000000004119000-memory.dmpFilesize
1.3MB
-
memory/5052-9-0x0000000000400000-0x00000000005D1000-memory.dmpFilesize
1.8MB