Analysis
-
max time kernel
170s -
max time network
172s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
20-10-2023 12:06
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe
Resource
win7-20230831-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
9 signatures
150 seconds
General
-
Target
a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe
-
Size
848KB
-
MD5
fcf04d6f797576c8795ccd8c4cdae68e
-
SHA1
ab98ce9d0fe89d27691cc27ce9adc3e2bc555950
-
SHA256
a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760
-
SHA512
a4e92b8ecf80a573ba7bba9e453c78c273269e26aed4d0274f290961a3b500ba6c1343d40fe78b5d25336f727eb6b6a4d04d1f9971f0e563173e8bb62a183edf
-
SSDEEP
12288:mLL/Ws9Gu+bS6scH3ouHAVQcIaiAJKZADpvzTnFotWzKICt5Jjrc5f1N+qa:S6xNXXougGegZeVnatWzKtB6N+qa
Score
10/10
Malware Config
Signatures
-
Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
-
Chinese Botnet payload 2 IoCs
resource yara_rule behavioral2/memory/4328-13075-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet behavioral2/memory/4328-13080-0x0000000000400000-0x000000000051B000-memory.dmp unk_chinese_botnet -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1926387074-3400613176-3566796709-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Skokkai.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe" a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\P: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\S: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\V: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\Z: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\G: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\I: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\L: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\N: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\B: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\J: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\K: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\T: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\X: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\H: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\O: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\R: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\W: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\Y: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\E: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\M: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\Q: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe File opened (read-only) \??\U: a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 64 IoCs
pid Process 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe 4328 a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe"C:\Users\Admin\AppData\Local\Temp\a3f066cfd5e7c2f86e9177a30dcc7fac86edd2e7a9a5dd3723a3332397517760.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:4328