a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46

Analysis

max time kernel
91s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
27/12/2022, 07:14

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General

Target

a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
Size

44KB
MD5

c159afb7d2111690326cad610776db34
SHA1

228239d1bf7020ecdc4021f3c20a14041b210d78
SHA256

a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46
SHA512

116f754bfb5d9efd73bdd9a8aaa004e6661248a7e726db54a810e581f7b6fd8f9306c858334c67fe5932d18dfaef015117a0c9a4e57efa2deb3610fa24ccb5bf
SSDEEP

768:DKliIdJ0BEgMYojM5Ar/xY6Xc4FSimT3oDz/KVAhuxYFk:+ddiB5kM5Ar/S6Xc4FnmT3oDz/KVCuI

Score

8^/10

ransomware

Malware Config

Signatures

Modifies extensions of user files 6 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	C:\Users\Admin\Pictures\UnprotectResolve.raw.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File renamed	C:\Users\Admin\Pictures\CopyCompare.tiff => C:\Users\Admin\Pictures\CopyCompare.tiff.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened for modification	C:\Users\Admin\Pictures\CopyCompare.tiff.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File renamed	C:\Users\Admin\Pictures\SkipTrace.tif => C:\Users\Admin\Pictures\SkipTrace.tif.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened for modification	C:\Users\Admin\Pictures\SkipTrace.tif.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File renamed	C:\Users\Admin\Pictures\UnprotectResolve.raw => C:\Users\Admin\Pictures\UnprotectResolve.raw.NOKOYAWA	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe

Enumerates connected drives 3 TTPs 24 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\N:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\M:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\J:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\L:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\V:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\K:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\Q:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\Y:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\I:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\P:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\S:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\G:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\B:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\W:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\R:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\U:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\A:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\F:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\H:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\Z:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\X:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\E:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\T:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
File opened (read-only)	\??\O:	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2680	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
2680	a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe

C:\Users\Admin\AppData\Local\Temp\a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe
"C:\Users\Admin\AppData\Local\Temp\a32b7e40fc353fd2f13307d8bfe1c7c634c8c897b80e72a9872baa9a1da08c46.exe"
1⤵
- Modifies extensions of user files
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
PID:2680

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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