87111c887d02fd60078310077aa56307ac8041fcec78f5985f2c2e9672c431ff | Triage

Analysis

max time kernel
140s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2023, 20:01

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General

Target

NA_NA_319afb31cb4d95exeexe_JC.exe
Size

70KB
MD5

319afb31cb4d95e56b23f85ca9a29473
SHA1

eb965b9a31fe53c9b29e4e49db08c604db6eb52f
SHA256

87111c887d02fd60078310077aa56307ac8041fcec78f5985f2c2e9672c431ff
SHA512

bd089dd07cefdf93f75a9f80468ba87eb15652c520b95db737f016d7d0bb42c505fbac6c8e59b633ee6f58bf8de8965a80c905416252682a707c1d45883f67f3
SSDEEP

1536:0ZZZZZZZZZZZZpXzzzzzzzzzzzzADypczUk+lkZJngWMqqU+2bbbAV2/S2OvvdZl:Ld5BJHMqqDL2/Ovvdr

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\cclvwlylndr = "C:\\Users\\Admin\\AppData\\Local\\Temp\\NA_NA_319afb31cb4d95exeexe_JC.exe"	NA_NA_319afb31cb4d95exeexe_JC.exe
Key created	\REGISTRY\USER\S-1-5-21-4176143399-3250363947-192774652-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce	NA_NA_319afb31cb4d95exeexe_JC.exe

Enumerates connected drives 3 TTPs 23 IoCs

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

Query Registry

Peripheral Device Discovery

System Information Discovery

description	ioc	Process
File opened (read-only)	\??\X:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\Y:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\A:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\M:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\N:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\Q:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\R:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\W:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\B:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\E:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\T:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\V:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\P:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\U:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\G:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\H:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\I:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\K:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\L:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\O:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\Z:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\J:	NA_NA_319afb31cb4d95exeexe_JC.exe
File opened (read-only)	\??\S:	NA_NA_319afb31cb4d95exeexe_JC.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	NA_NA_319afb31cb4d95exeexe_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	NA_NA_319afb31cb4d95exeexe_JC.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	NA_NA_319afb31cb4d95exeexe_JC.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3216	NA_NA_319afb31cb4d95exeexe_JC.exe
3216	NA_NA_319afb31cb4d95exeexe_JC.exe
3216	NA_NA_319afb31cb4d95exeexe_JC.exe
3216	NA_NA_319afb31cb4d95exeexe_JC.exe

C:\Users\Admin\AppData\Local\Temp\NA_NA_319afb31cb4d95exeexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NA_NA_319afb31cb4d95exeexe_JC.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:3216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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