4063e9392a870c336313c33c498fccff27bc86a20b925e3d9d418b20613eee4b

Analysis

max time kernel
98s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2023 11:14

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General

Target

coco.exe
Size

3.8MB
MD5

3714bf1b2ccb2d589bbf9fc56b95f34f
SHA1

094ca2a456841a37d53724f9cd242af7f2a87945
SHA256

4063e9392a870c336313c33c498fccff27bc86a20b925e3d9d418b20613eee4b
SHA512

44271307b886aadc028e5874444d4241ba9790bba8fa7cf8b93371f051261b2adab065012fa84ce8674a43df07bdba63761cb614dc0c986982718a2276f241bc
SSDEEP

98304:TY+I/xOyEEaO5PsR9urjsFFZ9iZ1+AhMr+rCIvdvA92RxHGf:TZI/AyEEf5zrIZ9i+9rBKxlhm

Score

9^/10

evasion trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

coco.exesvcupdater.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	coco.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	svcupdater.exe

Executes dropped EXE 1 IoCs

Processes:

svcupdater.exe

pid process

4892 svcupdater.exe

pid	process
4892	svcupdater.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

coco.exesvcupdater.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	coco.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svcupdater.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svcupdater.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	coco.exe

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

coco.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation coco.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	coco.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

coco.exesvcupdater.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	coco.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	svcupdater.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1972 schtasks.exe

pid	process
1972	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

coco.exe

description	pid	process	target process
PID 4292 wrote to memory of 1972	4292	coco.exe	schtasks.exe
PID 4292 wrote to memory of 1972	4292	coco.exe	schtasks.exe
PID 4292 wrote to memory of 1972	4292	coco.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\coco.exe
"C:\Users\Admin\AppData\Local\Temp\coco.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:4292

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /tn "svcupdater" /tr "C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
2⤵
- Creates scheduled task(s)
PID:1972

C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
PID:4892

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
Filesize
760.8MB

MD5
10b68a3529292bcea49c7149e12fa526

SHA1
3aef476ce74bac63071a02b40770a60128730792

SHA256
50c64aea0a5e56c95fa1e4f9369ccdda0ecfab89b75819a3216400c501f68a5d

SHA512
5ce617de22597ddb1103e74e30f69e5057d8cb724466885f4b48fd77ad03f83d15e6514f65f4502b699b5fc4bde63a9aa6d4315d8478f74b94b485d19af755be

Download Submit
C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
Filesize
760.8MB

MD5
10b68a3529292bcea49c7149e12fa526

SHA1
3aef476ce74bac63071a02b40770a60128730792

SHA256
50c64aea0a5e56c95fa1e4f9369ccdda0ecfab89b75819a3216400c501f68a5d

SHA512
5ce617de22597ddb1103e74e30f69e5057d8cb724466885f4b48fd77ad03f83d15e6514f65f4502b699b5fc4bde63a9aa6d4315d8478f74b94b485d19af755be

Download Submit
memory/1972-134-0x0000000000000000-mapping.dmp

Download
memory/4292-132-0x0000000000B70000-0x0000000000F3F000-memory.dmp

Filesize
3.8MB

Download
memory/4292-133-0x0000000000B70000-0x0000000000F3F000-memory.dmp

Filesize
3.8MB

Download
memory/4292-135-0x0000000000B70000-0x0000000000F3F000-memory.dmp

Filesize
3.8MB

Download
memory/4892-139-0x0000000000CE0000-0x00000000010AF000-memory.dmp

Filesize
3.8MB

Download
memory/4892-138-0x0000000000CE0000-0x00000000010AF000-memory.dmp

Filesize
3.8MB

Download
memory/4892-140-0x0000000000CE0000-0x00000000010AF000-memory.dmp

Filesize
3.8MB

Download