500a341913184039fdefeb694b5f27949c9903bfd63ccbb8b2a8e168c6494efc

Analysis

max time kernel
148s
max time network
133s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
14-06-2023 19:31

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General

Target

500a341913184039fdefeb694b5f27949c9903bfd63ccbb8b2a8e168c6494efc.dll
Size

1.7MB
MD5

a61aa5b02af7ceb08d25f5f2c8071f73
SHA1

29d541f44d25ac1d467447e57595d31490fe7691
SHA256

500a341913184039fdefeb694b5f27949c9903bfd63ccbb8b2a8e168c6494efc
SHA512

d394899c6cb1f28987712a33bad4b1c50efb4089a1233790018995ddbf531246b3c87fe26a9f80f148a9e831e0e19ab6820f54789dcc79a2f12d70c768a09418
SSDEEP

49152:M7yYiFKAtm5I/KKAXIf+h/C/MrxjvTH7Bc:MwFKAYF/ht7H7Bc

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{9B657DAC-C805-4B7C-9C55-E4C43024CC27}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{59DB456E-FBDA-483B-BD3C-830DD9C1E3FC}.catalogItem	svchost.exe

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 2060 wrote to memory of 1804	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 1804	2060	rundll32.exe	rundll32.exe
PID 2060 wrote to memory of 1804	2060	rundll32.exe	rundll32.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\500a341913184039fdefeb694b5f27949c9903bfd63ccbb8b2a8e168c6494efc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2060

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\500a341913184039fdefeb694b5f27949c9903bfd63ccbb8b2a8e168c6494efc.dll,#1
2⤵
PID:1804

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:2684

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1804-133-0x00000000748B0000-0x0000000074C04000-memory.dmp

Filesize
3.3MB

Download
memory/1804-135-0x0000000002790000-0x0000000002791000-memory.dmp

Filesize
4KB

Download
memory/1804-136-0x00000000027C0000-0x00000000027C1000-memory.dmp

Filesize
4KB

Download
memory/1804-134-0x00000000025C0000-0x000000000260B000-memory.dmp

Filesize
300KB

Download
memory/1804-137-0x0000000002750000-0x0000000002751000-memory.dmp

Filesize
4KB

Download
memory/1804-139-0x0000000002770000-0x0000000002771000-memory.dmp

Filesize
4KB

Download
memory/1804-138-0x00000000027D0000-0x00000000027D1000-memory.dmp

Filesize
4KB

Download
memory/1804-140-0x00000000027A0000-0x00000000027A1000-memory.dmp

Filesize
4KB

Download
memory/1804-141-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/1804-142-0x0000000002CE0000-0x0000000002CE2000-memory.dmp

Filesize
8KB

Download
memory/1804-146-0x00000000025C0000-0x000000000260B000-memory.dmp

Filesize
300KB

Download