f96607784c9e01a30e339eea288d38b6171a1b87ae27c4c2f7925599b133a3bf

Analysis

max time kernel
147s
max time network
130s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2023 23:42

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General

Target

groot.exe
Size

8KB
MD5

fd398c7044a200b5c077864e786897d1
SHA1

bfdfb43098dd0e8a797c1eb3c90fff3ea2513306
SHA256

f96607784c9e01a30e339eea288d38b6171a1b87ae27c4c2f7925599b133a3bf
SHA512

5ab1c0d781bd3b0c6ce1a4d39fd32009818fc0771a479051f4d7d7d50405d75b50255fab3911a183f5abcb6023630c87fc83c79016d4f7575e5d67ec28f8d2a8
SSDEEP

96:b3vQYG57oPzLNg4vsO42Jah0lSlGzMfbAsx0HNC+kYn8K3m0kkIHCo9HwCSzNt:TvQ/or5g40OCmKyUbr4oKW9kIHT9HvU

Score

5^/10

Malware Config

Signatures

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{FB43F02D-67D6-4B40-B802-3349A1BDBF7E}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{7CC8C2D4-5C18-4382-93E0-54C7C5E90787}.catalogItem	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4704	1860	WerFault.exe	75

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

description	ioc	Process
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

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 AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1860	groot.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:\Users\Admin\AppData\Local\Temp\groot.exe
"C:\Users\Admin\AppData\Local\Temp\groot.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1860
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1860 -s 1004
  2⤵
  - Program crash
  PID:4704

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:4444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1860 -ip 1860
1⤵
PID:2832

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1860-133-0x0000000000070000-0x0000000000078000-memory.dmp

Filesize
32KB

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memory/1860-135-0x0000000004A20000-0x0000000004A30000-memory.dmp

Filesize
64KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads