01055e217335489d11bfba457b0ced01a06afe2270e4eec442347c93794df578

Analysis

max time kernel
30s
max time network
34s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
03/05/2023, 14:39

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General

Target

cveswindows.exe
Size

5.8MB
MD5

1daf1ae4b628a3a2dabacfe41a81b893
SHA1

ac8a194c36738db2d93d4a5f5f4bd32af9a83d6c
SHA256

01055e217335489d11bfba457b0ced01a06afe2270e4eec442347c93794df578
SHA512

78eb58ba78c52acb547a58123ef09be3cbe23d5bbd908eee227907739d8a95bfbeb5c139208db56e6224ba2e9006a18f2ed43167577666d07456c6c5ff93308b
SSDEEP

49152:wx9WSKBz35isrb/T+vO90d7HjmAFd4A64nsfJHHpXqpWh28XcqYG3gy60g/Qt3xe:9F35X0pjzugkMjuBOjEx

Score

4^/10

Malware Config

Signatures

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\ChromeUpdateTaskMachinCore\ChromeUpdateTaskMachinCore.exe	cveswindows.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

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

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

pid	Process
1872	schtasks.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
816	PING.EXE

Suspicious use of AdjustPrivilegeToken 40 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeSecurityPrivilege	1752	WMIC.exe
Token: SeTakeOwnershipPrivilege	1752	WMIC.exe
Token: SeLoadDriverPrivilege	1752	WMIC.exe
Token: SeSystemProfilePrivilege	1752	WMIC.exe
Token: SeSystemtimePrivilege	1752	WMIC.exe
Token: SeProfSingleProcessPrivilege	1752	WMIC.exe
Token: SeIncBasePriorityPrivilege	1752	WMIC.exe
Token: SeCreatePagefilePrivilege	1752	WMIC.exe
Token: SeBackupPrivilege	1752	WMIC.exe
Token: SeRestorePrivilege	1752	WMIC.exe
Token: SeShutdownPrivilege	1752	WMIC.exe
Token: SeDebugPrivilege	1752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1752	WMIC.exe
Token: SeRemoteShutdownPrivilege	1752	WMIC.exe
Token: SeUndockPrivilege	1752	WMIC.exe
Token: SeManageVolumePrivilege	1752	WMIC.exe
Token: 33	1752	WMIC.exe
Token: 34	1752	WMIC.exe
Token: 35	1752	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeSecurityPrivilege	1752	WMIC.exe
Token: SeTakeOwnershipPrivilege	1752	WMIC.exe
Token: SeLoadDriverPrivilege	1752	WMIC.exe
Token: SeSystemProfilePrivilege	1752	WMIC.exe
Token: SeSystemtimePrivilege	1752	WMIC.exe
Token: SeProfSingleProcessPrivilege	1752	WMIC.exe
Token: SeIncBasePriorityPrivilege	1752	WMIC.exe
Token: SeCreatePagefilePrivilege	1752	WMIC.exe
Token: SeBackupPrivilege	1752	WMIC.exe
Token: SeRestorePrivilege	1752	WMIC.exe
Token: SeShutdownPrivilege	1752	WMIC.exe
Token: SeDebugPrivilege	1752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1752	WMIC.exe
Token: SeRemoteShutdownPrivilege	1752	WMIC.exe
Token: SeUndockPrivilege	1752	WMIC.exe
Token: SeManageVolumePrivilege	1752	WMIC.exe
Token: 33	1752	WMIC.exe
Token: 34	1752	WMIC.exe
Token: 35	1752	WMIC.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 1752	1740	cveswindows.exe	28
PID 1740 wrote to memory of 1752	1740	cveswindows.exe	28
PID 1740 wrote to memory of 1752	1740	cveswindows.exe	28
PID 1740 wrote to memory of 1872	1740	cveswindows.exe	31
PID 1740 wrote to memory of 1872	1740	cveswindows.exe	31
PID 1740 wrote to memory of 1872	1740	cveswindows.exe	31
PID 1740 wrote to memory of 1508	1740	cveswindows.exe	33
PID 1740 wrote to memory of 1508	1740	cveswindows.exe	33
PID 1740 wrote to memory of 1508	1740	cveswindows.exe	33
PID 1508 wrote to memory of 816	1508	cmd.exe	35
PID 1508 wrote to memory of 816	1508	cmd.exe	35
PID 1508 wrote to memory of 816	1508	cmd.exe	35
PID 1508 wrote to memory of 1940	1508	cmd.exe	36
PID 1508 wrote to memory of 1940	1508	cmd.exe	36
PID 1508 wrote to memory of 1940	1508	cmd.exe	36

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\cveswindows.exe
"C:\Users\Admin\AppData\Local\Temp\cveswindows.exe"
1⤵
- Drops file in Program Files directory
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1740
- C:\Windows\System32\wbem\WMIC.exe
  C:\Windows\System32\wbem\WMIC.exe computersystem get model,manufacturer
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1752
- C:\Windows\system32\schtasks.exe
  C:\Windows\system32\schtasks.exe /CREATE /XML C:\Users\Admin\AppData\Local\Temp\RuEwPQCHNVrG /F /TN ChromeUpdateTaskMachinCore
  2⤵
  - Creates scheduled task(s)
  PID:1872
- C:\Windows\System32\cmd.exe
  C:\Windows\System32\cmd.exe /c ping 127.0.0.1 -n 2 & start /min "C:\Program Files\ChromeUpdateTaskMachinCore\ChromeUpdateTaskMachinCore.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1508
- - C:\Windows\system32\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:816
- - C:\Windows\system32\cmd.exe
    cmd.exe
    3⤵
    PID:1940

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\RuEwPQCHNVrG

Filesize
1KB

MD5
b3e592dbadf1ebc6205d986df5aa0b2a

SHA1
b8c1569fcbcd2c9dda695073e97f3c94cfcc43c9

SHA256
c05cf5ebf5b0ff0be1d8b0a73948241480aada6a0371262a6aa82cb606717098

SHA512
9745114e508079c3c1f2b343dcf4e9c9a3e796acc0cd8f75fe7e046cd9040c98d48282e1f100fed74828ebbe414d6e0b58bfc73cd9a5d11de8babde3bc8b94c5

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads