Malware Analysis Report

2024-08-06 11:04

Sample ID 231222-cqb5xshff2
Target 金山办公WPS业务系统异常报错信息报告-20231221.exe
SHA256 eb30df6f816f94e5d551bfdeb5f54b03b93ff45ff62ff91f602b595008ff8138
Tags
cobaltstrike 100000000 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

eb30df6f816f94e5d551bfdeb5f54b03b93ff45ff62ff91f602b595008ff8138

Threat Level: Known bad

The file 金山办公WPS业务系统异常报错信息报告-20231221.exe was found to be: Known bad.

Malicious Activity Summary

cobaltstrike 100000000 backdoor trojan

Cobaltstrike

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
Peripheral Device Discovery
T1120
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2023-12-22 02:16

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-22 02:16

Reported

2023-12-22 02:20

Platform

win7-20231215-it

Max time kernel

104s

Max time network

172s

Command Line

"C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Processes

C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe

"C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 365.wps.cn udp
CN 119.3.190.20:443 365.wps.cn tcp
CN 101.206.202.121:443 tcp
N/A 127.0.0.1:60001 tcp
CN 119.3.191.240:443 365.wps.cn tcp
CN 101.206.202.171:443 tcp
US 8.8.8.8:53 down.360safe.com udp
US 104.192.108.21:443 down.360safe.com tcp
US 8.8.8.8:53 vip.wps.cn udp
CN 119.3.210.249:443 vip.wps.cn tcp
CN 101.206.201.217:443 tcp
CN 139.9.135.197:443 vip.wps.cn tcp
CN 1.71.156.254:443 tcp
US 8.8.8.8:53 update.360safe.com udp
CN 101.199.97.243:443 update.360safe.com tcp

Files

memory/2624-1-0x0000000028890000-0x00000000288D1000-memory.dmp

memory/2624-0-0x00000000288E0000-0x000000002892F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-22 02:16

Reported

2023-12-22 02:20

Platform

win10v2004-20231215-it

Max time kernel

139s

Max time network

164s

Command Line

"C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe"

Signatures

Cobaltstrike

trojan backdoor cobaltstrike

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 C:\Windows\system32\taskmgr.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A C:\Windows\system32\taskmgr.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName C:\Windows\system32\taskmgr.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeCreateGlobalPrivilege N/A C:\Windows\system32\taskmgr.exe N/A
Token: 33 N/A C:\Windows\system32\taskmgr.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A

Suspicious use of SendNotifyMessage

Description Indicator Process Target
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A
N/A N/A C:\Windows\system32\taskmgr.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe

"C:\Users\Admin\AppData\Local\Temp\金山办公WPS业务系统异常报错信息报告-20231221.exe"

C:\Windows\system32\taskmgr.exe

"C:\Windows\system32\taskmgr.exe" /4

Network

Country Destination Domain Proto
US 8.8.8.8:53 down.360safe.com udp
US 104.192.108.20:443 down.360safe.com tcp
US 8.8.8.8:53 20.108.192.104.in-addr.arpa udp
US 8.8.8.8:53 updatem.360safe.com udp
US 104.192.108.20:443 updatem.360safe.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 21.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
N/A 127.0.0.1:60001 tcp
CN 1.56.96.120:443 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 update.360safe.com udp
CN 101.199.97.243:443 update.360safe.com tcp
CN 171.8.167.71:443 update.360safe.com tcp
CN 101.206.202.180:443 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
CN 180.163.242.64:443 update.360safe.com tcp
CN 101.206.201.231:443 tcp
US 8.8.8.8:53 365.wps.cn udp
CN 119.3.190.20:443 365.wps.cn tcp
CN 101.206.201.249:443 tcp
CN 119.3.191.240:443 365.wps.cn tcp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp
CN 101.206.201.231:443 tcp

Files

memory/3948-0-0x000002DB5D750000-0x000002DB5D79F000-memory.dmp

memory/3948-1-0x000002DB5D700000-0x000002DB5D741000-memory.dmp

memory/3948-2-0x000002DB5D700000-0x000002DB5D741000-memory.dmp

memory/1680-3-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-4-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-5-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-9-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-10-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-12-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-11-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-14-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-13-0x0000025C21A50000-0x0000025C21A51000-memory.dmp

memory/1680-15-0x0000025C21A50000-0x0000025C21A51000-memory.dmp