klingon | c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349

Analysis

max time kernel
149s
max time network
190s
platform
windows7_x64
resource
win7v20210410
submitted
18-06-2021 07:27

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General

Target

c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe
Size

3.1MB
MD5

14471a353788bb6cdb6071d0e0a83004
SHA1

c90b5c534ce0d622547bc5b96075eb3d4212d660
SHA256

c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349
SHA512

57d2cc72d41fdcd2363b9dd56fedf75b99512c9aa50386c1595ae59aad70b8d19e264fe82224b446f5b1bbe9b470dc349582782ad061be34d47abd42016c37e8

Score

10^/10

klingon persistence trojan upx

Malware Config

Signatures

Klingon
Klingon is a remote access trojan written in Golang with various capabilities.
trojan klingon

Executes dropped EXE 1 IoCs

pid	Process
2044	updater10.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/files/0x00040000000130db-61.dat	upx
behavioral1/files/0x00040000000130db-62.dat	upx
behavioral1/files/0x00040000000130db-63.dat	upx
behavioral1/files/0x00040000000130db-65.dat	upx

Deletes itself 1 IoCs

pid	Process
2044	updater10.exe

Loads dropped DLL 2 IoCs

pid	Process
2028	cmd.exe
2028	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Updater = "\"C:\\Users\\Admin\\AppData\\Local\\Windows Update\\updater10.exe\" -0 -0"	updater10.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Updater = "\"C:\\Users\\Admin\\AppData\\Local\\Windows Update\\updater10.exe\" -0 -0"	updater10.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
2	api.ipify.org
3	api.ipify.org

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	776	wmic.exe
Token: SeSecurityPrivilege	776	wmic.exe
Token: SeTakeOwnershipPrivilege	776	wmic.exe
Token: SeLoadDriverPrivilege	776	wmic.exe
Token: SeSystemProfilePrivilege	776	wmic.exe
Token: SeSystemtimePrivilege	776	wmic.exe
Token: SeProfSingleProcessPrivilege	776	wmic.exe
Token: SeIncBasePriorityPrivilege	776	wmic.exe
Token: SeCreatePagefilePrivilege	776	wmic.exe
Token: SeBackupPrivilege	776	wmic.exe
Token: SeRestorePrivilege	776	wmic.exe
Token: SeShutdownPrivilege	776	wmic.exe
Token: SeDebugPrivilege	776	wmic.exe
Token: SeSystemEnvironmentPrivilege	776	wmic.exe
Token: SeRemoteShutdownPrivilege	776	wmic.exe
Token: SeUndockPrivilege	776	wmic.exe
Token: SeManageVolumePrivilege	776	wmic.exe
Token: 33	776	wmic.exe
Token: 34	776	wmic.exe
Token: 35	776	wmic.exe
Token: SeIncreaseQuotaPrivilege	776	wmic.exe
Token: SeSecurityPrivilege	776	wmic.exe
Token: SeTakeOwnershipPrivilege	776	wmic.exe
Token: SeLoadDriverPrivilege	776	wmic.exe
Token: SeSystemProfilePrivilege	776	wmic.exe
Token: SeSystemtimePrivilege	776	wmic.exe
Token: SeProfSingleProcessPrivilege	776	wmic.exe
Token: SeIncBasePriorityPrivilege	776	wmic.exe
Token: SeCreatePagefilePrivilege	776	wmic.exe
Token: SeBackupPrivilege	776	wmic.exe
Token: SeRestorePrivilege	776	wmic.exe
Token: SeShutdownPrivilege	776	wmic.exe
Token: SeDebugPrivilege	776	wmic.exe
Token: SeSystemEnvironmentPrivilege	776	wmic.exe
Token: SeRemoteShutdownPrivilege	776	wmic.exe
Token: SeUndockPrivilege	776	wmic.exe
Token: SeManageVolumePrivilege	776	wmic.exe
Token: 33	776	wmic.exe
Token: 34	776	wmic.exe
Token: 35	776	wmic.exe
Token: SeIncreaseQuotaPrivilege	2040	WMIC.exe
Token: SeSecurityPrivilege	2040	WMIC.exe
Token: SeTakeOwnershipPrivilege	2040	WMIC.exe
Token: SeLoadDriverPrivilege	2040	WMIC.exe
Token: SeSystemProfilePrivilege	2040	WMIC.exe
Token: SeSystemtimePrivilege	2040	WMIC.exe
Token: SeProfSingleProcessPrivilege	2040	WMIC.exe
Token: SeIncBasePriorityPrivilege	2040	WMIC.exe
Token: SeCreatePagefilePrivilege	2040	WMIC.exe
Token: SeBackupPrivilege	2040	WMIC.exe
Token: SeRestorePrivilege	2040	WMIC.exe
Token: SeShutdownPrivilege	2040	WMIC.exe
Token: SeDebugPrivilege	2040	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2040	WMIC.exe
Token: SeRemoteShutdownPrivilege	2040	WMIC.exe
Token: SeUndockPrivilege	2040	WMIC.exe
Token: SeManageVolumePrivilege	2040	WMIC.exe
Token: 33	2040	WMIC.exe
Token: 34	2040	WMIC.exe
Token: 35	2040	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2040	WMIC.exe
Token: SeSecurityPrivilege	2040	WMIC.exe
Token: SeTakeOwnershipPrivilege	2040	WMIC.exe
Token: SeLoadDriverPrivilege	2040	WMIC.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 2028	1164	c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe	26
PID 1164 wrote to memory of 2028	1164	c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe	26
PID 1164 wrote to memory of 2028	1164	c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe	26
PID 2028 wrote to memory of 2044	2028	cmd.exe	28
PID 2028 wrote to memory of 2044	2028	cmd.exe	28
PID 2028 wrote to memory of 2044	2028	cmd.exe	28
PID 2044 wrote to memory of 776	2044	updater10.exe	32
PID 2044 wrote to memory of 776	2044	updater10.exe	32
PID 2044 wrote to memory of 776	2044	updater10.exe	32
PID 2044 wrote to memory of 1764	2044	updater10.exe	35
PID 2044 wrote to memory of 1764	2044	updater10.exe	35
PID 2044 wrote to memory of 1764	2044	updater10.exe	35
PID 2044 wrote to memory of 1592	2044	updater10.exe	37
PID 2044 wrote to memory of 1592	2044	updater10.exe	37
PID 2044 wrote to memory of 1592	2044	updater10.exe	37
PID 1592 wrote to memory of 2040	1592	cmd.exe	39
PID 1592 wrote to memory of 2040	1592	cmd.exe	39
PID 1592 wrote to memory of 2040	1592	cmd.exe	39
PID 2044 wrote to memory of 988	2044	updater10.exe	40
PID 2044 wrote to memory of 988	2044	updater10.exe	40
PID 2044 wrote to memory of 988	2044	updater10.exe	40
PID 988 wrote to memory of 1424	988	cmd.exe	42
PID 988 wrote to memory of 1424	988	cmd.exe	42
PID 988 wrote to memory of 1424	988	cmd.exe	42
PID 2044 wrote to memory of 1536	2044	updater10.exe	43
PID 2044 wrote to memory of 1536	2044	updater10.exe	43
PID 2044 wrote to memory of 1536	2044	updater10.exe	43
PID 1536 wrote to memory of 948	1536	cmd.exe	45
PID 1536 wrote to memory of 948	1536	cmd.exe	45
PID 1536 wrote to memory of 948	1536	cmd.exe	45
PID 2044 wrote to memory of 272	2044	updater10.exe	46
PID 2044 wrote to memory of 272	2044	updater10.exe	46
PID 2044 wrote to memory of 272	2044	updater10.exe	46
PID 2044 wrote to memory of 1984	2044	updater10.exe	48
PID 2044 wrote to memory of 1984	2044	updater10.exe	48
PID 2044 wrote to memory of 1984	2044	updater10.exe	48
PID 1984 wrote to memory of 1316	1984	cmd.exe	50
PID 1984 wrote to memory of 1316	1984	cmd.exe	50
PID 1984 wrote to memory of 1316	1984	cmd.exe	50

C:\Users\Admin\AppData\Local\Temp\c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe
"C:\Users\Admin\AppData\Local\Temp\c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Windows\system32\cmd.exe
  cmd /C start "C:\Users\Admin\AppData\Local\Windows Update\updater10.exe" "C:\Users\Admin\AppData\Local\Windows Update\updater10.exe" \"-0\" \"-0\" \"-C:\Users\Admin\AppData\Local\Temp\c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe\"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2028
- - C:\Users\Admin\AppData\Local\Windows Update\updater10.exe
    "C:\Users\Admin\AppData\Local\Windows Update\updater10.exe" \"-0\" \"-0\" \"-C:\Users\Admin\AppData\Local\Temp\c66544e5f49feda32c75e9f796681499bda314866e6ae1e11398be9b4bc89349.exe\"
    3⤵
    - Executes dropped EXE
    - Deletes itself
    - Adds Run key to start application
    - Suspicious use of WriteProcessMemory
    PID:2044
  - - C:\Windows\System32\Wbem\wmic.exe
      wmic process get Caption,ParentProcessId,ProcessId
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:776
  - - C:\Windows\System32\cmd.exe
      C:\Windows\System32\cmd.exe ver
      4⤵
      PID:1764
  - - C:\Windows\system32\cmd.exe
      cmd /C "wmic /namespace:'\\root\subscription' PATH __EventFilter CREATE Name='GuacBypassFilter', EventNameSpace='root\cimv2', QueryLanguage='WQL', Query='SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System''"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1592
    - - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /namespace:'\\root\subscription' PATH __EventFilter CREATE Name='GuacBypassFilter', EventNameSpace='root\cimv2', QueryLanguage='WQL', Query='SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System''
        5⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2040
  - - C:\Windows\system32\cmd.exe
      cmd /C "wmic /namespace:'\\root\subscription' PATH CommandLineEventConsumer CREATE Name='GuacBypassConsumer', ExecutablePath='\"C:\Users\Admin\AppData\Local\Windows Update\updater10.exe\" -0 -0', CommandLineTemplate='\"C:\Users\Admin\AppData\Local\Windows Update\updater10.exe\" -0 -0'"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:988
    - - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /namespace:'\\root\subscription' PATH CommandLineEventConsumer CREATE Name='GuacBypassConsumer', ExecutablePath='\"C:\Users\Admin\AppData\Local\Windows Update\updater10.exe\" -0 -0', CommandLineTemplate='\"C:\Users\Admin\AppData\Local\Windows Update\updater10.exe\" -0 -0'
        5⤵
        
        PID:1424
  - - C:\Windows\system32\cmd.exe
      cmd /C "wmic /namespace:'\\root\subscription' PATH __FilterToConsumerBinding CREATE Filter='__EventFilter.Name='GuacBypassFilter'', Consumer='CommandLineEventConsumer.Name='GuacBypassConsomer'')"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1536
    - - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /namespace:'\\root\subscription' PATH __FilterToConsumerBinding CREATE Filter='__EventFilter.Name='GuacBypassFilter'', Consumer='CommandLineEventConsumer.Name='GuacBypassConsomer'')
        5⤵
        
        PID:948
  - - C:\Windows\System32\Wbem\wmic.exe
      wmic process get Caption,ParentProcessId,ProcessId
      4⤵
      PID:272
  - - C:\Windows\system32\cmd.exe
      cmd /C "wmic /namespace:'\\root\subscription' PATH __EventFilter CREATE Name='GuacBypassFilter', EventNameSpace='root\cimv2', QueryLanguage='WQL', Query='SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System''"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1984
    - - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic /namespace:'\\root\subscription' PATH __EventFilter CREATE Name='GuacBypassFilter', EventNameSpace='root\cimv2', QueryLanguage='WQL', Query='SELECT * FROM __InstanceModificationEvent WITHIN 60 WHERE TargetInstance ISA 'Win32_PerfFormattedData_PerfOS_System''
        5⤵
        
        PID:1316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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