Malware Analysis Report

2024-09-11 13:18

Sample ID 240613-269tkaybql
Target 59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97
SHA256 59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97
Tags
evasion persistence trojan upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97

Threat Level: Known bad

The file 59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97 was found to be: Known bad.

Malicious Activity Summary

evasion persistence trojan upx

Windows security bypass

Drops file in Drivers directory

Modifies Installed Components in the registry

Sets file execution options in registry

Windows security modification

Executes dropped EXE

Loads dropped DLL

UPX packed file

Modifies WinLogon

Drops file in System32 directory

Drops file in Program Files directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Winlogon Helper DLL
T1547.004
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Winlogon Helper DLL
T1547.004
Defense Evasion
TA0005
Impair Defenses
T1562
Disable or Modify Tools
T1562.001
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-13 23:12

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 23:12

Reported

2024-06-13 23:15

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

100s

Command Line

winlogon.exe

Signatures

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\SysWOW64\rmass.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658} C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\IsInstalled = "1" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\StubPath = "C:\\Windows\\system32\\ahuy.exe" C:\Windows\SysWOW64\rmass.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ntdbg.exe" C:\Windows\SysWOW64\rmass.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe C:\Windows\SysWOW64\rmass.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A

UPX packed file

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

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} C:\Windows\SysWOW64\rmass.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\RECOVER32.DLL" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" C:\Windows\SysWOW64\rmass.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\rmass.exe C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
File opened for modification C:\Windows\SysWOW64\ahuy.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\RECOVER32.DLL C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\RECOVER32.DLL C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\winrnt.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\rmass.exe C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
File opened for modification C:\Windows\SysWOW64\ntdbg.exe C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\ntdbg.exe C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\ahuy.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\aset32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\idbg32.exe C:\Windows\SysWOW64\rmass.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\System\idbg32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\System\winrnt.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\System\aset32.exe C:\Windows\SysWOW64\rmass.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rmass.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 396 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 396 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 396 wrote to memory of 916 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 916 wrote to memory of 612 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\system32\winlogon.exe
PID 916 wrote to memory of 3212 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\Explorer.EXE
PID 916 wrote to memory of 2616 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe
PID 916 wrote to memory of 2616 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe
PID 916 wrote to memory of 2616 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe

"C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe"

C:\Windows\SysWOW64\rmass.exe

"C:\Windows\system32\rmass.exe"

C:\Windows\SysWOW64\rmass.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 scalkcz.cd udp
US 8.8.8.8:53 scalkcz.cd udp
NL 52.111.243.31:443 tcp

Files

memory/396-0-0x0000000000400000-0x0000000000411000-memory.dmp

C:\Windows\SysWOW64\rmass.exe

MD5 718935aa1a1852a4036a6e5e712a1740
SHA1 701153a5ea273b0ed39ed22ec697d770a6c20c9a
SHA256 59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97
SHA512 4cd8fe993dd98f91b6c1d417644952b3a8f421804ce163110615bb801b532ae454e52c4c010f1bab52687539c74e52efdec6a8f0ef678480288f31dfd251d75f

memory/916-12-0x0000000000400000-0x0000000000411000-memory.dmp

memory/396-6-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2616-18-0x0000000000400000-0x0000000000411000-memory.dmp

C:\Windows\SysWOW64\RECOVER32.DLL

MD5 2b2c28a7a01f9584fe220ef84003427f
SHA1 5fc023df0b5064045eb8de7f2dbe26f07f6fec70
SHA256 9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
SHA512 39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

C:\Windows\SysWOW64\ahuy.exe

MD5 303f06f876a740e42938de9b145f80a7
SHA1 cd34e38dc64b809f5ce45895ef8de9bd0efd220c
SHA256 ad02d9ba0d500b459ad101f10f70fac0c939a01aee970774ff7aae62c902a032
SHA512 4cec6b143ad9851216d171592b8adc78a8bddedd320c6bdea163af977c99d922fbf78bd733cb3b9f462d863d3a6d5803914a565f81e15c4f9f9f57af9590e42e

C:\Windows\SysWOW64\ntdbg.exe

MD5 a78f86b21615339a3f803fe163696d9d
SHA1 89657b442407200e083a135ae7f435488ee24af4
SHA256 d45bef4e144259a474104ae95ab5e634eed4bfef1a80c60902b1f4964c3993c1
SHA512 b9a32d9b51996c3f24d1e2bf5d328cc7bcf4c5c427f7cebae18633b5385d5696c343a1ca0b09d4610bc296bde8dd66c26ef1b2339493952d96754bb5524b2169

memory/916-52-0x0000000000400000-0x0000000000411000-memory.dmp

C:\Windows\System32\drivers\etc\hosts

MD5 6f47b62de25d1745e296a06b3f98ed19
SHA1 a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f
SHA256 15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4
SHA512 dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 23:12

Reported

2024-06-13 23:15

Platform

win7-20240508-en

Max time kernel

149s

Max time network

121s

Command Line

winlogon.exe

Signatures

Windows security bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A

Drops file in Drivers directory

Description Indicator Process Target
File opened for modification C:\Windows\system32\drivers\etc\hosts C:\Windows\SysWOW64\rmass.exe N/A

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50554D41-5254-4e52-5055-4D4152544e52}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50554D41-5254-4e52-5055-4D4152544e52}\IsInstalled = "1" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50554D41-5254-4e52-5055-4D4152544e52}\StubPath = "C:\\Windows\\system32\\ahuy.exe" C:\Windows\SysWOW64\rmass.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{50554D41-5254-4e52-5055-4D4152544e52} C:\Windows\SysWOW64\rmass.exe N/A

Sets file execution options in registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ntdbg.exe" C:\Windows\SysWOW64\rmass.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A

UPX packed file

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

Windows security modification

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "5120" C:\Windows\SysWOW64\rmass.exe N/A

Modifies WinLogon

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\RECOVER32.DLL" C:\Windows\SysWOW64\rmass.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" C:\Windows\SysWOW64\rmass.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} C:\Windows\SysWOW64\rmass.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify C:\Windows\SysWOW64\rmass.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\RECOVER32.DLL C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\rmass.exe C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
File created C:\Windows\SysWOW64\rmass.exe C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
File opened for modification C:\Windows\SysWOW64\ntdbg.exe C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\ntdbg.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\ahuy.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\RECOVER32.DLL C:\Windows\SysWOW64\rmass.exe N/A
File created C:\Windows\SysWOW64\ahuy.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\winrnt.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\aset32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\idbg32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\System\aset32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\System\idbg32.exe C:\Windows\SysWOW64\rmass.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\System\winrnt.exe C:\Windows\SysWOW64\rmass.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A
N/A N/A C:\Windows\SysWOW64\rmass.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\rmass.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1996 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 1996 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 1996 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 1996 wrote to memory of 2080 N/A C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe C:\Windows\SysWOW64\rmass.exe
PID 2080 wrote to memory of 432 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\system32\winlogon.exe
PID 2080 wrote to memory of 1148 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\Explorer.EXE
PID 2080 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe
PID 2080 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe
PID 2080 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe
PID 2080 wrote to memory of 2340 N/A C:\Windows\SysWOW64\rmass.exe C:\Windows\SysWOW64\rmass.exe

Processes

C:\Windows\system32\winlogon.exe

winlogon.exe

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe

"C:\Users\Admin\AppData\Local\Temp\59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97.exe"

C:\Windows\SysWOW64\rmass.exe

"C:\Windows\system32\rmass.exe"

C:\Windows\SysWOW64\rmass.exe

--k33p

Network

Country Destination Domain Proto
US 8.8.8.8:53 wfkpesu.vg udp
US 8.8.8.8:53 wfkpesu.vg udp

Files

memory/1996-0-0x0000000000400000-0x0000000000411000-memory.dmp

memory/1996-5-0x0000000000320000-0x0000000000331000-memory.dmp

\Windows\SysWOW64\rmass.exe

MD5 718935aa1a1852a4036a6e5e712a1740
SHA1 701153a5ea273b0ed39ed22ec697d770a6c20c9a
SHA256 59b7c3a6c5b6541b34b127a5d894d458216f12d8bc9f40fc35a38c40e7706e97
SHA512 4cd8fe993dd98f91b6c1d417644952b3a8f421804ce163110615bb801b532ae454e52c4c010f1bab52687539c74e52efdec6a8f0ef678480288f31dfd251d75f

memory/1996-13-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2080-14-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2080-25-0x0000000000380000-0x0000000000391000-memory.dmp

memory/2340-27-0x0000000000400000-0x0000000000411000-memory.dmp

C:\Windows\SysWOW64\RECOVER32.DLL

MD5 2b2c28a7a01f9584fe220ef84003427f
SHA1 5fc023df0b5064045eb8de7f2dbe26f07f6fec70
SHA256 9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb
SHA512 39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

C:\Windows\SysWOW64\ntdbg.exe

MD5 c60ed29190c71e9b3ba1089dd423b21c
SHA1 f498e54953d944bd1c6c566812e50737cad54195
SHA256 fc7785e89fbddf3ef3857d630b2f64377dd83c60d350f144f4414bff072ed8c5
SHA512 5b1ff65caf4ec447947373011dce2d9bb880984fc07314fa437ba085b5ef83457480069166b4e2dd0a86dbe846f756b22bdf455bb07eea0085dc64228705a84a

C:\Windows\SysWOW64\ahuy.exe

MD5 a19b8603c2a41316e97ac7e98539bfe4
SHA1 f31532a432cfb6efd26e7f87e2f0686c080a1eb5
SHA256 137060b20d4984e89643e065e8c541ceb00d3247e12b6371650fbeacc2cefa32
SHA512 3314960407306ea5a8aef8e751316a1311e554cb1958c1826f0bcf4a6dd93c2ae72585baad2d9fa90f91d2be45eb65b8c4c2d942864f9011e32da36c1293a0c3

memory/2080-61-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2340-62-0x0000000000400000-0x0000000000411000-memory.dmp

memory/2080-92-0x0000000000380000-0x0000000000391000-memory.dmp

C:\Windows\System32\drivers\etc\hosts

MD5 b10b13206b0f2cf3968050072f6979bf
SHA1 699db21ba9cecf3f13ac3d76e22cfa41aa94da80
SHA256 0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4
SHA512 d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d