xworm | e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577

General

Target

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe
Size

1.1MB
MD5

5394d35793386641283a5bb8eae359c2
SHA1

78a477bc165707e1f3d6b2ce2b70aa73ffbafa23
SHA256

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577
SHA512

28dda180125dd48cfac34d37e5601a5fe47ac38f2d677fd15388602fb0526f402dbf5052327b9f2700d9ecf18e95003519accfd471abae6d780edf8188bb7764
SSDEEP

24576:dkNGq8rz/q6tsP05X+ef1XeMiQA+NLVtk2Otk:YGpz5X+e9TNE2O+

Score

10^/10

xworm evasion execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

79.110.49.133:5700

Mutex

Bg9JRZDpyEfXxrAy

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2496-23-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2496-21-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2496-26-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2496-30-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2496-28-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2656 powershell.exe

pid	process
2656	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	pid	process	target process
PID 1760 set thread context of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2656 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeregasm.exe

description pid process

Token: SeDebugPrivilege 2656 powershell.exe
Token: SeDebugPrivilege 2496 regasm.exe

pid	process
2656	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	2496	regasm.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	pid	process	target process
PID 1760 wrote to memory of 2656	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1760 wrote to memory of 2656	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1760 wrote to memory of 2656	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1760 wrote to memory of 2660	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	msbuild.exe
PID 1760 wrote to memory of 2660	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	msbuild.exe
PID 1760 wrote to memory of 2660	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	msbuild.exe
PID 1760 wrote to memory of 2660	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	msbuild.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2496	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	regasm.exe
PID 1760 wrote to memory of 2464	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	WerFault.exe
PID 1760 wrote to memory of 2464	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	WerFault.exe
PID 1760 wrote to memory of 2464	1760	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	WerFault.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

C:\Users\Admin\AppData\Local\Temp\e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe
"C:\Users\Admin\AppData\Local\Temp\e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1760

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe" -Force
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2656

C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
2⤵
PID:2660

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2496

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1760 -s 852
2⤵
PID:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1760-33-0x000007FEF5B33000-0x000007FEF5B34000-memory.dmp

Filesize
4KB

Download
memory/1760-4-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/1760-2-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/1760-3-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/1760-34-0x000007FEF5B30000-0x000007FEF651C000-memory.dmp

Filesize
9.9MB

Download
memory/1760-5-0x0000000001EC0000-0x0000000001F22000-memory.dmp

Filesize
392KB

Download
memory/1760-1-0x0000000000250000-0x000000000025C000-memory.dmp

Filesize
48KB

Download
memory/1760-0-0x000007FEF5B33000-0x000007FEF5B34000-memory.dmp

Filesize
4KB

Download
memory/2496-21-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-28-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-30-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-26-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-17-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-23-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2496-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-10-0x000007FEEE61E000-0x000007FEEE61F000-memory.dmp

Filesize
4KB

Download
memory/2656-16-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-15-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-13-0x00000000027E0000-0x00000000027E8000-memory.dmp

Filesize
32KB

Download
memory/2656-14-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-31-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-32-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-12-0x000007FEEE360000-0x000007FEEECFD000-memory.dmp

Filesize
9.6MB

Download
memory/2656-11-0x000000001B820000-0x000000001BB02000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads