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/2684-19-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2684-22-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2684-20-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2684-26-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2684-24-0x0000000000400000-0x000000000040E000-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

Detects Windows executables referencing non-Windows User-Agents 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2684-19-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2684-22-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2684-20-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2684-26-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral1/memory/2684-24-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects executables packed with or use KoiVM 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1640-6-0x0000000001FB0000-0x0000000002012000-memory.dmp	INDICATOR_EXE_Packed_KoiVM

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

2508 powershell.exe

pid	process
2508	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 1640 set thread context of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.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

2508 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeCasPol.exe

description pid process

Token: SeDebugPrivilege 2508 powershell.exe
Token: SeDebugPrivilege 2684 CasPol.exe

pid	process
2508	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2508	powershell.exe
Token: SeDebugPrivilege	2684	CasPol.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe

description	pid	process	target process
PID 1640 wrote to memory of 2508	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1640 wrote to memory of 2508	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1640 wrote to memory of 2508	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	powershell.exe
PID 1640 wrote to memory of 2616	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	jsc.exe
PID 1640 wrote to memory of 2616	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	jsc.exe
PID 1640 wrote to memory of 2616	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	jsc.exe
PID 1640 wrote to memory of 2616	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	jsc.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2396	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	installutil.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2684	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	CasPol.exe
PID 1640 wrote to memory of 2408	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	WerFault.exe
PID 1640 wrote to memory of 2408	1640	e01f8eba926374edca52502c8fb760cc1ac5fb70bd94c57123b05060fef13577.exe	WerFault.exe
PID 1640 wrote to memory of 2408	1640	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:1640

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:2508

C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
2⤵
PID:2616

C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"
2⤵
PID:2396

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1640 -s 784
2⤵
PID:2408

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/1640-0-0x000007FEF5A13000-0x000007FEF5A14000-memory.dmp

Filesize
4KB

Download
memory/1640-1-0x00000000001C0000-0x00000000001CC000-memory.dmp

Filesize
48KB

Download
memory/1640-2-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

Filesize
9.9MB

Download
memory/1640-3-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

Filesize
9.9MB

Download
memory/1640-4-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

Filesize
9.9MB

Download
memory/1640-5-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

Filesize
9.9MB

Download
memory/1640-6-0x0000000001FB0000-0x0000000002012000-memory.dmp

Filesize
392KB

Download
memory/1640-28-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp

Filesize
9.9MB

Download
memory/1640-27-0x000007FEF5A13000-0x000007FEF5A14000-memory.dmp

Filesize
4KB

Download
memory/2508-14-0x0000000002C94000-0x0000000002C97000-memory.dmp

Filesize
12KB

Download
memory/2508-16-0x000007FEEEB90000-0x000007FEEF52D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-15-0x0000000002C9B000-0x0000000002D02000-memory.dmp

Filesize
412KB

Download
memory/2508-13-0x0000000001F00000-0x0000000001F08000-memory.dmp

Filesize
32KB

Download
memory/2508-29-0x000007FEEEB90000-0x000007FEEF52D000-memory.dmp

Filesize
9.6MB

Download
memory/2508-11-0x000007FEEEE4E000-0x000007FEEEE4F000-memory.dmp

Filesize
4KB

Download
memory/2508-12-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2684-20-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-18-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-17-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-26-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-24-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-22-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2684-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads