xworm | d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae

General

Target

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe
Size

1.0MB
MD5

a17247378506d83bb0d37b5c1a0f654d
SHA1

5a5e0a251935ab8d9a33dee4ae96e094f18e9c0d
SHA256

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae
SHA512

21977587adee27694299d8ded2cb6e4945ef0b768186bcd6c67ebc749b9255bdf34e786c4dd4369029c4692ca085e029ed7d62439acc4b5c501fd372b2f9c275
SSDEEP

24576:42kQjNXFD9wX+3zH6s5K4Z3L+M8ucAv23vUPqPmP:XOOmM3L+Ruc9CP

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/1612-18-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1612-16-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1612-14-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1612-11-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/1612-12-0x0000000000400000-0x000000000040E000-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:

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.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

1988 powershell.exe

pid	process
1988	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

description	pid	process	target process
PID 2240 set thread context of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.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

1988 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeregasm.exe

description pid process

Token: SeDebugPrivilege 1988 powershell.exe
Token: SeDebugPrivilege 1612 regasm.exe

pid	process
1988	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1988	powershell.exe
Token: SeDebugPrivilege	1612	regasm.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

description	pid	process	target process
PID 2240 wrote to memory of 1988	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	powershell.exe
PID 2240 wrote to memory of 1988	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	powershell.exe
PID 2240 wrote to memory of 1988	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	powershell.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1612	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	regasm.exe
PID 2240 wrote to memory of 1972	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	WerFault.exe
PID 2240 wrote to memory of 1972	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	WerFault.exe
PID 2240 wrote to memory of 1972	2240	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe	WerFault.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe

C:\Users\Admin\AppData\Local\Temp\d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe
"C:\Users\Admin\AppData\Local\Temp\d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2240

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\d3cb334461ab9872b165ee1a3b316deb41b457ca227b491036f9ee49274996ae.exe" -Force
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1988

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:1612

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2240 -s 604
2⤵
PID:1972

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/1612-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-16-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-14-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-12-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-18-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1612-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1612-11-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1988-24-0x0000000002010000-0x0000000002018000-memory.dmp

Filesize
32KB

Download
memory/1988-23-0x000000001B2B0000-0x000000001B592000-memory.dmp

Filesize
2.9MB

Download
memory/2240-5-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2240-26-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2240-0-0x000007FEF64E3000-0x000007FEF64E4000-memory.dmp

Filesize
4KB

Download
memory/2240-2-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2240-6-0x000000001A670000-0x000000001A6D0000-memory.dmp

Filesize
384KB

Download
memory/2240-1-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/2240-4-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download
memory/2240-25-0x000007FEF64E3000-0x000007FEF64E4000-memory.dmp

Filesize
4KB

Download
memory/2240-3-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads