xworm | 13b88cf71c1d44d7f7c66cadf6f5fe39d99252a44e25ec1f2ffc850f39d7c864

General

Target

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
Size

833KB
MD5

a849578e8bd54ed3528453a03dcd8760
SHA1

fc3ea5f444fe938916b5be4cf50153950e793c12
SHA256

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25
SHA512

846f8b31be8499ac17e42e9716bb6fa5b31003563f694c445ea55148855e0c0bc622b7c45049bd6b45b60d041a2ca2ef4f1dcbac0df829bc4684fdab208508b4
SSDEEP

12288:R4YIM64tl6UqjSds3Yfg8TgDJavO3LnXnvAQWWftmUsFVAZL/xtjk65ek2w5KM/:RkYnsd1dMyF/xtj75T2a

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

103.187.4.59:62400

Mutex

4hR1Z1dxAKjfBlJg

Attributes

install_file
USB.exe

aes.plain

Signatures

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Drops startup file 2 IoCs

Processes:

AddInProcess32.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AddInProcess32.exe	AddInProcess32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AddInProcess32.exe	AddInProcess32.exe

Executes dropped EXE 2 IoCs

Processes:

AddInProcess32.exeAddInProcess32.exe

pid process

804 AddInProcess32.exe
548 AddInProcess32.exe

pid	process
804	AddInProcess32.exe
548	AddInProcess32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

AddInProcess32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2647223082-2067913677-935928954-1000\Software\Microsoft\Windows\CurrentVersion\Run\AddInProcess32 = "C:\\Users\\Admin\\AppData\\Roaming\\AddInProcess32.exe"	AddInProcess32.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

description	pid	process	target process
PID 1424 set thread context of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1472 schtasks.exe

pid	process
1472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

pid	process
1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

description pid process

Token: SeDebugPrivilege 1424 c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

description	pid	process
Token: SeDebugPrivilege	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exeAddInProcess32.exetaskeng.exe

description	pid	process	target process
PID 1424 wrote to memory of 1940	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ServiceModelReg.exe
PID 1424 wrote to memory of 1940	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ServiceModelReg.exe
PID 1424 wrote to memory of 1940	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ServiceModelReg.exe
PID 1424 wrote to memory of 840	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ilasm.exe
PID 1424 wrote to memory of 840	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ilasm.exe
PID 1424 wrote to memory of 840	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ilasm.exe
PID 1424 wrote to memory of 2032	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ngen.exe
PID 1424 wrote to memory of 2032	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ngen.exe
PID 1424 wrote to memory of 2032	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	ngen.exe
PID 1424 wrote to memory of 1324	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	aspnet_wp.exe
PID 1424 wrote to memory of 1324	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	aspnet_wp.exe
PID 1424 wrote to memory of 1324	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	aspnet_wp.exe
PID 1424 wrote to memory of 1140	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	MSBuild.exe
PID 1424 wrote to memory of 1140	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	MSBuild.exe
PID 1424 wrote to memory of 1140	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	MSBuild.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1424 wrote to memory of 1340	1424	c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe	AddInProcess32.exe
PID 1340 wrote to memory of 1472	1340	AddInProcess32.exe	schtasks.exe
PID 1340 wrote to memory of 1472	1340	AddInProcess32.exe	schtasks.exe
PID 1340 wrote to memory of 1472	1340	AddInProcess32.exe	schtasks.exe
PID 1340 wrote to memory of 1472	1340	AddInProcess32.exe	schtasks.exe
PID 1744 wrote to memory of 804	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 804	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 804	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 804	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 548	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 548	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 548	1744	taskeng.exe	AddInProcess32.exe
PID 1744 wrote to memory of 548	1744	taskeng.exe	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe
"C:\Users\Admin\AppData\Local\Temp\c6af80e6ed0b9f93b7e14e956dac74d7affe71097f9ab14786e8fdd0469f4d25.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1424

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ServiceModelReg.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ServiceModelReg.exe"
2⤵
PID:1940

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ilasm.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ilasm.exe"
2⤵
PID:840

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe"
2⤵
PID:2032

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"
2⤵
PID:1324

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe"
2⤵
PID:1140

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe
"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe"
2⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1340

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 1 /tn "AddInProcess32" /tr "C:\Users\Admin\AppData\Roaming\AddInProcess32.exe"
3⤵
- Creates scheduled task(s)
PID:1472

C:\Windows\system32\taskeng.exe
taskeng.exe {B7EABFC0-F2FF-4927-A8B6-49A8BAE3D903} S-1-5-21-2647223082-2067913677-935928954-1000:BPOQNXYB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1744

C:\Users\Admin\AppData\Roaming\AddInProcess32.exe
C:\Users\Admin\AppData\Roaming\AddInProcess32.exe
2⤵
- Executes dropped EXE
PID:804

C:\Users\Admin\AppData\Roaming\AddInProcess32.exe
C:\Users\Admin\AppData\Roaming\AddInProcess32.exe
2⤵
- Executes dropped EXE
PID:548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Roaming\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
C:\Users\Admin\AppData\Roaming\AddInProcess32.exe

Filesize
41KB

MD5
6a673bfc3b67ae9782cb31af2f234c68

SHA1
7544e89566d91e84e3cd437b9a073e5f6b56566e

SHA256
978a4093058aa2ebf05dc353897d90d950324389879b57741b64160825b5ec0e

SHA512
72c302372ce87ceda2a3c70a6005d3f9c112f1641bc7fe6824c718971233e66c07e2996d2785fa358566c38714c25ea812c05c7cfd2f588284849d495fd24f39

Download Submit
memory/804-69-0x00000000010A0000-0x00000000010AC000-memory.dmp

Filesize
48KB

Download
memory/1340-57-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1340-61-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1340-59-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1340-65-0x0000000004900000-0x0000000004940000-memory.dmp

Filesize
256KB

Download
memory/1340-66-0x0000000004900000-0x0000000004940000-memory.dmp

Filesize
256KB

Download
memory/1424-54-0x00000000001A0000-0x0000000000274000-memory.dmp

Filesize
848KB

Download
memory/1424-55-0x00000000005B0000-0x0000000000600000-memory.dmp

Filesize
320KB

Download
memory/1424-56-0x000000001AF00000-0x000000001AF80000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads