xworm | b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973

General

Target

b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
Size

948KB
MD5

f42ead56b96d1ba327e85589ef129525
SHA1

57a14d971e918a2f0cdf9c7de2d58f7f0735fa27
SHA256

b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973
SHA512

d3f39ac55320356472ea2f9c94633463c48da6f7691d6362eb35501ef9a6e764ad0e67c7177383e074750e4af426d2b20d8e3f751e6369984bf33ea6872af0f0
SSDEEP

12288:H76xn0ce0nsDy0Q00QEA86GiuzOg7IPD6TbsdWcS/0w1ey2EcP1E4gLO:b6xnLnBmn86uzOg7IrYbyWRjeZxgL

Score

10^/10

Malware Config

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2724-28-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2724-30-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2724-29-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2724-25-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2724-23-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
332	powershell.exe
2964	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe

Loads dropped DLL 1 IoCs

pid	Process
2724	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2632 set thread context of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
332	powershell.exe
2964	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
Token: SeDebugPrivilege	332	powershell.exe
Token: SeDebugPrivilege	2724	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
Token: SeDebugPrivilege	2964	powershell.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2632 wrote to memory of 332	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	31
PID 2632 wrote to memory of 332	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	31
PID 2632 wrote to memory of 332	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	31
PID 2632 wrote to memory of 332	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	31
PID 2632 wrote to memory of 2964	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	33
PID 2632 wrote to memory of 2964	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	33
PID 2632 wrote to memory of 2964	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	33
PID 2632 wrote to memory of 2964	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	33
PID 2632 wrote to memory of 2972	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	34
PID 2632 wrote to memory of 2972	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	34
PID 2632 wrote to memory of 2972	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	34
PID 2632 wrote to memory of 2972	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	34
PID 2632 wrote to memory of 2720	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	37
PID 2632 wrote to memory of 2720	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	37
PID 2632 wrote to memory of 2720	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	37
PID 2632 wrote to memory of 2720	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	37
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38
PID 2632 wrote to memory of 2724	2632	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	38

C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
"C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2632
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:332
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VVfccOQ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2964
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VVfccOQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF19F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2972
- C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
  "C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
  2⤵
  PID:2720
- C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
  "C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpF19F.tmp

Filesize
1KB

MD5
e885a4e8d94860a9d8168975eb748fe5

SHA1
e325d64046c3eb534b6aa1694ca7eecf3e55148a

SHA256
f4df1d6d9bb293d023ba2427d6b5c929da17b62a4d3c2dd89a3cd4cb16792f68

SHA512
e422f43edcaa3f48038e6d0f9cce9d25b557cbae3c680ca99a7eb706997103538fb1115d8e00ef12e5bc519264fc2ca8be76d1a8fcf09fa60f1818b87529caf9

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\IA3VLMPHINXFI4CYL712.temp

Filesize
7KB

MD5
c905cb849c6b249baeff62424fa603c1

SHA1
cdbb3d5e6f5bdb125598914e80da1ae6f1fb51fb

SHA256
fdc9c930e24ab451ed45f35d06fa5ced21ca12ae4167f561c33e19d15327e8b8

SHA512
7a7b7633ed2e8cf9c00f0681059c850303a3cd96899c182b433a69e6301c7f09a6a818dbc445ca823af3b58c5e931c60697824ed08006839dbc8e6770e3ac6cd

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

Filesize
948KB

MD5
f42ead56b96d1ba327e85589ef129525

SHA1
57a14d971e918a2f0cdf9c7de2d58f7f0735fa27

SHA256
b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973

SHA512
d3f39ac55320356472ea2f9c94633463c48da6f7691d6362eb35501ef9a6e764ad0e67c7177383e074750e4af426d2b20d8e3f751e6369984bf33ea6872af0f0

Download Submit
memory/2632-4-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2632-31-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-5-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-6-0x0000000004DC0000-0x0000000004E14000-memory.dmp

Filesize
336KB

Download
memory/2632-3-0x0000000074680000-0x0000000074D6E000-memory.dmp

Filesize
6.9MB

Download
memory/2632-2-0x00000000004A0000-0x00000000004B2000-memory.dmp

Filesize
72KB

Download
memory/2632-1-0x0000000000190000-0x0000000000282000-memory.dmp

Filesize
968KB

Download
memory/2632-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/2724-28-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-29-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-25-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-23-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-19-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-30-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2724-21-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads