xworm | b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 13:06

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General

Target

b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
Size

948KB
MD5

f42ead56b96d1ba327e85589ef129525
SHA1

57a14d971e918a2f0cdf9c7de2d58f7f0735fa27
SHA256

b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973
SHA512

d3f39ac55320356472ea2f9c94633463c48da6f7691d6362eb35501ef9a6e764ad0e67c7177383e074750e4af426d2b20d8e3f751e6369984bf33ea6872af0f0
SSDEEP

12288:H76xn0ce0nsDy0Q00QEA86GiuzOg7IPD6TbsdWcS/0w1ey2EcP1E4gLO:b6xnLnBmn86uzOg7IrYbyWRjeZxgL

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4724-27-0x0000000000400000-0x000000000040E000-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
1812	powershell.exe
3856	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2760 set thread context of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100

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
4092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	powershell.exe
3856	powershell.exe
1812	powershell.exe
3856	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3856	powershell.exe
Token: SeDebugPrivilege	1812	powershell.exe
Token: SeDebugPrivilege	4724	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2760 wrote to memory of 1812	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	94
PID 2760 wrote to memory of 1812	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	94
PID 2760 wrote to memory of 1812	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	94
PID 2760 wrote to memory of 3856	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	96
PID 2760 wrote to memory of 3856	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	96
PID 2760 wrote to memory of 3856	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	96
PID 2760 wrote to memory of 4092	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	98
PID 2760 wrote to memory of 4092	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	98
PID 2760 wrote to memory of 4092	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	98
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100
PID 2760 wrote to memory of 4724	2760	b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe	100

C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
"C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2760
- 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:1812
- 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:3856
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VVfccOQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD12.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4092
- C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe
  "C:\Users\Admin\AppData\Local\Temp\b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
ffab0bb935ab7bf6607bf79161d79cf5

SHA1
fa9dfb3c559dbeae73bdb8e5e266c30484ddfbe4

SHA256
17b6208284f4fb59b6468c516236aa01f153c9b24fe79e2c9946a0b07d1be5f7

SHA512
fe702b3afc05c99e186515af1050b4ebd7665612ae413b4b25f08f7918d59b75024fd4a694fbd86b067a7404028a478c86dc903542a2530909131259d7c902bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vk3uzh04.pws.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDD12.tmp

Filesize
1KB

MD5
50d59051b38758d76432089052f5c018

SHA1
3743ff77685135cc5a8d6b602d65fc1929be4176

SHA256
d011fd89bd41e37efc4af61db31c6ed5a2d5bd63a87c3b86b4ae135f3ac24bdd

SHA512
bf2e865c8243763e5763e7d18c74b96632e343e72c19542d95068f19cb5109b1a96c8e1575218621493857598670adb0728207ed692178267d00640fd8e12bb6

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

Filesize
948KB

MD5
f42ead56b96d1ba327e85589ef129525

SHA1
57a14d971e918a2f0cdf9c7de2d58f7f0735fa27

SHA256
b7df6d57fa0d03e8b88e410b7e3f9e9b2a3f1ea1ed7da20772b5ac891901b973

SHA512
d3f39ac55320356472ea2f9c94633463c48da6f7691d6362eb35501ef9a6e764ad0e67c7177383e074750e4af426d2b20d8e3f751e6369984bf33ea6872af0f0

Download Submit
memory/1812-78-0x0000000007E70000-0x0000000007E7E000-memory.dmp

Filesize
56KB

Download
memory/1812-16-0x0000000003040000-0x0000000003076000-memory.dmp

Filesize
216KB

Download
memory/1812-72-0x0000000007B50000-0x0000000007BF3000-memory.dmp

Filesize
652KB

Download
memory/1812-74-0x0000000007C40000-0x0000000007C5A000-memory.dmp

Filesize
104KB

Download
memory/1812-61-0x0000000006E60000-0x0000000006E7E000-memory.dmp

Filesize
120KB

Download
memory/1812-50-0x0000000007910000-0x0000000007942000-memory.dmp

Filesize
200KB

Download
memory/1812-51-0x0000000075AA0000-0x0000000075AEC000-memory.dmp

Filesize
304KB

Download
memory/1812-87-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-17-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-18-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-19-0x0000000005AB0000-0x00000000060D8000-memory.dmp

Filesize
6.2MB

Download
memory/1812-20-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1812-49-0x0000000006EB0000-0x0000000006EFC000-memory.dmp

Filesize
304KB

Download
memory/1812-48-0x0000000006920000-0x000000000693E000-memory.dmp

Filesize
120KB

Download
memory/1812-81-0x0000000007F60000-0x0000000007F68000-memory.dmp

Filesize
32KB

Download
memory/2760-4-0x0000000005990000-0x0000000005CE4000-memory.dmp

Filesize
3.3MB

Download
memory/2760-2-0x0000000005DC0000-0x0000000006364000-memory.dmp

Filesize
5.6MB

Download
memory/2760-3-0x0000000005810000-0x00000000058A2000-memory.dmp

Filesize
584KB

Download
memory/2760-1-0x0000000000D10000-0x0000000000E02000-memory.dmp

Filesize
968KB

Download
memory/2760-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/2760-38-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2760-6-0x00000000064C0000-0x000000000655C000-memory.dmp

Filesize
624KB

Download
memory/2760-5-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/2760-11-0x00000000069E0000-0x0000000006A34000-memory.dmp

Filesize
336KB

Download
memory/2760-10-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/2760-9-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/2760-8-0x0000000005960000-0x0000000005972000-memory.dmp

Filesize
72KB

Download
memory/2760-7-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-73-0x0000000007DD0000-0x000000000844A000-memory.dmp

Filesize
6.5MB

Download
memory/3856-80-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

Filesize
104KB

Download
memory/3856-75-0x0000000007800000-0x000000000780A000-memory.dmp

Filesize
40KB

Download
memory/3856-76-0x0000000007A10000-0x0000000007AA6000-memory.dmp

Filesize
600KB

Download
memory/3856-77-0x0000000007990000-0x00000000079A1000-memory.dmp

Filesize
68KB

Download
memory/3856-25-0x00000000054C0000-0x0000000005526000-memory.dmp

Filesize
408KB

Download
memory/3856-79-0x00000000079D0000-0x00000000079E4000-memory.dmp

Filesize
80KB

Download
memory/3856-62-0x0000000075AA0000-0x0000000075AEC000-memory.dmp

Filesize
304KB

Download
memory/3856-21-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-26-0x0000000005D20000-0x0000000005D86000-memory.dmp

Filesize
408KB

Download
memory/3856-24-0x00000000053A0000-0x00000000053C2000-memory.dmp

Filesize
136KB

Download
memory/3856-88-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/3856-22-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/4724-27-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download