xworm | f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274

Analysis

max time kernel
109s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-11-2024 15:15

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General

Target

f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe
Size

29KB
MD5

f6573eddecb4954376e9f8ad71224e30
SHA1

fad9e65dd5dda45c13d41e9b65a123e2486a05c6
SHA256

f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274
SHA512

3a61062d7de93d8bcace7b297ed3f2d281ba5207876107565604405170628dff501a576c59f121ff7d4ec062d89b4cd6423d71c205bfa89e7282775f4caee34a
SSDEEP

768:bpAFB16GS5pMh0aVXiSQACn5UhlVFLJAXh92Jv/h/A:NAFhxh0aV4nsFJc9C+

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

127.0.0.1:51061

23.ip.gl.ply.gg:51061

Mutex

xOb48s6ij6ye94KQ

Attributes

Install_directory
%AppData%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x00060000000230d8-29.dat	family_xworm
behavioral2/memory/1800-34-0x0000000000FD0000-0x0000000000FE0000-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 5 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2604	powershell.exe
3620	powershell.exe
4828	powershell.exe
524	powershell.exe
3740	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Nixware.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
1800	Nixware.exe
4824	svchost.exe
2468	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Nixware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Nixware.exe"	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	Nixware.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 9 IoCs

evasion

pid	Process
624	timeout.exe
3848	timeout.exe
228	timeout.exe
3948	timeout.exe
560	timeout.exe
3452	timeout.exe
1920	timeout.exe
4248	timeout.exe
2976	timeout.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
1280	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2604	powershell.exe
2604	powershell.exe
3620	powershell.exe
3620	powershell.exe
4828	powershell.exe
4828	powershell.exe
524	powershell.exe
524	powershell.exe
3740	powershell.exe
3740	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	1800	Nixware.exe
Token: SeDebugPrivilege	3620	powershell.exe
Token: SeDebugPrivilege	4828	powershell.exe
Token: SeDebugPrivilege	524	powershell.exe
Token: SeDebugPrivilege	3740	powershell.exe
Token: SeDebugPrivilege	4824	svchost.exe
Token: SeDebugPrivilege	2468	svchost.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 4636 wrote to memory of 2604	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	89
PID 4636 wrote to memory of 2604	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	89
PID 4636 wrote to memory of 1800	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	91
PID 4636 wrote to memory of 1800	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	91
PID 4636 wrote to memory of 1028	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	92
PID 4636 wrote to memory of 1028	4636	f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe	92
PID 1028 wrote to memory of 2976	1028	cmd.exe	96
PID 1028 wrote to memory of 2976	1028	cmd.exe	96
PID 1028 wrote to memory of 228	1028	cmd.exe	98
PID 1028 wrote to memory of 228	1028	cmd.exe	98
PID 1028 wrote to memory of 3948	1028	cmd.exe	102
PID 1028 wrote to memory of 3948	1028	cmd.exe	102
PID 1800 wrote to memory of 3620	1800	Nixware.exe	103
PID 1800 wrote to memory of 3620	1800	Nixware.exe	103
PID 1028 wrote to memory of 560	1028	cmd.exe	105
PID 1028 wrote to memory of 560	1028	cmd.exe	105
PID 1800 wrote to memory of 4828	1800	Nixware.exe	106
PID 1800 wrote to memory of 4828	1800	Nixware.exe	106
PID 1800 wrote to memory of 524	1800	Nixware.exe	108
PID 1800 wrote to memory of 524	1800	Nixware.exe	108
PID 1800 wrote to memory of 3740	1800	Nixware.exe	110
PID 1800 wrote to memory of 3740	1800	Nixware.exe	110
PID 1028 wrote to memory of 3848	1028	cmd.exe	112
PID 1028 wrote to memory of 3848	1028	cmd.exe	112
PID 1028 wrote to memory of 3452	1028	cmd.exe	115
PID 1028 wrote to memory of 3452	1028	cmd.exe	115
PID 1800 wrote to memory of 1280	1800	Nixware.exe	116
PID 1800 wrote to memory of 1280	1800	Nixware.exe	116
PID 1028 wrote to memory of 1920	1028	cmd.exe	118
PID 1028 wrote to memory of 1920	1028	cmd.exe	118
PID 1028 wrote to memory of 4248	1028	cmd.exe	119
PID 1028 wrote to memory of 4248	1028	cmd.exe	119
PID 1028 wrote to memory of 624	1028	cmd.exe	124
PID 1028 wrote to memory of 624	1028	cmd.exe	124

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe
"C:\Users\Admin\AppData\Local\Temp\f3590b9a4f1293d0f7f662de60607695bdb6e95aafdb459e2de1c7096b7a1274N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4636
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Nixware.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2604
- C:\Users\Admin\AppData\Local\Temp\Nixware.exe
  "C:\Users\Admin\AppData\Local\Temp\Nixware.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1800
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Nixware.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3620
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Nixware.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4828
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:524
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3740
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1280
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\fqwf.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1028
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:2976
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:228
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3948
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:560
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3848
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:3452
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:1920
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:4248
- - C:\Windows\system32\timeout.exe
    timeout /t 1 /nobreak
    3⤵
    - Delays execution with timeout.exe
    PID:624

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4824

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2468

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

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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

Filesize
944B

MD5
110b59ca4d00786d0bde151d21865049

SHA1
557e730d93fdf944a0cad874022df1895fb5b2e2

SHA256
77f69011c214ea5a01fd2035d781914c4893aee66d784deadc22179eadfdf77f

SHA512
cb55ac6eca50f4427718bace861679c88b2fdfea94d30209e8d61ca73a6ce9f8c4b5334922d2660a829b0636d20cbdf3bae1497c920e604efe6c636019feb10e

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

Filesize
944B

MD5
9bc110200117a3752313ca2acaf8a9e1

SHA1
fda6b7da2e7b0175b391475ca78d1b4cf2147cd3

SHA256
c88e4bbb64f7fa31429ebe82c1cf07785c44486f37576f783a26ac856e02a4eb

SHA512
1f1af32aa18a8cbfcc65b0d4fb7e6ca2705f125eaa85789e981ee68b90c64522e954825abf460d4b4f97567715dfae8d9b0a25a4d54d10bc4c257c472f2e80fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\Nixware.exe

Filesize
35KB

MD5
7927a45df166a1d50c6a3d2e0a76fd9e

SHA1
001f0fb1a6eee3086ff7fa02b22789c0b75ae62d

SHA256
1947f056c89dd21170950463b4abdcd644bbaf1a519bfb7be502f09178853135

SHA512
7b0d934be2fd3a6d2b1938b79a1763637c226cba22a3d42e3addb3d5f9346380d4636a6c5fee6d301b9e19dac2d7c239ba5d8e594a7a15c23d6b0aae679f3815

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dj5qp5lk.30b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\fqwf.bat

Filesize
200B

MD5
acda9a75141b683a359bf739e74111c3

SHA1
a618d2350a5357f8b19d642320d26dbe0a891174

SHA256
7ef23e716b218877f06bc2e99869f93ee8406766ee50c0de9e83e549f2334971

SHA512
33637b529ec9360fc5183f0fc1e11528c8496a5fbce64b6563c416b5193b62641835a1ded1f2b7412b5e6ae1289de0236b42db1bd1e8e81309fb5e8b35c2fd8d

Download Submit
memory/1800-34-0x0000000000FD0000-0x0000000000FE0000-memory.dmp

Filesize
64KB

Download
memory/2604-17-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-14-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-13-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-12-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/2604-11-0x000001D8BF6E0000-0x000001D8BF702000-memory.dmp

Filesize
136KB

Download
memory/4636-32-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/4636-35-0x00007FFBA0A00000-0x00007FFBA14C1000-memory.dmp

Filesize
10.8MB

Download
memory/4636-0-0x00007FFBA0A03000-0x00007FFBA0A05000-memory.dmp

Filesize
8KB

Download
memory/4636-1-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download