xworm | 995b076987f2c8c9217c04b52f4a618dd317d5d5415b3898ba107d12a8e9522d

Resubmissions

19/01/2025, 17:36 UTC

250119-v6zj9sykbs 10

19/01/2025, 17:36 UTC

250119-v6jh2syngr 10

19/01/2025, 16:37 UTC

250119-t5adbawrcp 10

Analysis

max time kernel
95s
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
19/01/2025, 16:37 UTC

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General

Target

Nerest sofr/!LOADER.exe
Size

125KB
MD5

0324d4d7ff2026809d8c3f4bd0f3573e
SHA1

73f39a2778bbaa29246a75a7274b8bc7836bd329
SHA256

e14dbac690979b4fa9b2fee4a8221bfdcb03500458d3f9c8912fa1e0e4674492
SHA512

0209d6abb503a2698ee3bb8393da8b7622c3f6318f7aff8173a2406abc31d5d422002ab47113a85e2b7dc292d6735c23fd083aa1c1de4dd275a6e0f28e091f6b
SSDEEP

3072:3uZ+4zKUSfFzqbaQgKA64kCOd4pUzaewwQU4OHRemSL:3gKJFzqb3A64kK+zBuU4OIm

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

back-spots.gl.at.ply.gg:21395

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2148-1-0x00000000008D0000-0x00000000008F6000-memory.dmp	family_xworm
behavioral2/files/0x000c000000023c98-58.dat	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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2628	powershell.exe
3680	powershell.exe
628	powershell.exe
1864	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	!LOADER.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
5076	conhost
2668	conhost

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\conhost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\conhost"	!LOADER.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

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

System Information Discovery
T1082

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
3840	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2628	powershell.exe
2628	powershell.exe
3680	powershell.exe
3680	powershell.exe
628	powershell.exe
628	powershell.exe
1864	powershell.exe
1864	powershell.exe
2148	!LOADER.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2148	!LOADER.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	3680	powershell.exe
Token: SeDebugPrivilege	628	powershell.exe
Token: SeDebugPrivilege	1864	powershell.exe
Token: SeDebugPrivilege	2148	!LOADER.exe
Token: SeDebugPrivilege	5076	conhost
Token: SeDebugPrivilege	2668	conhost

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2148	!LOADER.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 2628	2148	!LOADER.exe	87
PID 2148 wrote to memory of 2628	2148	!LOADER.exe	87
PID 2148 wrote to memory of 3680	2148	!LOADER.exe	89
PID 2148 wrote to memory of 3680	2148	!LOADER.exe	89
PID 2148 wrote to memory of 628	2148	!LOADER.exe	91
PID 2148 wrote to memory of 628	2148	!LOADER.exe	91
PID 2148 wrote to memory of 1864	2148	!LOADER.exe	93
PID 2148 wrote to memory of 1864	2148	!LOADER.exe	93
PID 2148 wrote to memory of 3840	2148	!LOADER.exe	95
PID 2148 wrote to memory of 3840	2148	!LOADER.exe	95

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\Nerest sofr\!LOADER.exe
"C:\Users\Admin\AppData\Local\Temp\Nerest sofr\!LOADER.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2148
- 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\Nerest sofr\!LOADER.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '!LOADER.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3680
- 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\conhost'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'conhost'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1864
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "conhost" /tr "C:\Users\Admin\AppData\Local\Temp\conhost"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3840

C:\Users\Admin\AppData\Local\Temp\conhost
C:\Users\Admin\AppData\Local\Temp\conhost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5076

C:\Users\Admin\AppData\Local\Temp\conhost
C:\Users\Admin\AppData\Local\Temp\conhost
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2668

Network

DNS

8.8.8.8.in-addr.arpa

Remote address:

8.8.8.8:53

Request

8.8.8.8.in-addr.arpa

IN PTR

Response

8.8.8.8.in-addr.arpa

IN PTR

dnsgoogle
DNS

228.249.119.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

228.249.119.40.in-addr.arpa

IN PTR

Response
DNS

76.32.126.40.in-addr.arpa

Remote address:

8.8.8.8:53

Request

76.32.126.40.in-addr.arpa

IN PTR

Response
DNS

79.190.18.2.in-addr.arpa

Remote address:

8.8.8.8:53

Request

79.190.18.2.in-addr.arpa

IN PTR

Response

79.190.18.2.in-addr.arpa

IN PTR

a2-18-190-79deploystaticakamaitechnologiescom
DNS

167.173.78.104.in-addr.arpa

Remote address:

8.8.8.8:53

Request

167.173.78.104.in-addr.arpa

IN PTR

Response

167.173.78.104.in-addr.arpa

IN PTR

a104-78-173-167deploystaticakamaitechnologiescom
DNS

ip-api.com

!LOADER.exe

Remote address:

8.8.8.8:53

Request

ip-api.com

IN A

Response

ip-api.com

IN A

208.95.112.1
GET

http://ip-api.com/line/?fields=hosting

!LOADER.exe

Remote address:

208.95.112.1:80

Request

GET /line/?fields=hosting HTTP/1.1
Host: ip-api.com
Connection: Keep-Alive

Response

HTTP/1.1 200 OK

Date: Sun, 19 Jan 2025 16:38:33 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 6
Access-Control-Allow-Origin: *
X-Ttl: 60
X-Rl: 44
DNS

1.112.95.208.in-addr.arpa

Remote address:

8.8.8.8:53

Request

1.112.95.208.in-addr.arpa

IN PTR

Response

1.112.95.208.in-addr.arpa

IN PTR

ip-apicom
DNS

13.86.106.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

13.86.106.20.in-addr.arpa

IN PTR

Response
DNS

back-spots.gl.at.ply.gg

!LOADER.exe

Remote address:

8.8.8.8:53

Request

back-spots.gl.at.ply.gg

IN A

Response

back-spots.gl.at.ply.gg

IN A

147.185.221.25
DNS

25.221.185.147.in-addr.arpa

Remote address:

8.8.8.8:53

Request

25.221.185.147.in-addr.arpa

IN PTR

Response
DNS

154.239.44.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

154.239.44.20.in-addr.arpa

IN PTR

Response
DNS

197.87.175.4.in-addr.arpa

Remote address:

8.8.8.8:53

Request

197.87.175.4.in-addr.arpa

IN PTR

Response
DNS

171.39.242.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

171.39.242.20.in-addr.arpa

IN PTR

Response
DNS

20.49.80.91.in-addr.arpa

Remote address:

8.8.8.8:53

Request

20.49.80.91.in-addr.arpa

IN PTR

Response
DNS

172.214.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.214.232.199.in-addr.arpa

IN PTR

Response
DNS

172.210.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.210.232.199.in-addr.arpa

IN PTR

Response
DNS

14.227.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

14.227.111.52.in-addr.arpa

IN PTR

Response

208.95.112.1:80

http://ip-api.com/line/?fields=hosting

http

!LOADER.exe

356 B
347 B
6
4

HTTP Request

GET http://ip-api.com/line/?fields=hosting

HTTP Response

200
147.185.221.25:21395

back-spots.gl.at.ply.gg

!LOADER.exe

2.7kB
14.5kB
37
44
147.185.221.25:21395

back-spots.gl.at.ply.gg

!LOADER.exe

18.2MB
274.6kB
13439
6295

8.8.8.8:53

8.8.8.8.in-addr.arpa

dns

66 B
90 B
1
1

DNS Request

8.8.8.8.in-addr.arpa
8.8.8.8:53

228.249.119.40.in-addr.arpa

dns

73 B
159 B
1
1

DNS Request

228.249.119.40.in-addr.arpa
8.8.8.8:53

76.32.126.40.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

76.32.126.40.in-addr.arpa
8.8.8.8:53

79.190.18.2.in-addr.arpa

dns

70 B
133 B
1
1

DNS Request

79.190.18.2.in-addr.arpa
8.8.8.8:53

167.173.78.104.in-addr.arpa

dns

73 B
139 B
1
1

DNS Request

167.173.78.104.in-addr.arpa
8.8.8.8:53

ip-api.com

dns

!LOADER.exe

56 B
72 B
1
1

DNS Request

ip-api.com

DNS Response

208.95.112.1
8.8.8.8:53

1.112.95.208.in-addr.arpa

dns

71 B
95 B
1
1

DNS Request

1.112.95.208.in-addr.arpa
8.8.8.8:53

13.86.106.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

13.86.106.20.in-addr.arpa
8.8.8.8:53

back-spots.gl.at.ply.gg

dns

!LOADER.exe

69 B
85 B
1
1

DNS Request

back-spots.gl.at.ply.gg

DNS Response

147.185.221.25
8.8.8.8:53

25.221.185.147.in-addr.arpa

dns

73 B
130 B
1
1

DNS Request

25.221.185.147.in-addr.arpa
8.8.8.8:53

154.239.44.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

154.239.44.20.in-addr.arpa
8.8.8.8:53

197.87.175.4.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

197.87.175.4.in-addr.arpa
8.8.8.8:53

171.39.242.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

171.39.242.20.in-addr.arpa
8.8.8.8:53

20.49.80.91.in-addr.arpa

dns

70 B
145 B
1
1

DNS Request

20.49.80.91.in-addr.arpa
8.8.8.8:53

172.214.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.214.232.199.in-addr.arpa
8.8.8.8:53

172.210.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.210.232.199.in-addr.arpa
8.8.8.8:53

14.227.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

14.227.111.52.in-addr.arpa

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\conhost.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
d8cb3e9459807e35f02130fad3f9860d

SHA1
5af7f32cb8a30e850892b15e9164030a041f4bd6

SHA256
2b139c74072ccbdaa17b950f32a6dbc934dfb7af9973d97c9b0d9c498012ba68

SHA512
045239ba31367fbdd59e883f74eafc05724e23bd6e8f0c1e7171ea2496a497eb9e0cfcb57285bb81c4d569daadba43d6ef64c626ca48f1e2a59e8d97f0cc9184

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

Filesize
944B

MD5
22310ad6749d8cc38284aa616efcd100

SHA1
440ef4a0a53bfa7c83fe84326a1dff4326dcb515

SHA256
55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

SHA512
2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1ukrrvbz.1j2.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\conhost

Filesize
125KB

MD5
0324d4d7ff2026809d8c3f4bd0f3573e

SHA1
73f39a2778bbaa29246a75a7274b8bc7836bd329

SHA256
e14dbac690979b4fa9b2fee4a8221bfdcb03500458d3f9c8912fa1e0e4674492

SHA512
0209d6abb503a2698ee3bb8393da8b7622c3f6318f7aff8173a2406abc31d5d422002ab47113a85e2b7dc292d6735c23fd083aa1c1de4dd275a6e0f28e091f6b

Download Submit
memory/2148-0-0x00007FFAD9D83000-0x00007FFAD9D85000-memory.dmp

Filesize
8KB

Download
memory/2148-2-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download
memory/2148-54-0x00007FFAD9D83000-0x00007FFAD9D85000-memory.dmp

Filesize
8KB

Download
memory/2148-57-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download
memory/2148-62-0x00000000010C0000-0x00000000010CC000-memory.dmp

Filesize
48KB

Download
memory/2148-1-0x00000000008D0000-0x00000000008F6000-memory.dmp

Filesize
152KB

Download
memory/2628-13-0x00000226C3C70000-0x00000226C3C92000-memory.dmp

Filesize
136KB

Download
memory/2628-15-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download
memory/2628-18-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download
memory/2628-14-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download
memory/2628-3-0x00007FFAD9D80000-0x00007FFADA841000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

HTTP Request

HTTP Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Response

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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