xworm | 72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3

General

Target

72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe
Size

70KB
MD5

cb23e666cb32131891973871950f8080
SHA1

ee3223b5ace61c7e111d21f986b8e3cef73cdd11
SHA256

72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3
SHA512

aeb329ba7285a822b39be4794720fd57caaa4535d26ee98ba660862ef17e46aa93b70a1d6a415ad1e685d5cd9187cfe97c9a018d0ee63472b2caade3b75ab7ae
SSDEEP

1536:DsYRmYACQFrxIHmT7OMbEG7nKENiCD6+45xOGvLUuxqO:DZJj4dIHudbEdIz6xOGvLEO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:33795

includes-confident.gl.at.ply.gg:33795

Attributes

Install_directory
%AppData%
install_file
online-fix.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4264-1-0x0000000000C10000-0x0000000000C28000-memory.dmp	family_xworm
behavioral2/files/0x000b000000023cb5-59.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
1444	powershell.exe
1540	powershell.exe
3220	powershell.exe
2588	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\online-fix.lnk	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\online-fix.lnk	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe

Executes dropped EXE 2 IoCs

pid	Process
5092	online-fix.exe
1740	online-fix.exe

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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\online-fix = "C:\\Users\\Admin\\AppData\\Roaming\\online-fix.exe"	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.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
12	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
2272	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1444	powershell.exe
1444	powershell.exe
1540	powershell.exe
1540	powershell.exe
3220	powershell.exe
3220	powershell.exe
2588	powershell.exe
2588	powershell.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	1540	powershell.exe
Token: SeDebugPrivilege	3220	powershell.exe
Token: SeDebugPrivilege	2588	powershell.exe
Token: SeDebugPrivilege	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe
Token: SeDebugPrivilege	5092	online-fix.exe
Token: SeDebugPrivilege	1740	online-fix.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 1444	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	86
PID 4264 wrote to memory of 1444	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	86
PID 4264 wrote to memory of 1540	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	88
PID 4264 wrote to memory of 1540	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	88
PID 4264 wrote to memory of 3220	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	90
PID 4264 wrote to memory of 3220	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	90
PID 4264 wrote to memory of 2588	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	92
PID 4264 wrote to memory of 2588	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	92
PID 4264 wrote to memory of 2272	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe	95
PID 4264 wrote to memory of 2272	4264	72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.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\72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe
"C:\Users\Admin\AppData\Local\Temp\72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4264
- 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\72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1540
- 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\online-fix.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3220
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'online-fix.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2588
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "online-fix" /tr "C:\Users\Admin\AppData\Roaming\online-fix.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2272

C:\Users\Admin\AppData\Roaming\online-fix.exe
C:\Users\Admin\AppData\Roaming\online-fix.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5092

C:\Users\Admin\AppData\Roaming\online-fix.exe
C:\Users\Admin\AppData\Roaming\online-fix.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1740

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

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\online-fix.exe.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
2979eabc783eaca50de7be23dd4eafcf

SHA1
d709ce5f3a06b7958a67e20870bfd95b83cad2ea

SHA256
006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

SHA512
92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

Filesize
944B

MD5
b7189719e6df2c3dfc76197ec3f31f7a

SHA1
effd91412deadc87cc10ef76cdecc1e0b54b6d41

SHA256
1c72fa37d078b92c7e900b2e3d17c43c34d936a696a8ddf6c519f4a80308b892

SHA512
2df1f1d45844da7ffb17cdfb411f223e9c614c00f5cf7eb5ba92bf7ba174875af2a515371208286c95c0479c934ae2c6a83dfc0b54380be89db1eddd19faf978

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

Filesize
944B

MD5
0aa63dbb46d451e47a7a682c64af776d

SHA1
3b0026f2dae8e9c491ccaa40133755779de35aaa

SHA256
9158038718d41172c22a3c1a15852405e3e1c8e2c44fa066328eb1520e5d977b

SHA512
4d2564850c2ab1bc71089412f19147df4a1cd3075aa2039aa894271b333cd9c510b7ba4d70889f24d45d8b366d8b5167abdcf24314e4753420337c7d34e7c43f

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4dyqlxl4.a4o.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\online-fix.exe

Filesize
70KB

MD5
cb23e666cb32131891973871950f8080

SHA1
ee3223b5ace61c7e111d21f986b8e3cef73cdd11

SHA256
72d1c1095c58dac49282ff54d3ca3b7a927681e2a56d5e09e90cabcf48118fa3

SHA512
aeb329ba7285a822b39be4794720fd57caaa4535d26ee98ba660862ef17e46aa93b70a1d6a415ad1e685d5cd9187cfe97c9a018d0ee63472b2caade3b75ab7ae

Download Submit
memory/1444-14-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-15-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-18-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/1444-13-0x000001F64F620000-0x000001F64F642000-memory.dmp

Filesize
136KB

Download
memory/1444-3-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/4264-0-0x00007FF857523000-0x00007FF857525000-memory.dmp

Filesize
8KB

Download
memory/4264-2-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/4264-57-0x00007FF857523000-0x00007FF857525000-memory.dmp

Filesize
8KB

Download
memory/4264-58-0x00007FF857520000-0x00007FF857FE1000-memory.dmp

Filesize
10.8MB

Download
memory/4264-1-0x0000000000C10000-0x0000000000C28000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads