xworm | 7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

General

Target

0x0007000000016d42-20.exe
Size

75KB
MD5

8d6e86e6e799c75bd5123534bdbf411b
SHA1

9fc526e97077ed2a5e78371fdab5ab7ecf789368
SHA256

7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888
SHA512

8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265
SSDEEP

1536:2Z6tgBI11qoEgGBfCDYsN+bT0IrgLSUtmf6/rhtOs4eJ9SYUh:2Z1I11qoGBgYA+bgIEOe9htOs4eJjO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.145.41.178:1111

Attributes

Install_directory
%AppData%
install_file
Windows Defender Notification.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/5056-1-0x00000000006A0000-0x00000000006BA000-memory.dmp	family_xworm
behavioral2/files/0x000e000000023c9d-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
5076	powershell.exe
5116	powershell.exe
1492	powershell.exe
1756	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	0x0007000000016d42-20.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.exe

Executes dropped EXE 2 IoCs

pid	Process
3028	Windows Defender Notification.exe
1668	Windows Defender Notification.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Defender Notification = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Defender Notification.exe"	0x0007000000016d42-20.exe

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
2984	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
5076	powershell.exe
5076	powershell.exe
5116	powershell.exe
5116	powershell.exe
1492	powershell.exe
1492	powershell.exe
1756	powershell.exe
1756	powershell.exe
5056	0x0007000000016d42-20.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	5056	0x0007000000016d42-20.exe
Token: SeDebugPrivilege	5076	powershell.exe
Token: SeDebugPrivilege	5116	powershell.exe
Token: SeDebugPrivilege	1492	powershell.exe
Token: SeDebugPrivilege	1756	powershell.exe
Token: SeDebugPrivilege	5056	0x0007000000016d42-20.exe
Token: SeDebugPrivilege	3028	Windows Defender Notification.exe
Token: SeDebugPrivilege	1668	Windows Defender Notification.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5056	0x0007000000016d42-20.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 5076	5056	0x0007000000016d42-20.exe	90
PID 5056 wrote to memory of 5076	5056	0x0007000000016d42-20.exe	90
PID 5056 wrote to memory of 5116	5056	0x0007000000016d42-20.exe	93
PID 5056 wrote to memory of 5116	5056	0x0007000000016d42-20.exe	93
PID 5056 wrote to memory of 1492	5056	0x0007000000016d42-20.exe	96
PID 5056 wrote to memory of 1492	5056	0x0007000000016d42-20.exe	96
PID 5056 wrote to memory of 1756	5056	0x0007000000016d42-20.exe	98
PID 5056 wrote to memory of 1756	5056	0x0007000000016d42-20.exe	98
PID 5056 wrote to memory of 2984	5056	0x0007000000016d42-20.exe	100
PID 5056 wrote to memory of 2984	5056	0x0007000000016d42-20.exe	100

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\0x0007000000016d42-20.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000016d42-20.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:5056
- 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\0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5076
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5116
- 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\Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1492
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1756
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender Notification" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2984

C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3028

C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
"C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1668

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\Windows Defender Notification.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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
0c03ce8073050ea905ae4e2f74e2570e

SHA1
a6874536c7b1d14ccbe17aab8cdf6066811db319

SHA256
6eb25b99c26e8ea2fe4210e11d2173694fa08400f577625bd3c40d54621e37df

SHA512
fa695a4932bab2a68a670be457e6eb05b1c1a16f0a750bea9fadbd6cd9b2a6536ac46baeed12cbb45e8b63b6822466b74778b4a4fbdce948cb9455ebc36a471b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_akbz2sgh.2tc.psm1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe

Filesize
75KB

MD5
8d6e86e6e799c75bd5123534bdbf411b

SHA1
9fc526e97077ed2a5e78371fdab5ab7ecf789368

SHA256
7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

SHA512
8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265

Download Submit
memory/5056-56-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5056-0-0x00007FFF96F53000-0x00007FFF96F55000-memory.dmp

Filesize
8KB

Download
memory/5056-57-0x00007FFF96F53000-0x00007FFF96F55000-memory.dmp

Filesize
8KB

Download
memory/5056-58-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5056-1-0x00000000006A0000-0x00000000006BA000-memory.dmp

Filesize
104KB

Download
memory/5076-17-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5076-14-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5076-13-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5076-12-0x00007FFF96F50000-0x00007FFF97A11000-memory.dmp

Filesize
10.8MB

Download
memory/5076-2-0x000002B744AA0000-0x000002B744AC2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads