xworm | d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2023 12:26

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General

Target

hello.exe
Size

133KB
MD5

27d43df9fb6228ab9ec3482a528f1da6
SHA1

23b938e1caf2507ae797805f27ee66357ee0c53a
SHA256

d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469
SHA512

30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc
SSDEEP

1536:u7K22GZXoCVg0vfiCTzbec/31ENYw649ApO4uMET1qxj751cNz0UCdkV/L7t:u7Kh+4CO0vfiC/beGCNYi9ApOZUH5aJ

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

needforrat.hopto.org:7000

Attributes

install_file
USB.exe

Signatures

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

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-1-5-21-618519468-4027732583-1827558364-1000\Control Panel\International\Geo\Nation	hello.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
4904	hello.exe
500	hello.exe
5104	hello.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-618519468-4027732583-1827558364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hello = "C:\\Users\\Admin\\AppData\\Roaming\\hello.exe"	hello.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
9	ip-api.com

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
4828	powershell.exe
4828	powershell.exe
1020	powershell.exe
1020	powershell.exe
4268	powershell.exe
4268	powershell.exe
2136	hello.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	hello.exe
Token: SeDebugPrivilege	4828	powershell.exe
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeDebugPrivilege	4268	powershell.exe
Token: SeDebugPrivilege	2136	hello.exe
Token: SeDebugPrivilege	4904	hello.exe
Token: SeDebugPrivilege	500	hello.exe
Token: SeDebugPrivilege	5104	hello.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2136	hello.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 4828	2136	hello.exe	85
PID 2136 wrote to memory of 4828	2136	hello.exe	85
PID 2136 wrote to memory of 1020	2136	hello.exe	87
PID 2136 wrote to memory of 1020	2136	hello.exe	87
PID 2136 wrote to memory of 4268	2136	hello.exe	89
PID 2136 wrote to memory of 4268	2136	hello.exe	89
PID 2136 wrote to memory of 2344	2136	hello.exe	91
PID 2136 wrote to memory of 2344	2136	hello.exe	91

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\hello.exe
"C:\Users\Admin\AppData\Local\Temp\hello.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:2136
- 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\hello.exe'
  2⤵
  - 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 -ExclusionProcess 'hello.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1020
- 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\hello.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4268
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "hello" /tr "C:\Users\Admin\AppData\Roaming\hello.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2344

C:\Users\Admin\AppData\Roaming\hello.exe
C:\Users\Admin\AppData\Roaming\hello.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4904

C:\Users\Admin\AppData\Roaming\hello.exe
C:\Users\Admin\AppData\Roaming\hello.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:500

C:\Users\Admin\AppData\Roaming\hello.exe
C:\Users\Admin\AppData\Roaming\hello.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5104

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\hello.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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
51cf8df21f531e31f7740b4ec487a48a

SHA1
40c6a73b22d71625a62df109aefc92a5f9b9d13e

SHA256
263d9b98a897d1d66da4832af640c4bf5ab0ae91125ba12243453dfe714f3d0d

SHA512
57a85461f6ea96b26a8b53d3a9cca18543e4ddbe996e8f412fc4cf7cf6e9ffe558c96da7b322a42f18bef62020e65aee119bed6102f75e2f605df09b02ec6368

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d1lfsx51.dwt.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
133KB

MD5
27d43df9fb6228ab9ec3482a528f1da6

SHA1
23b938e1caf2507ae797805f27ee66357ee0c53a

SHA256
d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

SHA512
30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc

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

Filesize
133KB

MD5
27d43df9fb6228ab9ec3482a528f1da6

SHA1
23b938e1caf2507ae797805f27ee66357ee0c53a

SHA256
d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

SHA512
30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc

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

Filesize
133KB

MD5
27d43df9fb6228ab9ec3482a528f1da6

SHA1
23b938e1caf2507ae797805f27ee66357ee0c53a

SHA256
d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

SHA512
30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc

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

Filesize
133KB

MD5
27d43df9fb6228ab9ec3482a528f1da6

SHA1
23b938e1caf2507ae797805f27ee66357ee0c53a

SHA256
d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

SHA512
30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc

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

Filesize
133KB

MD5
27d43df9fb6228ab9ec3482a528f1da6

SHA1
23b938e1caf2507ae797805f27ee66357ee0c53a

SHA256
d9048e7e5185fca63822a536674effaf47f434fd8bcd74018e5da09b5a7c1469

SHA512
30fb0f42d85b92102ac83dde0cadb0cdf1f19f2bafbb6174ce880aaf9c89a6dac201a3a461253543cac833fb12c5b10277bcf0c492eb2a0070e033b61ec632cc

Download Submit
memory/1020-149-0x00000204F40C0000-0x00000204F40D0000-memory.dmp

Filesize
64KB

Download
memory/1020-150-0x00000204F40C0000-0x00000204F40D0000-memory.dmp

Filesize
64KB

Download
memory/2136-133-0x0000000000A30000-0x0000000000A58000-memory.dmp

Filesize
160KB

Download
memory/2136-134-0x00000000010E0000-0x00000000010F0000-memory.dmp

Filesize
64KB

Download
memory/2136-184-0x00000000010E0000-0x00000000010F0000-memory.dmp

Filesize
64KB

Download
memory/4268-172-0x000001E159520000-0x000001E159530000-memory.dmp

Filesize
64KB

Download
memory/4268-174-0x000001E159520000-0x000001E159530000-memory.dmp

Filesize
64KB

Download
memory/4268-173-0x000001E159520000-0x000001E159530000-memory.dmp

Filesize
64KB

Download
memory/4828-144-0x000001950A3B0000-0x000001950A3D2000-memory.dmp

Filesize
136KB

Download
memory/4828-147-0x0000019522C30000-0x0000019522D9A000-memory.dmp

Filesize
1.4MB

Download