xworm | 3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e

General

Target

3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
Size

67KB
MD5

ecc0117da91937168d95f94fe2b28840
SHA1

f7c1c88b17173f9403536d0ca1fdfdbb108436e9
SHA256

3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e
SHA512

b5ed48db56c494396f8002dd61dbc10ca38f3487a9117549b43d3c59a4e580b5e3dc084b62eb5e0b7fc82900bfab79168bf394bab0de76b6971f45f6c84dbb4c
SSDEEP

1536:RbCAX3g4GePVcAye7hC+bu/uwdVedefBRfa6GMO9RDc:JLg+cAX7hC+bu/9mauMOfQ

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

0.tcp.ap.ngrok.io:12725

Attributes

Install_directory
%Temp%
install_file
hh.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4240-1-0x0000000000F80000-0x0000000000F98000-memory.dmp	family_xworm
behavioral2/files/0x0011000000023b61-58.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
3108	powershell.exe
3848	powershell.exe
5068	powershell.exe
2204	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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Executes dropped EXE 2 IoCs

pid	Process
4988	hh.exe
2084	hh.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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\hh = "C:\\Users\\Admin\\AppData\\Local\\Temp\\hh.exe"	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
19	0.tcp.ap.ngrok.io
41	0.tcp.ap.ngrok.io
54	0.tcp.ap.ngrok.io

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
4592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3108	powershell.exe
3108	powershell.exe
3848	powershell.exe
3848	powershell.exe
5068	powershell.exe
5068	powershell.exe
2204	powershell.exe
2204	powershell.exe
4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
Token: SeDebugPrivilege	3108	powershell.exe
Token: SeDebugPrivilege	3848	powershell.exe
Token: SeDebugPrivilege	5068	powershell.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
Token: SeDebugPrivilege	4988	hh.exe
Token: SeDebugPrivilege	2084	hh.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 3108	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	90
PID 4240 wrote to memory of 3108	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	90
PID 4240 wrote to memory of 3848	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	95
PID 4240 wrote to memory of 3848	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	95
PID 4240 wrote to memory of 5068	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	99
PID 4240 wrote to memory of 5068	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	99
PID 4240 wrote to memory of 2204	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	101
PID 4240 wrote to memory of 2204	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	101
PID 4240 wrote to memory of 4592	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	103
PID 4240 wrote to memory of 4592	4240	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	103

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\3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
"C:\Users\Admin\AppData\Local\Temp\3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4240
- 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\3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3108
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3848
- 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\hh.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5068
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'hh.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2204
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "hh" /tr "C:\Users\Admin\AppData\Local\Temp\hh.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4592

C:\Users\Admin\AppData\Local\Temp\hh.exe
C:\Users\Admin\AppData\Local\Temp\hh.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4988

C:\Users\Admin\AppData\Local\Temp\hh.exe
C:\Users\Admin\AppData\Local\Temp\hh.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2084

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\hh.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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
0026cdd9bbc34b9de2447c0eb04c14b5

SHA1
ab7713fe5fbbb23031937dd1dc7d0fa238884ad4

SHA256
cf5a1c42641a83dd41fe89923591962b7ad189006342c7a67669239688f84a2d

SHA512
62aab723672e2731946f4bbf6a3d92609ff94384e324f3c50e803095529baf848ce2cd37219a059ced4c3f559e598bd9b900b9dd8aa0657adca6d845127797fe

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dyya2de1.ve3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
67KB

MD5
ecc0117da91937168d95f94fe2b28840

SHA1
f7c1c88b17173f9403536d0ca1fdfdbb108436e9

SHA256
3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e

SHA512
b5ed48db56c494396f8002dd61dbc10ca38f3487a9117549b43d3c59a4e580b5e3dc084b62eb5e0b7fc82900bfab79168bf394bab0de76b6971f45f6c84dbb4c

Download Submit
memory/2204-53-0x00000239C2630000-0x00000239C284C000-memory.dmp

Filesize
2.1MB

Download
memory/3108-12-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/3108-11-0x000001E36FFB0000-0x000001E36FFD2000-memory.dmp

Filesize
136KB

Download
memory/3108-13-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/3108-17-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/3108-14-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/3848-30-0x000001FA736F0000-0x000001FA7390C000-memory.dmp

Filesize
2.1MB

Download
memory/4240-0-0x00007FF867DA3000-0x00007FF867DA5000-memory.dmp

Filesize
8KB

Download
memory/4240-55-0x00007FF867DA3000-0x00007FF867DA5000-memory.dmp

Filesize
8KB

Download
memory/4240-56-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/4240-57-0x00007FF867DA0000-0x00007FF868861000-memory.dmp

Filesize
10.8MB

Download
memory/4240-1-0x0000000000F80000-0x0000000000F98000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads