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 4 IoCs

resource	yara_rule
behavioral1/memory/2188-1-0x0000000000A90000-0x0000000000AA8000-memory.dmp	family_xworm
behavioral1/files/0x000d00000001225e-30.dat	family_xworm
behavioral1/memory/328-32-0x0000000000B40000-0x0000000000B58000-memory.dmp	family_xworm
behavioral1/memory/2092-34-0x00000000010A0000-0x00000000010B8000-memory.dmp	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
1880	powershell.exe
2872	powershell.exe
2636	powershell.exe
2256	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
328	hh.exe
2092	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-1-5-21-2703099537-420551529-3771253338-1000\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
2	0.tcp.ap.ngrok.io
10	0.tcp.ap.ngrok.io
19	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
1844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1880	powershell.exe
2872	powershell.exe
2636	powershell.exe
2256	powershell.exe
2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
Token: SeDebugPrivilege	1880	powershell.exe
Token: SeDebugPrivilege	2872	powershell.exe
Token: SeDebugPrivilege	2636	powershell.exe
Token: SeDebugPrivilege	2256	powershell.exe
Token: SeDebugPrivilege	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe
Token: SeDebugPrivilege	328	hh.exe
Token: SeDebugPrivilege	2092	hh.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 1880	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	30
PID 2188 wrote to memory of 1880	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	30
PID 2188 wrote to memory of 1880	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	30
PID 2188 wrote to memory of 2872	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	32
PID 2188 wrote to memory of 2872	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	32
PID 2188 wrote to memory of 2872	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	32
PID 2188 wrote to memory of 2636	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	34
PID 2188 wrote to memory of 2636	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	34
PID 2188 wrote to memory of 2636	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	34
PID 2188 wrote to memory of 2256	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	36
PID 2188 wrote to memory of 2256	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	36
PID 2188 wrote to memory of 2256	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	36
PID 2188 wrote to memory of 1844	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	38
PID 2188 wrote to memory of 1844	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	38
PID 2188 wrote to memory of 1844	2188	3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e.exe	38
PID 2096 wrote to memory of 328	2096	taskeng.exe	41
PID 2096 wrote to memory of 328	2096	taskeng.exe	41
PID 2096 wrote to memory of 328	2096	taskeng.exe	41
PID 2096 wrote to memory of 2092	2096	taskeng.exe	42
PID 2096 wrote to memory of 2092	2096	taskeng.exe	42
PID 2096 wrote to memory of 2092	2096	taskeng.exe	42

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⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2188
- 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:1880
- 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:2872
- 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:2636
- 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:2256
- 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:1844

C:\Windows\system32\taskeng.exe
taskeng.exe {D48F544A-C963-48B0-B9AC-7C68117CCBAB} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Users\Admin\AppData\Local\Temp\hh.exe
  C:\Users\Admin\AppData\Local\Temp\hh.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:328
- C:\Users\Admin\AppData\Local\Temp\hh.exe
  C:\Users\Admin\AppData\Local\Temp\hh.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2092

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
67KB

MD5
ecc0117da91937168d95f94fe2b28840

SHA1
f7c1c88b17173f9403536d0ca1fdfdbb108436e9

SHA256
3cc41a56daee0331512d04dd40e33676820a11615a0f808cb812d496b3fc3a8e

SHA512
b5ed48db56c494396f8002dd61dbc10ca38f3487a9117549b43d3c59a4e580b5e3dc084b62eb5e0b7fc82900bfab79168bf394bab0de76b6971f45f6c84dbb4c

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
490056b07e770b7eda933510eb2227ff

SHA1
66a105e7e1109dfcfb3766c3f983a760a2caa26b

SHA256
dc10499bfa07750c444fab02804bf5c6c822892759be15f67e85c54487144173

SHA512
7e9eefc64da223fbf8255193d6bd08a769616cc1700eb300084a0e8ea6c4383781a5094434a05f1dec986a6a96fb0e83378b1069fb5dd635fe95fd7f137f7947

Download Submit
memory/328-32-0x0000000000B40000-0x0000000000B58000-memory.dmp

Filesize
96KB

Download
memory/1880-6-0x0000000002900000-0x0000000002980000-memory.dmp

Filesize
512KB

Download
memory/1880-7-0x000000001B5D0000-0x000000001B8B2000-memory.dmp

Filesize
2.9MB

Download
memory/1880-8-0x0000000002000000-0x0000000002008000-memory.dmp

Filesize
32KB

Download
memory/2092-34-0x00000000010A0000-0x00000000010B8000-memory.dmp

Filesize
96KB

Download
memory/2188-28-0x000000001AAF0000-0x000000001AB70000-memory.dmp

Filesize
512KB

Download
memory/2188-27-0x000000001AAF0000-0x000000001AB70000-memory.dmp

Filesize
512KB

Download
memory/2188-0-0x000007FEF6853000-0x000007FEF6854000-memory.dmp

Filesize
4KB

Download
memory/2188-1-0x0000000000A90000-0x0000000000AA8000-memory.dmp

Filesize
96KB

Download
memory/2872-15-0x00000000022E0000-0x00000000022E8000-memory.dmp

Filesize
32KB

Download
memory/2872-14-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads