xworm | ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

General

Target

X.exe
Size

63KB
MD5

f16a3a537f873f3e7bd334d6cf93c525
SHA1

4fbedba1adbeda56019534b1bf74ff47ed814e61
SHA256

ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508
SHA512

032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a
SSDEEP

1536:zDJ1KwwGadRqckbTz0hdOWwdx6mf6ZOTLGuJi:p14GURjkbTnWvOTJJi

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7787

92.43.187.26:7787

Attributes

Install_directory
%Temp%
install_file
St.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2096-1-0x0000000000BD0000-0x0000000000BE6000-memory.dmp	family_xworm
behavioral1/files/0x000c0000000234d9-57.dat	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
1728	powershell.exe
3800	powershell.exe
4484	powershell.exe
452	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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	X.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 30 IoCs

pid	Process
3124	St.exe
4616	St.exe
1604	St.exe
1872	St.exe
2928	St.exe
1820	St.exe
3212	St.exe
2484	St.exe
1332	St.exe
2312	St.exe
1988	St.exe
1300	St.exe
5048	St.exe
1692	St.exe
4496	St.exe
4376	St.exe
940	St.exe
3144	St.exe
3996	St.exe
980	St.exe
5076	St.exe
4560	St.exe
1732	St.exe
1900	St.exe
1452	St.exe
4536	St.exe
4264	St.exe
4324	St.exe
4760	St.exe
3100	St.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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\St = "C:\\Users\\Admin\\AppData\\Local\\Temp\\St.exe"	X.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
2920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3800	powershell.exe
3800	powershell.exe
4484	powershell.exe
4484	powershell.exe
452	powershell.exe
452	powershell.exe
1728	powershell.exe
1728	powershell.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	X.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	4484	powershell.exe
Token: SeDebugPrivilege	452	powershell.exe
Token: SeDebugPrivilege	1728	powershell.exe
Token: SeDebugPrivilege	2096	X.exe
Token: SeDebugPrivilege	3124	St.exe
Token: SeDebugPrivilege	4616	St.exe
Token: SeDebugPrivilege	1604	St.exe
Token: SeDebugPrivilege	1872	St.exe
Token: SeDebugPrivilege	2928	St.exe
Token: SeDebugPrivilege	1820	St.exe
Token: SeDebugPrivilege	3212	St.exe
Token: SeDebugPrivilege	2484	St.exe
Token: SeDebugPrivilege	1332	St.exe
Token: SeDebugPrivilege	2312	St.exe
Token: SeDebugPrivilege	1988	St.exe
Token: SeDebugPrivilege	1300	St.exe
Token: SeDebugPrivilege	5048	St.exe
Token: SeDebugPrivilege	1692	St.exe
Token: SeDebugPrivilege	4496	St.exe
Token: SeDebugPrivilege	4376	St.exe
Token: SeDebugPrivilege	940	St.exe
Token: SeDebugPrivilege	3996	St.exe
Token: SeDebugPrivilege	980	St.exe
Token: SeDebugPrivilege	5076	St.exe
Token: SeDebugPrivilege	4560	St.exe
Token: SeDebugPrivilege	1732	St.exe
Token: SeDebugPrivilege	1900	St.exe
Token: SeDebugPrivilege	1452	St.exe
Token: SeDebugPrivilege	4536	St.exe
Token: SeDebugPrivilege	4264	St.exe
Token: SeDebugPrivilege	4324	St.exe
Token: SeDebugPrivilege	4760	St.exe
Token: SeDebugPrivilege	3100	St.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 3800	2096	X.exe	86
PID 2096 wrote to memory of 3800	2096	X.exe	86
PID 2096 wrote to memory of 4484	2096	X.exe	88
PID 2096 wrote to memory of 4484	2096	X.exe	88
PID 2096 wrote to memory of 452	2096	X.exe	92
PID 2096 wrote to memory of 452	2096	X.exe	92
PID 2096 wrote to memory of 1728	2096	X.exe	94
PID 2096 wrote to memory of 1728	2096	X.exe	94
PID 2096 wrote to memory of 2920	2096	X.exe	98
PID 2096 wrote to memory of 2920	2096	X.exe	98

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\X.exe
"C:\Users\Admin\AppData\Local\Temp\X.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096
- 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\X.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3800
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'X.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4484
- 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\St.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:452
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'St.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1728
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "St" /tr "C:\Users\Admin\AppData\Local\Temp\St.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2920

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3124

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4616

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1604

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1872

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2928

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1820

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3212

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2484

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1332

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2312

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1988

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1300

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5048

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1692

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4496

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4376

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:940

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
PID:3144

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3996

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:980

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5076

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4560

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1900

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1452

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4536

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4264

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4324

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4760

C:\Users\Admin\AppData\Local\Temp\St.exe
C:\Users\Admin\AppData\Local\Temp\St.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3100

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\St.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
ba169f4dcbbf147fe78ef0061a95e83b

SHA1
92a571a6eef49fff666e0f62a3545bcd1cdcda67

SHA256
5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

SHA512
8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

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

Filesize
63KB

MD5
f16a3a537f873f3e7bd334d6cf93c525

SHA1
4fbedba1adbeda56019534b1bf74ff47ed814e61

SHA256
ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

SHA512
032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_52kgv31p.321.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2096-56-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/2096-0-0x00007FFC0AE33000-0x00007FFC0AE35000-memory.dmp

Filesize
8KB

Download
memory/2096-60-0x00007FFC0AE33000-0x00007FFC0AE35000-memory.dmp

Filesize
8KB

Download
memory/2096-61-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/2096-1-0x0000000000BD0000-0x0000000000BE6000-memory.dmp

Filesize
88KB

Download
memory/3800-17-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/3800-13-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/3800-14-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/3800-12-0x00007FFC0AE30000-0x00007FFC0B8F1000-memory.dmp

Filesize
10.8MB

Download
memory/3800-2-0x00000151718B0000-0x00000151718D2000-memory.dmp

Filesize
136KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads