xworm | 709b859894e9d3a4cfe0c194738ca60a5747a0ace6b5dc8786c28825f257b123

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14-11-2024 03:39

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General

Target

Xevo-bootstrapper.exe
Size

866KB
MD5

ced772286eabb38ef955a3df63979754
SHA1

eea0fc2849d82b213fe603de8c5b452e7714b5b3
SHA256

709b859894e9d3a4cfe0c194738ca60a5747a0ace6b5dc8786c28825f257b123
SHA512

a3fb03ef9a642d4d024d7979a98cf3d34670988648e37c0ce93376dcec59aca3121e24d0e46d81bcab444ce7d9d6e4ba43004146bcc43246793696d7628d51bd
SSDEEP

24576:QAFbBbDZg8bjv4zk1iMuGaHknfPBAuGY+DsWZya:xPZ2vMuGasfPBeCWZ7

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Cactus-33152.portmap.host:33152

Attributes

Install_directory
%AppData%
install_file
Teams.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000016d46-10.dat	family_xworm
behavioral1/memory/2504-14-0x00000000010E0000-0x00000000010F4000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
1576	Bootstrapper.exe
2504	XClient.exe
1164	Process not Found

Loads dropped DLL 6 IoCs

pid	Process
840	Xevo-bootstrapper.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.exe
2012	WerFault.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\Teams = "C:\\Users\\Admin\\AppData\\Roaming\\Teams.exe"	XClient.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2684	timeout.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2824	ipconfig.exe

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
2888	schtasks.exe

Suspicious use of AdjustPrivilegeToken 43 IoCs

description	pid	Process
Token: SeDebugPrivilege	2504	XClient.exe
Token: SeDebugPrivilege	2504	XClient.exe
Token: SeIncreaseQuotaPrivilege	2760	WMIC.exe
Token: SeSecurityPrivilege	2760	WMIC.exe
Token: SeTakeOwnershipPrivilege	2760	WMIC.exe
Token: SeLoadDriverPrivilege	2760	WMIC.exe
Token: SeSystemProfilePrivilege	2760	WMIC.exe
Token: SeSystemtimePrivilege	2760	WMIC.exe
Token: SeProfSingleProcessPrivilege	2760	WMIC.exe
Token: SeIncBasePriorityPrivilege	2760	WMIC.exe
Token: SeCreatePagefilePrivilege	2760	WMIC.exe
Token: SeBackupPrivilege	2760	WMIC.exe
Token: SeRestorePrivilege	2760	WMIC.exe
Token: SeShutdownPrivilege	2760	WMIC.exe
Token: SeDebugPrivilege	2760	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2760	WMIC.exe
Token: SeRemoteShutdownPrivilege	2760	WMIC.exe
Token: SeUndockPrivilege	2760	WMIC.exe
Token: SeManageVolumePrivilege	2760	WMIC.exe
Token: 33	2760	WMIC.exe
Token: 34	2760	WMIC.exe
Token: 35	2760	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2760	WMIC.exe
Token: SeSecurityPrivilege	2760	WMIC.exe
Token: SeTakeOwnershipPrivilege	2760	WMIC.exe
Token: SeLoadDriverPrivilege	2760	WMIC.exe
Token: SeSystemProfilePrivilege	2760	WMIC.exe
Token: SeSystemtimePrivilege	2760	WMIC.exe
Token: SeProfSingleProcessPrivilege	2760	WMIC.exe
Token: SeIncBasePriorityPrivilege	2760	WMIC.exe
Token: SeCreatePagefilePrivilege	2760	WMIC.exe
Token: SeBackupPrivilege	2760	WMIC.exe
Token: SeRestorePrivilege	2760	WMIC.exe
Token: SeShutdownPrivilege	2760	WMIC.exe
Token: SeDebugPrivilege	2760	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2760	WMIC.exe
Token: SeRemoteShutdownPrivilege	2760	WMIC.exe
Token: SeUndockPrivilege	2760	WMIC.exe
Token: SeManageVolumePrivilege	2760	WMIC.exe
Token: 33	2760	WMIC.exe
Token: 34	2760	WMIC.exe
Token: 35	2760	WMIC.exe
Token: SeDebugPrivilege	1576	Bootstrapper.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 1576	840	Xevo-bootstrapper.exe	31
PID 840 wrote to memory of 1576	840	Xevo-bootstrapper.exe	31
PID 840 wrote to memory of 1576	840	Xevo-bootstrapper.exe	31
PID 840 wrote to memory of 2504	840	Xevo-bootstrapper.exe	33
PID 840 wrote to memory of 2504	840	Xevo-bootstrapper.exe	33
PID 840 wrote to memory of 2504	840	Xevo-bootstrapper.exe	33
PID 1576 wrote to memory of 2716	1576	Bootstrapper.exe	34
PID 1576 wrote to memory of 2716	1576	Bootstrapper.exe	34
PID 1576 wrote to memory of 2716	1576	Bootstrapper.exe	34
PID 2716 wrote to memory of 2824	2716	cmd.exe	36
PID 2716 wrote to memory of 2824	2716	cmd.exe	36
PID 2716 wrote to memory of 2824	2716	cmd.exe	36
PID 2504 wrote to memory of 2888	2504	XClient.exe	37
PID 2504 wrote to memory of 2888	2504	XClient.exe	37
PID 2504 wrote to memory of 2888	2504	XClient.exe	37
PID 1576 wrote to memory of 2700	1576	Bootstrapper.exe	39
PID 1576 wrote to memory of 2700	1576	Bootstrapper.exe	39
PID 1576 wrote to memory of 2700	1576	Bootstrapper.exe	39
PID 2700 wrote to memory of 2760	2700	cmd.exe	41
PID 2700 wrote to memory of 2760	2700	cmd.exe	41
PID 2700 wrote to memory of 2760	2700	cmd.exe	41
PID 1576 wrote to memory of 2012	1576	Bootstrapper.exe	43
PID 1576 wrote to memory of 2012	1576	Bootstrapper.exe	43
PID 1576 wrote to memory of 2012	1576	Bootstrapper.exe	43
PID 2504 wrote to memory of 1264	2504	XClient.exe	44
PID 2504 wrote to memory of 1264	2504	XClient.exe	44
PID 2504 wrote to memory of 1264	2504	XClient.exe	44
PID 2504 wrote to memory of 2944	2504	XClient.exe	46
PID 2504 wrote to memory of 2944	2504	XClient.exe	46
PID 2504 wrote to memory of 2944	2504	XClient.exe	46
PID 2944 wrote to memory of 2684	2944	cmd.exe	48
PID 2944 wrote to memory of 2684	2944	cmd.exe	48
PID 2944 wrote to memory of 2684	2944	cmd.exe	48

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\Xevo-bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Xevo-bootstrapper.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:840
- C:\Users\Admin\AppData\Roaming\Bootstrapper.exe
  "C:\Users\Admin\AppData\Roaming\Bootstrapper.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1576
- - C:\Windows\system32\cmd.exe
    "cmd" /c ipconfig /all
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2716
  - - C:\Windows\system32\ipconfig.exe
      ipconfig /all
      4⤵
      Gathers network information
      PID:2824
- - C:\Windows\system32\cmd.exe
    "cmd" /c wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2700
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("1.1.1.1", "1.0.0.1")
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2760
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 1576 -s 1124
    3⤵
    - Loads dropped DLL
    PID:2012
- C:\Users\Admin\AppData\Roaming\XClient.exe
  "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2504
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Teams" /tr "C:\Users\Admin\AppData\Roaming\Teams.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2888
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /delete /f /tn "Teams"
    3⤵
    PID:1264
- - C:\Windows\system32\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp67E7.tmp.bat""
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2944
  - - C:\Windows\system32\timeout.exe
      timeout 3
      4⤵
      Delays execution with timeout.exe
      PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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\Temp\tmp67E7.tmp.bat

Filesize
156B

MD5
1399737184c78beb73e1c82317957242

SHA1
b2a578984951363469042a3d18d8734ccb725d76

SHA256
a5e4c908d9920150f5f9e41d5e48e9ff49affa94d49af74a6ac12e9ad8226208

SHA512
502999afc3d7f9d5827d7e08dde503c11c75ca21288b7e391f6125f49455a2f1f9a2e004c31a2f38f28395ef05a21c6b55ae8bfc0f905765172e93e4d211f88c

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

Filesize
56KB

MD5
fae36591a84f55e92cb352a4324cb180

SHA1
64206e9b6e16e2e55db3e66f19024d31d87a0ad9

SHA256
82549e9e27a539e6bfd29c015682f93c7aac81f35035146dd64312783e7a8008

SHA512
520da9816801b36e5cefce3e64fd2ee8f34483a5298d60584224b3371f0b473d5402c19889067d2188aaf3db4b4382936b96509ab0eb34c7669676cae2c12f4f

Download Submit
\Users\Admin\AppData\Roaming\Bootstrapper.exe

Filesize
800KB

MD5
2a4dcf20b82896be94eb538260c5fb93

SHA1
21f232c2fd8132f8677e53258562ad98b455e679

SHA256
ebbcb489171abfcfce56554dbaeacd22a15838391cbc7c756db02995129def5a

SHA512
4f1164b2312fb94b7030d6eb6aa9f3502912ffa33505f156443570fc964bfd3bb21ded3cf84092054e07346d2dce83a0907ba33f4ba39ad3fe7a78e836efe288

Download Submit
memory/840-0-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

Filesize
4KB

Download
memory/840-1-0x0000000000010000-0x00000000000EE000-memory.dmp

Filesize
888KB

Download
memory/1576-13-0x0000000000CB0000-0x0000000000D7E000-memory.dmp

Filesize
824KB

Download
memory/2504-14-0x00000000010E0000-0x00000000010F4000-memory.dmp

Filesize
80KB

Download
memory/2504-15-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2504-21-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download
memory/2504-37-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads