xworm | 94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7

Analysis

max time kernel
1798s
max time network
1799s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
30/05/2024, 20:08

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
XClient.exe
Size 59KB
Sample240530-ywvecaha9z
SHA256 94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7
MD5 d172c0a4ae3e8cef6a0a910bde62e195
SHA1 51139fc633fe81a66c8ed55081f92ec5256bd0bd
SHA512 d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467
SSDEEP 1536:9vv68xQQodoW8YTK6uDkbrfSVxwXSOqQ+k:1vjWQoGJYTK6CkbrfHSOqQ+k
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

length-desert.gl.at.ply.gg:58023
%AppData%:9

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 16 IoCs

resource	yara_rule
behavioral2/memory/2232-1-0x00000000009F0000-0x0000000000A06000-memory.dmp	family_xworm
behavioral2/files/0x000f00000001214d-9.dat	family_xworm
behavioral2/memory/2620-11-0x00000000012D0000-0x00000000012E6000-memory.dmp	family_xworm
behavioral2/memory/2188-17-0x0000000000310000-0x0000000000326000-memory.dmp	family_xworm
behavioral2/memory/1624-19-0x0000000000870000-0x0000000000886000-memory.dmp	family_xworm
behavioral2/memory/2636-21-0x0000000001230000-0x0000000001246000-memory.dmp	family_xworm
behavioral2/memory/1824-23-0x00000000001C0000-0x00000000001D6000-memory.dmp	family_xworm
behavioral2/memory/1848-25-0x00000000010D0000-0x00000000010E6000-memory.dmp	family_xworm
behavioral2/memory/2236-28-0x0000000000210000-0x0000000000226000-memory.dmp	family_xworm
behavioral2/memory/1608-30-0x0000000001070000-0x0000000001086000-memory.dmp	family_xworm
behavioral2/memory/1988-32-0x0000000001320000-0x0000000001336000-memory.dmp	family_xworm
behavioral2/memory/1532-38-0x0000000000040000-0x0000000000056000-memory.dmp	family_xworm
behavioral2/memory/2400-40-0x0000000000C90000-0x0000000000CA6000-memory.dmp	family_xworm
behavioral2/memory/2104-42-0x0000000000390000-0x00000000003A6000-memory.dmp	family_xworm
behavioral2/memory/2744-44-0x0000000001210000-0x0000000001226000-memory.dmp	family_xworm
behavioral2/memory/1784-47-0x00000000013D0000-0x00000000013E6000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9.lnk	XClient.exe

Executes dropped EXE 30 IoCs

pid	Process
2620	9
1356	9
2828	9
2896	9
2188	9
1624	9
2636	9
1824	9
1848	9
3048	9
2236	9
1608	9
1988	9
1424	9
2828	9
1692	9
1744	9
1532	9
2400	9
2104	9
2744	9
2472	9
1784	9
2152	9
1568	9
2432	9
1824	9
2748	9
652	9
1112	9

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-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\9 = "C:\\Users\\Admin\\AppData\\Roaming\\9"	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 use of AdjustPrivilegeToken 32 IoCs

description	pid	Process
Token: SeDebugPrivilege	2232	XClient.exe
Token: SeDebugPrivilege	2232	XClient.exe
Token: SeDebugPrivilege	2620	9
Token: SeDebugPrivilege	1356	9
Token: SeDebugPrivilege	2828	9
Token: SeDebugPrivilege	2896	9
Token: SeDebugPrivilege	2188	9
Token: SeDebugPrivilege	1624	9
Token: SeDebugPrivilege	2636	9
Token: SeDebugPrivilege	1824	9
Token: SeDebugPrivilege	1848	9
Token: SeDebugPrivilege	3048	9
Token: SeDebugPrivilege	2236	9
Token: SeDebugPrivilege	1608	9
Token: SeDebugPrivilege	1988	9
Token: SeDebugPrivilege	1424	9
Token: SeDebugPrivilege	2828	9
Token: SeDebugPrivilege	1692	9
Token: SeDebugPrivilege	1744	9
Token: SeDebugPrivilege	1532	9
Token: SeDebugPrivilege	2400	9
Token: SeDebugPrivilege	2104	9
Token: SeDebugPrivilege	2744	9
Token: SeDebugPrivilege	2472	9
Token: SeDebugPrivilege	1784	9
Token: SeDebugPrivilege	2152	9
Token: SeDebugPrivilege	1568	9
Token: SeDebugPrivilege	2432	9
Token: SeDebugPrivilege	1824	9
Token: SeDebugPrivilege	2748	9
Token: SeDebugPrivilege	652	9
Token: SeDebugPrivilege	1112	9

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 2944	2232	XClient.exe	28
PID 2232 wrote to memory of 2944	2232	XClient.exe	28
PID 2232 wrote to memory of 2944	2232	XClient.exe	28
PID 2684 wrote to memory of 2620	2684	taskeng.exe	31
PID 2684 wrote to memory of 2620	2684	taskeng.exe	31
PID 2684 wrote to memory of 2620	2684	taskeng.exe	31
PID 2684 wrote to memory of 1356	2684	taskeng.exe	34
PID 2684 wrote to memory of 1356	2684	taskeng.exe	34
PID 2684 wrote to memory of 1356	2684	taskeng.exe	34
PID 2684 wrote to memory of 2828	2684	taskeng.exe	35
PID 2684 wrote to memory of 2828	2684	taskeng.exe	35
PID 2684 wrote to memory of 2828	2684	taskeng.exe	35
PID 2684 wrote to memory of 2896	2684	taskeng.exe	36
PID 2684 wrote to memory of 2896	2684	taskeng.exe	36
PID 2684 wrote to memory of 2896	2684	taskeng.exe	36
PID 2684 wrote to memory of 2188	2684	taskeng.exe	37
PID 2684 wrote to memory of 2188	2684	taskeng.exe	37
PID 2684 wrote to memory of 2188	2684	taskeng.exe	37
PID 2684 wrote to memory of 1624	2684	taskeng.exe	38
PID 2684 wrote to memory of 1624	2684	taskeng.exe	38
PID 2684 wrote to memory of 1624	2684	taskeng.exe	38
PID 2684 wrote to memory of 2636	2684	taskeng.exe	39
PID 2684 wrote to memory of 2636	2684	taskeng.exe	39
PID 2684 wrote to memory of 2636	2684	taskeng.exe	39
PID 2684 wrote to memory of 1824	2684	taskeng.exe	40
PID 2684 wrote to memory of 1824	2684	taskeng.exe	40
PID 2684 wrote to memory of 1824	2684	taskeng.exe	40
PID 2684 wrote to memory of 1848	2684	taskeng.exe	41
PID 2684 wrote to memory of 1848	2684	taskeng.exe	41
PID 2684 wrote to memory of 1848	2684	taskeng.exe	41
PID 2684 wrote to memory of 3048	2684	taskeng.exe	42
PID 2684 wrote to memory of 3048	2684	taskeng.exe	42
PID 2684 wrote to memory of 3048	2684	taskeng.exe	42
PID 2684 wrote to memory of 2236	2684	taskeng.exe	43
PID 2684 wrote to memory of 2236	2684	taskeng.exe	43
PID 2684 wrote to memory of 2236	2684	taskeng.exe	43
PID 2684 wrote to memory of 1608	2684	taskeng.exe	44
PID 2684 wrote to memory of 1608	2684	taskeng.exe	44
PID 2684 wrote to memory of 1608	2684	taskeng.exe	44
PID 2684 wrote to memory of 1988	2684	taskeng.exe	45
PID 2684 wrote to memory of 1988	2684	taskeng.exe	45
PID 2684 wrote to memory of 1988	2684	taskeng.exe	45
PID 2684 wrote to memory of 1424	2684	taskeng.exe	46
PID 2684 wrote to memory of 1424	2684	taskeng.exe	46
PID 2684 wrote to memory of 1424	2684	taskeng.exe	46
PID 2684 wrote to memory of 2828	2684	taskeng.exe	47
PID 2684 wrote to memory of 2828	2684	taskeng.exe	47
PID 2684 wrote to memory of 2828	2684	taskeng.exe	47
PID 2684 wrote to memory of 1692	2684	taskeng.exe	48
PID 2684 wrote to memory of 1692	2684	taskeng.exe	48
PID 2684 wrote to memory of 1692	2684	taskeng.exe	48
PID 2684 wrote to memory of 1744	2684	taskeng.exe	49
PID 2684 wrote to memory of 1744	2684	taskeng.exe	49
PID 2684 wrote to memory of 1744	2684	taskeng.exe	49
PID 2684 wrote to memory of 1532	2684	taskeng.exe	50
PID 2684 wrote to memory of 1532	2684	taskeng.exe	50
PID 2684 wrote to memory of 1532	2684	taskeng.exe	50
PID 2684 wrote to memory of 2400	2684	taskeng.exe	51
PID 2684 wrote to memory of 2400	2684	taskeng.exe	51
PID 2684 wrote to memory of 2400	2684	taskeng.exe	51
PID 2684 wrote to memory of 2104	2684	taskeng.exe	52
PID 2684 wrote to memory of 2104	2684	taskeng.exe	52
PID 2684 wrote to memory of 2104	2684	taskeng.exe	52
PID 2684 wrote to memory of 2744	2684	taskeng.exe	53

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
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "9" /tr "C:\Users\Admin\AppData\Roaming\9"
  2⤵
  - Creates scheduled task(s)
  PID:2944

C:\Windows\system32\taskeng.exe
taskeng.exe {1EFC4B67-358A-443C-A3B5-9BAC7CB0DA82} S-1-5-21-3691908287-3775019229-3534252667-1000:UOTHCPHQ\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2620
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1356
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2896
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2188
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1624
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2636
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1824
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1848
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3048
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2236
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1608
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1988
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1424
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2828
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1744
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1532
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2400
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2104
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2744
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2472
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1784
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2152
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1568
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2432
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1824
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2748
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:652
- C:\Users\Admin\AppData\Roaming\9
  C:\Users\Admin\AppData\Roaming\9
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

Path C:\Users\Admin\AppData\Roaming\9
Size 59KB
SHA256 94b65da2b5cc3728547f892a46e9c48c5d54477d10ea8e210304593acd3568e7
MD5 d172c0a4ae3e8cef6a0a910bde62e195
SHA1 51139fc633fe81a66c8ed55081f92ec5256bd0bd
SHA512 d82c930a42fd623aeee51007453d201e96110b546f1fb34080fc6d4c1488d71b3828f5f1833d347993444e4d332aa00fbb7b8922fce676d220375470ad0fa467
SSDEEP 1536:9vv68xQQodoW8YTK6uDkbrfSVxwXSOqQ+k:1vjWQoGJYTK6CkbrfHSOqQ+k
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1532-38-0x0000000000040000-0x0000000000056000-memory.dmp

Download

memory/1608-30-0x0000000001070000-0x0000000001086000-memory.dmp

Download

memory/1624-19-0x0000000000870000-0x0000000000886000-memory.dmp

Download

memory/1784-47-0x00000000013D0000-0x00000000013E6000-memory.dmp

Download

memory/1824-23-0x00000000001C0000-0x00000000001D6000-memory.dmp

Download

memory/1848-25-0x00000000010D0000-0x00000000010E6000-memory.dmp

Download

memory/1988-32-0x0000000001320000-0x0000000001336000-memory.dmp

Download

memory/2104-42-0x0000000000390000-0x00000000003A6000-memory.dmp

Download

memory/2188-17-0x0000000000310000-0x0000000000326000-memory.dmp

Download

memory/2232-5-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

Download

memory/2232-7-0x000007FEF52E0000-0x000007FEF5CCC000-memory.dmp

Download

memory/2232-1-0x00000000009F0000-0x0000000000A06000-memory.dmp

Download

memory/2232-0-0x000007FEF52E3000-0x000007FEF52E4000-memory.dmp

Download

memory/2232-6-0x000007FEF52E3000-0x000007FEF52E4000-memory.dmp

Download

memory/2236-28-0x0000000000210000-0x0000000000226000-memory.dmp

Download

memory/2400-40-0x0000000000C90000-0x0000000000CA6000-memory.dmp

Download

memory/2620-11-0x00000000012D0000-0x00000000012E6000-memory.dmp

Download

memory/2636-21-0x0000000001230000-0x0000000001246000-memory.dmp

Download

memory/2744-44-0x0000000001210000-0x0000000001226000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads