xworm | c0d08afc1dbcf3572160019c5074e5c58010205d158c9b2da1b2b7e86a465321

General

Target

0x000800000001227e-5.exe
Size

73KB
MD5

06df71794e08473f20b46aa17c389269
SHA1

149aaa1816a59e05d55806ec88adb75e7ccf079a
SHA256

c0d08afc1dbcf3572160019c5074e5c58010205d158c9b2da1b2b7e86a465321
SHA512

f772aab2f848914e19bb6061a52fdaf3da2ccd5d3baabd6ed99c52edc73cdafc6fc0bbcd91e9cb17083da51bcba1f4f5b8a5005531141ce0c04d414aa0b018b0
SSDEEP

1536:HaHqQf1yZabIdVLqYgIHW+bpPSsS+CYyvOXOTuQ8EsL3b:6KQffIqvp+bB25YyvOeTuQ8E+b

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

nohicsq.localto.net:3985

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2068-1-0x0000000000D40000-0x0000000000D58000-memory.dmp	family_xworm
behavioral1/files/0x0063000000011c27-7.dat	family_xworm
behavioral1/memory/2592-9-0x0000000000BD0000-0x0000000000BE8000-memory.dmp	family_xworm
behavioral1/memory/1372-14-0x0000000000D20000-0x0000000000D38000-memory.dmp	family_xworm
behavioral1/memory/1156-16-0x0000000001170000-0x0000000001188000-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\FluxusV1.lnk	0x000800000001227e-5.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\FluxusV1.lnk	0x000800000001227e-5.exe

Executes dropped EXE 3 IoCs

pid	Process
2592	FluxusV1.2
1372	FluxusV1.2
1156	FluxusV1.2

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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\FluxusV1 = "C:\\Users\\Admin\\AppData\\Roaming\\FluxusV1.2"	0x000800000001227e-5.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
2832	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2068	0x000800000001227e-5.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2068	0x000800000001227e-5.exe
Token: SeDebugPrivilege	2068	0x000800000001227e-5.exe
Token: SeDebugPrivilege	2592	FluxusV1.2
Token: SeDebugPrivilege	1372	FluxusV1.2
Token: SeDebugPrivilege	1156	FluxusV1.2

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2068	0x000800000001227e-5.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2832	2068	0x000800000001227e-5.exe	30
PID 2068 wrote to memory of 2832	2068	0x000800000001227e-5.exe	30
PID 2068 wrote to memory of 2832	2068	0x000800000001227e-5.exe	30
PID 2692 wrote to memory of 2592	2692	taskeng.exe	33
PID 2692 wrote to memory of 2592	2692	taskeng.exe	33
PID 2692 wrote to memory of 2592	2692	taskeng.exe	33
PID 2692 wrote to memory of 1372	2692	taskeng.exe	35
PID 2692 wrote to memory of 1372	2692	taskeng.exe	35
PID 2692 wrote to memory of 1372	2692	taskeng.exe	35
PID 2692 wrote to memory of 1156	2692	taskeng.exe	36
PID 2692 wrote to memory of 1156	2692	taskeng.exe	36
PID 2692 wrote to memory of 1156	2692	taskeng.exe	36

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\0x000800000001227e-5.exe
"C:\Users\Admin\AppData\Local\Temp\0x000800000001227e-5.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "FluxusV1" /tr "C:\Users\Admin\AppData\Roaming\FluxusV1.2"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2832

C:\Windows\system32\taskeng.exe
taskeng.exe {5A744D2B-5A29-4AF7-A0A3-5FA384013FD1} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Users\Admin\AppData\Roaming\FluxusV1.2
  C:\Users\Admin\AppData\Roaming\FluxusV1.2
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2592
- C:\Users\Admin\AppData\Roaming\FluxusV1.2
  C:\Users\Admin\AppData\Roaming\FluxusV1.2
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1372
- C:\Users\Admin\AppData\Roaming\FluxusV1.2
  C:\Users\Admin\AppData\Roaming\FluxusV1.2
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\FluxusV1.2

Filesize
73KB

MD5
06df71794e08473f20b46aa17c389269

SHA1
149aaa1816a59e05d55806ec88adb75e7ccf079a

SHA256
c0d08afc1dbcf3572160019c5074e5c58010205d158c9b2da1b2b7e86a465321

SHA512
f772aab2f848914e19bb6061a52fdaf3da2ccd5d3baabd6ed99c52edc73cdafc6fc0bbcd91e9cb17083da51bcba1f4f5b8a5005531141ce0c04d414aa0b018b0

Download Submit
memory/1156-16-0x0000000001170000-0x0000000001188000-memory.dmp

Filesize
96KB

Download
memory/1372-14-0x0000000000D20000-0x0000000000D38000-memory.dmp

Filesize
96KB

Download
memory/2068-0-0x000007FEF66F3000-0x000007FEF66F4000-memory.dmp

Filesize
4KB

Download
memory/2068-1-0x0000000000D40000-0x0000000000D58000-memory.dmp

Filesize
96KB

Download
memory/2068-5-0x000007FEF66F0000-0x000007FEF70DC000-memory.dmp

Filesize
9.9MB

Download
memory/2068-10-0x000007FEF66F3000-0x000007FEF66F4000-memory.dmp

Filesize
4KB

Download
memory/2068-11-0x000007FEF66F0000-0x000007FEF70DC000-memory.dmp

Filesize
9.9MB

Download
memory/2592-9-0x0000000000BD0000-0x0000000000BE8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads