xenorat | 64c3b598e7c704340897c8c69145fcdd4eb80bbfcfa6afe38cebf91db523ecdc

General

Target

Windows CL.exe
Size

45KB
MD5

79bb9482fad6bd2663b4a57c2924789f
SHA1

4c8ac5a4e9812aa3a3f0096b3f0460145c8897eb
SHA256

64c3b598e7c704340897c8c69145fcdd4eb80bbfcfa6afe38cebf91db523ecdc
SHA512

d2e04f029293b1d0f9157e2e18ae325907d3305f1c7574b968738688cc3b8dd919cc8cd69191408e051aff3b3a1a74fa776192e95bdbeafad1e08b1a2096946e
SSDEEP

768:wdhO/poiiUcjlJInTAjH9Xqk5nWEZ5SbTDaGWI7CPW5T:iw+jjgnEjH9XqcnW85SbTfWI7

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

198.44.133.84

Mutex

Attributes

delay
5000
install_path
appdata
port
13579
startup_name
Windows CL

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4892-1-0x00000000000C0000-0x00000000000D2000-memory.dmp	family_xenorat
behavioral2/files/0x0008000000023c8c-6.dat	family_xenorat

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat
Xenorat family
xenorat

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Windows CL.exe

Executes dropped EXE 1 IoCs

pid	Process
5096	Windows CL.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows CL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Windows CL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
3660	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 5096	4892	Windows CL.exe	83
PID 4892 wrote to memory of 5096	4892	Windows CL.exe	83
PID 4892 wrote to memory of 5096	4892	Windows CL.exe	83
PID 5096 wrote to memory of 3660	5096	Windows CL.exe	86
PID 5096 wrote to memory of 3660	5096	Windows CL.exe	86
PID 5096 wrote to memory of 3660	5096	Windows CL.exe	86

C:\Users\Admin\AppData\Local\Temp\Windows CL.exe
"C:\Users\Admin\AppData\Local\Temp\Windows CL.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Roaming\XenoManager\Windows CL.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\Windows CL.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5096
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "Windows CL" /XML "C:\Users\Admin\AppData\Local\Temp\tmpED3E.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Windows CL.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpED3E.tmp

Filesize
1KB

MD5
fe297e871e04f8801c450ec83946123c

SHA1
8bcba48fc469007054203c27b6114039fe861fb0

SHA256
12528066723989eef7a909c2bc26e056c0895dab03b751de1afae0cce09ebee5

SHA512
18ac05868eb6f1e009098fb684298ac6ce61987fc3f759774bcdba40cbe3ea10c538ff8878f5d59797597e4ff156c546a20adf40f95c8f8239fa6527663225cd

Download Submit
C:\Users\Admin\AppData\Roaming\XenoManager\Windows CL.exe

Filesize
45KB

MD5
79bb9482fad6bd2663b4a57c2924789f

SHA1
4c8ac5a4e9812aa3a3f0096b3f0460145c8897eb

SHA256
64c3b598e7c704340897c8c69145fcdd4eb80bbfcfa6afe38cebf91db523ecdc

SHA512
d2e04f029293b1d0f9157e2e18ae325907d3305f1c7574b968738688cc3b8dd919cc8cd69191408e051aff3b3a1a74fa776192e95bdbeafad1e08b1a2096946e

Download Submit
memory/4892-0-0x000000007496E000-0x000000007496F000-memory.dmp

Filesize
4KB

Download
memory/4892-1-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/5096-15-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/5096-18-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download
memory/5096-19-0x0000000074960000-0x0000000075110000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads