xenorat | acf6b4e5100ebd3921ea434dfb8e6fe93c3933390ec960a18670120d6732125b

Analysis

max time kernel
141s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/12/2024, 19:31

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General

Target
System32.exe
Size 45KB
Sample241212-x8mdtsxjdl
SHA256 acf6b4e5100ebd3921ea434dfb8e6fe93c3933390ec960a18670120d6732125b
MD5 896081ff179580794b2e56d763e60e5a
SHA1 97dca39b6a660e9e1285b401456576fdd0998710
SHA512 48809ea72174b61a8b6ee24c61a42257e60ac10980098c3fbad45cab00eb96065662bd57425f6dbd2f561f30ab88395f4cb568a7fdc62645824ed1de403a145e
SSDEEP 768:MdhO/poiiUcjlJIndfH9Xqk5nWEZ5SbTDatuI7CPW5S:Gw+jjgnVH9XqcnW85SbTwuIK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

127.0.0.1

Mutex

System32

Attributes

delay
5000
install_path
temp
port
4444
startup_name
System32

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/436-1-0x0000000000A50000-0x0000000000A62000-memory.dmp	family_xenorat
behavioral2/files/0x000c000000023b84-6.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	System32.exe

Executes dropped EXE 1 IoCs

pid	Process
4968	System32.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	System32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	System32.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
3600	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 4968	436	System32.exe	82
PID 436 wrote to memory of 4968	436	System32.exe	82
PID 436 wrote to memory of 4968	436	System32.exe	82
PID 4968 wrote to memory of 3600	4968	System32.exe	83
PID 4968 wrote to memory of 3600	4968	System32.exe	83
PID 4968 wrote to memory of 3600	4968	System32.exe	83

C:\Users\Admin\AppData\Local\Temp\System32.exe
"C:\Users\Admin\AppData\Local\Temp\System32.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:436
- C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4968
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "System32" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

System32.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\System32.exe.log
Size 226B
SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
MD5 916851e072fbabc4796d8916c5131092
SHA1 d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA512 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521
MD5 SHA1 SHA512

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System32.exe

Path C:\Users\Admin\AppData\Local\Temp\XenoManager\System32.exe
Size 45KB
SHA256 acf6b4e5100ebd3921ea434dfb8e6fe93c3933390ec960a18670120d6732125b
MD5 896081ff179580794b2e56d763e60e5a
SHA1 97dca39b6a660e9e1285b401456576fdd0998710
SHA512 48809ea72174b61a8b6ee24c61a42257e60ac10980098c3fbad45cab00eb96065662bd57425f6dbd2f561f30ab88395f4cb568a7fdc62645824ed1de403a145e
SSDEEP 768:MdhO/poiiUcjlJIndfH9Xqk5nWEZ5SbTDatuI7CPW5S:Gw+jjgnVH9XqcnW85SbTwuIK
MD5 SHA1 SHA512 SSDEEP

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tmp7474.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp
Size 1KB
SHA256 edacee32c3c4ba1c86b77b520a8f6d52e7aa004ff714c70bc2437877cde68c2b
MD5 b34fc460ef3471937aafe3b06e4f954c
SHA1 ed9abcc6b0430edbbdf4cf2c43243ba1a17e7aa2
SHA512 e3a1d215fb9808e69d10eb7852bedbbf1390bc2b0296a8187ea5d8cb6d393321f8bfae86e0407849b728ca2626b44314ad9c6c62cbcb58b63e33a57372018afd
MD5 SHA1 SHA512

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memory/436-0-0x00000000750CE000-0x00000000750CF000-memory.dmp

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memory/436-1-0x0000000000A50000-0x0000000000A62000-memory.dmp

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memory/4968-15-0x00000000750C0000-0x0000000075870000-memory.dmp

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memory/4968-16-0x00000000750C0000-0x0000000075870000-memory.dmp

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memory/4968-19-0x00000000750C0000-0x0000000075870000-memory.dmp

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memory/4968-20-0x00000000750C0000-0x0000000075870000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads