xenorat | a1d210450efc6b44a3be6887b4517627548bda1dbb48850f18a3222a386ad816

General

Target
MemReduct/Memreduction22222.exe
Size 45KB
Sample240904-2873razbjd
SHA256 e82280dc7853b182380424e45b3494da52b00dbe80637a96614ebd23a5d06cc4
MD5 ce1ea642a77b4bf6cbf7e8d74e800710
SHA1 afc6aae1d0c3aacdc7a75d6cee41a47c38a4fc14
SHA512 b2f258c3fd14ee0166d0f420df879e4dbf0375aac91162c9948fafe7fb5bbd901b955bcf7f70fcf2b53b809b4df28f88b214065c62ed1e2b486315c8f4fdb7ae
SSDEEP 768:IdhO/poiiUcjlJIns3EH9Xqk5nWEZ5SbTDaauI7CPW5e:6w+jjgn+EH9XqcnW85SbT/uI2
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Celex

Attributes

delay
5000
install_path
appdata
port
8080
startup_name
Steam_service

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat 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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	Memreduction22222.exe

Executes dropped EXE 1 IoCs

pid	Process
5084	Memreduction22222.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	Memreduction22222.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Memreduction22222.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
4032	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4876 wrote to memory of 5084	4876	Memreduction22222.exe	85
PID 4876 wrote to memory of 5084	4876	Memreduction22222.exe	85
PID 4876 wrote to memory of 5084	4876	Memreduction22222.exe	85
PID 5084 wrote to memory of 4032	5084	Memreduction22222.exe	91
PID 5084 wrote to memory of 4032	5084	Memreduction22222.exe	91
PID 5084 wrote to memory of 4032	5084	Memreduction22222.exe	91

C:\Users\Admin\AppData\Local\Temp\MemReduct\Memreduction22222.exe
"C:\Users\Admin\AppData\Local\Temp\MemReduct\Memreduction22222.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4876
- C:\Users\Admin\AppData\Roaming\XenoManager\Memreduction22222.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\Memreduction22222.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5084
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "Steam_service" /XML "C:\Users\Admin\AppData\Local\Temp\tmp88E7.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4032

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

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Memreduction22222.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Memreduction22222.exe.log
Size 226B
SHA256 7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d
MD5 916851e072fbabc4796d8916c5131092
SHA1 d48a602229a690c512d5fdaf4c8d77547a88e7a2
SHA512 07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521
MD5 SHA1 SHA512

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tmp88E7.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp88E7.tmp
Size 1KB
SHA256 e6b10b58165e00395126e6c12f2c47fd5886d8228ce21a06d7ec3bbec77e140d
MD5 12a53938027cb86df0425cff9dd3040d
SHA1 e3c7aceee9ff0f623fac534d1ffd5bc9e73598e1
SHA512 504c0e3bfac15684a818b434b93425e73a57c147ec259ea2d85bbfca6db171cb03983bbd95a1a54d067d611289d3892ac661ec48aee8610d15a9ded323d961b2
MD5 SHA1 SHA512

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Memreduction22222.exe

Path C:\Users\Admin\AppData\Roaming\XenoManager\Memreduction22222.exe
Size 45KB
SHA256 e82280dc7853b182380424e45b3494da52b00dbe80637a96614ebd23a5d06cc4
MD5 ce1ea642a77b4bf6cbf7e8d74e800710
SHA1 afc6aae1d0c3aacdc7a75d6cee41a47c38a4fc14
SHA512 b2f258c3fd14ee0166d0f420df879e4dbf0375aac91162c9948fafe7fb5bbd901b955bcf7f70fcf2b53b809b4df28f88b214065c62ed1e2b486315c8f4fdb7ae
SSDEEP 768:IdhO/poiiUcjlJIns3EH9Xqk5nWEZ5SbTDaauI7CPW5e:6w+jjgn+EH9XqcnW85SbT/uI2
MD5 SHA1 SHA512 SSDEEP

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memory/4876-0-0x000000007466E000-0x000000007466F000-memory.dmp

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memory/4876-1-0x0000000000670000-0x0000000000682000-memory.dmp

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memory/5084-15-0x0000000074660000-0x0000000074E10000-memory.dmp

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memory/5084-18-0x0000000074660000-0x0000000074E10000-memory.dmp

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memory/5084-19-0x0000000074660000-0x0000000074E10000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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