xenorat | 5379f50c0b4b3a28641354e048b51278dd10519f50e081a07bbe8f0d4f22a5ad

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2024, 17:23

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General

Target
SteamUDP.exe
Size 45KB
Sample240704-vycqjascrd
SHA256 5379f50c0b4b3a28641354e048b51278dd10519f50e081a07bbe8f0d4f22a5ad
MD5 71f93439066552063011b27f448fc1ce
SHA1 afd983b5d3a34ba29ef18d7675e617b9a6da724f
SHA512 ac56596bb93e61d240933353a1d3fd1d5a64dce97e13d381b94190f312ec57be856cd3fdd08c685d6960d734518514b7ecf69284e6371fe8fd96480ae1d76be3
SSDEEP 768:9dhO/poiiUcjlJInbzH9Xqk5nWEZ5SbTDa+WI7CPW5w:zw+jjgnXH9XqcnW85SbT/WIY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xenorat rat trojan

Malware Config

Extracted

Family

xenorat

37.120.141.155

Mutex

SteamUDP

Attributes

delay
5000
install_path
temp
port
22914
startup_name
SteamUDPUpdater

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	SteamUDP.exe

Executes dropped EXE 1 IoCs

pid	Process
2396	SteamUDP.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
380	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5036 wrote to memory of 2396	5036	SteamUDP.exe	81
PID 5036 wrote to memory of 2396	5036	SteamUDP.exe	81
PID 5036 wrote to memory of 2396	5036	SteamUDP.exe	81
PID 2396 wrote to memory of 380	2396	SteamUDP.exe	82
PID 2396 wrote to memory of 380	2396	SteamUDP.exe	82
PID 2396 wrote to memory of 380	2396	SteamUDP.exe	82

C:\Users\Admin\AppData\Local\Temp\SteamUDP.exe
"C:\Users\Admin\AppData\Local\Temp\SteamUDP.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "SteamUDPUpdater" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5B6E.tmp" /F
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:380

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

SteamUDP.exe.log

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

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SteamUDP.exe

Path C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe
Size 45KB
SHA256 5379f50c0b4b3a28641354e048b51278dd10519f50e081a07bbe8f0d4f22a5ad
MD5 71f93439066552063011b27f448fc1ce
SHA1 afd983b5d3a34ba29ef18d7675e617b9a6da724f
SHA512 ac56596bb93e61d240933353a1d3fd1d5a64dce97e13d381b94190f312ec57be856cd3fdd08c685d6960d734518514b7ecf69284e6371fe8fd96480ae1d76be3
SSDEEP 768:9dhO/poiiUcjlJInbzH9Xqk5nWEZ5SbTDa+WI7CPW5w:zw+jjgnXH9XqcnW85SbT/WIY
MD5 SHA1 SHA512 SSDEEP

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tmp5B6E.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp5B6E.tmp
Size 1KB
SHA256 fb1d16435bee9ea3fa3d171f3d01818c1c1dd3ce5e47d9292c7b0089ad6f2773
MD5 3e416c7f65c19033c2c17e7f0bc2bfd8
SHA1 edc2d8b19e94e8d29579baf5e01c5fe057425712
SHA512 debae6c61bcf8e34575d4eec2334c27b0205b5a6b428e9f17ff25a55bea845bb5131c68f0ba7384e781b2b9d2dfd1eb2ce93aef47d4fe2dee34a21c147973524
MD5 SHA1 SHA512

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memory/2396-15-0x0000000074640000-0x0000000074DF0000-memory.dmp

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memory/2396-18-0x0000000074640000-0x0000000074DF0000-memory.dmp

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memory/5036-0-0x000000007464E000-0x000000007464F000-memory.dmp

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memory/5036-1-0x0000000000960000-0x0000000000972000-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