xenorat | 3a27cbf28bf377fdaf2ede53ce2c4df68bc2a69de9a97912fc2bb836e643a95f | Triage

Analysis

max time kernel
128s
max time network
131s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
11-05-2024 16:02

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General

Target

stzb.exe
Size

45KB
MD5

d699990c3a4490c11c156fec8add57d7
SHA1

27227c08812566529e4a36d00655a25343fed2c0
SHA256

3a27cbf28bf377fdaf2ede53ce2c4df68bc2a69de9a97912fc2bb836e643a95f
SHA512

7fdb8064bd9ff20318da59967b1b8068eac047729baabdf19ce99145fd647a546eb57a9e02d22166afc4d839476932dbb8b54305e0026140a1de6ef834620b65
SSDEEP

768:EdhO/poiiUcjlJInNHqH9Xqk5nWEZ5SbTDasWI7CPW5Q:ew+jjgnEH9XqcnW85SbTFWI4

Score

10^/10

xenorat rat trojan

Malware Config

Extracted

Family

xenorat

C2

ayumi-42243.portmap.host

Mutex

Xeno_rat_nd8912d

Attributes

delay
1000
install_path
appdata
port
42243
startup_name
asdf

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
3548	stzb.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task/Job

pid	Process
564	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 3548	2320	stzb.exe	79
PID 2320 wrote to memory of 3548	2320	stzb.exe	79
PID 2320 wrote to memory of 3548	2320	stzb.exe	79
PID 3548 wrote to memory of 564	3548	stzb.exe	81
PID 3548 wrote to memory of 564	3548	stzb.exe	81
PID 3548 wrote to memory of 564	3548	stzb.exe	81

C:\Users\Admin\AppData\Local\Temp\stzb.exe
"C:\Users\Admin\AppData\Local\Temp\stzb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Users\Admin\AppData\Roaming\XenoManager\stzb.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\stzb.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "asdf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4BFD.tmp" /F
    3⤵
    - Creates scheduled task(s)
    PID:564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Scheduled Task/Job

Privilege Escalation

Scheduled Task/Job

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
226B

MD5
1294de804ea5400409324a82fdc7ec59

SHA1
9a39506bc6cadf99c1f2129265b610c69d1518f7

SHA256
494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

SHA512
033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4BFD.tmp

Filesize
1KB

MD5
cd09efc4be2e9bcf7f87fe2202d1c2e7

SHA1
c3770bd132cc03c398018039f957c3299be702c2

SHA256
1986597741adca1243849a0622133bf3bb87460b7c10d714ceb0ee3c11a15931

SHA512
c8b27a0e2d8a211577fd1fb739346af733e24cccd1fe59b76e8ea47c737a7c3a0820a763806234d74ffda57f2a4fc3158ea5f9e097779c6bfa4e93455d6804ab

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

Filesize
45KB

MD5
d699990c3a4490c11c156fec8add57d7

SHA1
27227c08812566529e4a36d00655a25343fed2c0

SHA256
3a27cbf28bf377fdaf2ede53ce2c4df68bc2a69de9a97912fc2bb836e643a95f

SHA512
7fdb8064bd9ff20318da59967b1b8068eac047729baabdf19ce99145fd647a546eb57a9e02d22166afc4d839476932dbb8b54305e0026140a1de6ef834620b65

Download Submit
memory/2320-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000000820000-0x0000000000832000-memory.dmp

Filesize
72KB

Download
memory/3548-15-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/3548-18-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download
memory/3548-19-0x0000000074750000-0x0000000074F01000-memory.dmp

Filesize
7.7MB

Download