ea185287426ba75b8934f7a60944dab61a0d806382f6484417a9121a0d4ab088 | Triage™

Analysis

max time kernel
141s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
01/02/2024, 11:51

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General

Target
LoaderAsset.exe
Size 41KB
Sample240201-n1f3eaefej
SHA256 aa28b0ff8badf57aaeeacd82f0d8c5fbbd28008449a3075d8a4da63890232418
MD5 7da5bd364fc0a60a43ab4797f5042b7e
SHA1 815c770e5fbb4bb66c8652a14169e2f8ff8179b2
SHA512 09abb47a3cdb124b4dbf7634e5075a76e9d9b69b1e45b7eaad613c9d886717377fb4cf32c1e699f1cb16463bcd739a826929c7c8c1d8c871828fbee12d0074b2
SSDEEP 768:Ya7HmiY7iDT6pKVNSiS0MMZlUvPa0KKR5sFbAgAbLcGWEYH5j:giY0TygtS0FZlUq0K+5sF8gAbLEEYR
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

rat

Malware Config

Signatures

Detects XenoRAT malware 4 IoCs

XenoRAT is an open-source remote access tool (RAT) developed in C#.

resource	yara_rule
behavioral3/memory/1044-0-0x00000000004C0000-0x00000000004D0000-memory.dmp	XenoRAT
behavioral3/files/0x00090000000231f0-6.dat	XenoRAT
behavioral3/memory/4888-17-0x0000000005320000-0x0000000005330000-memory.dmp	XenoRAT
behavioral3/memory/4888-21-0x0000000005320000-0x0000000005330000-memory.dmp	XenoRAT

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	LoaderAsset.exe

Executes dropped EXE 1 IoCs

pid	Process
4888	LoaderAsset.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
3696	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 4888	1044	LoaderAsset.exe	84
PID 1044 wrote to memory of 4888	1044	LoaderAsset.exe	84
PID 1044 wrote to memory of 4888	1044	LoaderAsset.exe	84
PID 4888 wrote to memory of 3696	4888	LoaderAsset.exe	89
PID 4888 wrote to memory of 3696	4888	LoaderAsset.exe	89
PID 4888 wrote to memory of 3696	4888	LoaderAsset.exe	89

C:\Users\Admin\AppData\Local\Temp\LoaderAsset.exe
"C:\Users\Admin\AppData\Local\Temp\LoaderAsset.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1044
- C:\Users\Admin\AppData\Roaming\XenoManager\LoaderAsset.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\LoaderAsset.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "WindowsUpdate" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5709.tmp" /F
    3⤵
    - Creates scheduled task(s)
    PID:3696

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

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

LoaderAsset.exe.log

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

Submit Download

tmp5709.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp5709.tmp
Size 1KB
SHA256 7cadd6ed5e838d00a13d1bbfff7044ca2ce41f11c328ed665c7482554c591666
MD5 32ae9f72423c2eca96a41f7d5a7593e5
SHA1 c66b9d0608448f0bd227408611343e4ba5ada953
SHA512 90251ea816aef4b0c89cd8ababa7092a92e55d82693a47bcece514e6a91ade5b6afbabb26a1d92d56912872182f65a7ba4f99673b13ebc7078b546f9326a9faa
MD5 SHA1 SHA512

Submit Download

LoaderAsset.exe

Path C:\Users\Admin\AppData\Roaming\XenoManager\LoaderAsset.exe
Size 41KB
SHA256 aa28b0ff8badf57aaeeacd82f0d8c5fbbd28008449a3075d8a4da63890232418
MD5 7da5bd364fc0a60a43ab4797f5042b7e
SHA1 815c770e5fbb4bb66c8652a14169e2f8ff8179b2
SHA512 09abb47a3cdb124b4dbf7634e5075a76e9d9b69b1e45b7eaad613c9d886717377fb4cf32c1e699f1cb16463bcd739a826929c7c8c1d8c871828fbee12d0074b2
SSDEEP 768:Ya7HmiY7iDT6pKVNSiS0MMZlUvPa0KKR5sFbAgAbLcGWEYH5j:giY0TygtS0FZlUq0K+5sF8gAbLEEYR
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1044-0-0x00000000004C0000-0x00000000004D0000-memory.dmp

Download

memory/1044-1-0x0000000074FE0000-0x0000000075790000-memory.dmp

Download

memory/1044-15-0x0000000074FE0000-0x0000000075790000-memory.dmp

Download

memory/4888-16-0x0000000074FE0000-0x0000000075790000-memory.dmp

Download

memory/4888-17-0x0000000005320000-0x0000000005330000-memory.dmp

Download

memory/4888-20-0x0000000074FE0000-0x0000000075790000-memory.dmp

Download

memory/4888-21-0x0000000005320000-0x0000000005330000-memory.dmp

Download