xenorat | 929bd3290253659ed89c3331eb1792fd8b6dee75b0872e485bbcc4cf417566bc

Analysis

max time kernel
133s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26-07-2024 20:42

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General

Target

windows_update.exe
Size

108KB
MD5

a6ea9e37bd47303cac85f331e64838a8
SHA1

a265b9cfbcef84980e2d2e1d11cd7b1097396297
SHA256

929bd3290253659ed89c3331eb1792fd8b6dee75b0872e485bbcc4cf417566bc
SHA512

a7615b9d24065132cf467386fed3ff273da2e6af71a48e150b0dca4437c2ed0eb9693fff51ae33f3dee1f195e15311469063527f779135f54ab07573b040c52d
SSDEEP

1536:mmiY0ryGXrOvCRq0wj4RcIVIbEAvYaueXe:mmiY0jKT02bEA51e

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

192.168.30.131

Mutex

Microsoft Inc

Attributes

delay
5000
install_path
temp
port
9099
startup_name
nothingset

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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	windows_update.exe

Executes dropped EXE 1 IoCs

pid	Process
1396	windows_update.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 2 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	windows_update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	windows_update.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 856 wrote to memory of 1396	856	windows_update.exe	87
PID 856 wrote to memory of 1396	856	windows_update.exe	87
PID 856 wrote to memory of 1396	856	windows_update.exe	87

C:\Users\Admin\AppData\Local\Temp\windows_update.exe
"C:\Users\Admin\AppData\Local\Temp\windows_update.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Local\Temp\XenoManager\windows_update.exe
  "C:\Users\Admin\AppData\Local\Temp\XenoManager\windows_update.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

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

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\windows_update.exe

Filesize
108KB

MD5
a6ea9e37bd47303cac85f331e64838a8

SHA1
a265b9cfbcef84980e2d2e1d11cd7b1097396297

SHA256
929bd3290253659ed89c3331eb1792fd8b6dee75b0872e485bbcc4cf417566bc

SHA512
a7615b9d24065132cf467386fed3ff273da2e6af71a48e150b0dca4437c2ed0eb9693fff51ae33f3dee1f195e15311469063527f779135f54ab07573b040c52d

Download Submit
memory/856-0-0x0000000074BEE000-0x0000000074BEF000-memory.dmp

Filesize
4KB

Download
memory/856-1-0x0000000000D80000-0x0000000000DA0000-memory.dmp

Filesize
128KB

Download
memory/1396-15-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download
memory/1396-16-0x0000000074BE0000-0x0000000075390000-memory.dmp

Filesize
7.7MB

Download