xenorat | 41218c54d65efa9ea37bfcee51e294871687cddcb014e1b796c31a022c4df164

Resubmissions

01-08-2024 19:20

240801-x2h3tsvclr 10

01-08-2024 19:20

240801-x14cdavckl 10

01-08-2024 19:19

240801-x1tsyayfmd 10

Analysis

max time kernel
598s
max time network
438s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2024 19:20

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General

Target

xero/xero.exe
Size

45KB
MD5

3b55e1134c4d41bd31da43caa2e281e3
SHA1

626b6f42961606a84f55529388ba5a761f773ee0
SHA256

a250d17fc5aedefe2b11a61a8702839cf47317dc36b88e5abeb789a019787c07
SHA512

efb34525c6d2216569b981fdca53e0ca5123195d5559eedffe90aec98fdea1c49734cfeb1bb4fc38b1147059be057b64180c8d71867a93739cb27bee03af722e
SSDEEP

768:tdhO/poiiUcjlJInDQuH9Xqk5nWEZ5SbTDaWWI7CPW57:jw+jjgnRH9XqcnW85SbTvWIj

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

127.0.0.1

Mutex

Xero_Legit

Attributes

delay
5000
install_path
appdata
port
5525
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-1-5-21-807826884-2440573969-3755798217-1000\Control Panel\International\Geo\Nation	xero.exe

Executes dropped EXE 1 IoCs

pid	Process
4740	xero.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	xero.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xero.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 4740	2388	xero.exe	86
PID 2388 wrote to memory of 4740	2388	xero.exe	86
PID 2388 wrote to memory of 4740	2388	xero.exe	86

C:\Users\Admin\AppData\Local\Temp\xero\xero.exe
"C:\Users\Admin\AppData\Local\Temp\xero\xero.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Users\Admin\AppData\Roaming\XenoManager\xero.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\xero.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4740

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

Replay Monitor

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Downloads

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

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

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

Filesize
45KB

MD5
3b55e1134c4d41bd31da43caa2e281e3

SHA1
626b6f42961606a84f55529388ba5a761f773ee0

SHA256
a250d17fc5aedefe2b11a61a8702839cf47317dc36b88e5abeb789a019787c07

SHA512
efb34525c6d2216569b981fdca53e0ca5123195d5559eedffe90aec98fdea1c49734cfeb1bb4fc38b1147059be057b64180c8d71867a93739cb27bee03af722e

Download Submit
memory/2388-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

Filesize
4KB

Download
memory/2388-1-0x0000000000740000-0x0000000000752000-memory.dmp

Filesize
72KB

Download
memory/4740-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/4740-16-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download
memory/4740-17-0x0000000074B30000-0x00000000752E0000-memory.dmp

Filesize
7.7MB

Download