xenorat | 2862c2fdbd071dd3308fb352a626da5e5f010c9b5ee9b3b1f6671e78c556dd55

Analysis

max time kernel
19s
max time network
16s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
24-05-2024 01:05

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General

Target

Quasar-Installer.exe
Size

491KB
MD5

8def0ef788602675c4d6fc2a72f93944
SHA1

b153631a58aa2b88120412f84493fb3250673e4c
SHA256

2862c2fdbd071dd3308fb352a626da5e5f010c9b5ee9b3b1f6671e78c556dd55
SHA512

e10bbc8b382accb4e946e1058c3bf17305a8df53d3d034dace25b7506d2fb7d56b47b5ed6552c3fc0a32d492f9eccf92d95664591091f7d0c30aac882a3ea45b
SSDEEP

12288:5CQjgAtAHM+vetZxF5EWry8AJGy0vC8JLY8V1/3sRRAw:55ZWs+OZVEWry8AF18JLYgUR1

Score

10^/10

xenorat rat trojan

Malware Config

Extracted

Family

xenorat

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
appdata
port
4444
startup_name
Quasar

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat
Executes dropped EXE 2 IoCs

Processes:

Quasar-Installer.exeQuasar-Installer.exe

pid process

2968 Quasar-Installer.exe
2456 Quasar-Installer.exe
Loads dropped DLL 1 IoCs

Processes:

Quasar-Installer.exe

pid process

2968 Quasar-Installer.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.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2516 schtasks.exe

pid	process
2968	Quasar-Installer.exe
2456	Quasar-Installer.exe

pid	process
2968	Quasar-Installer.exe

pid	process
2516	schtasks.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

Quasar-Installer.exeQuasar-Installer.exeQuasar-Installer.exe

description	pid	process	target process
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2276 wrote to memory of 2968	2276	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2968 wrote to memory of 2456	2968	Quasar-Installer.exe	Quasar-Installer.exe
PID 2456 wrote to memory of 2516	2456	Quasar-Installer.exe	schtasks.exe
PID 2456 wrote to memory of 2516	2456	Quasar-Installer.exe	schtasks.exe
PID 2456 wrote to memory of 2516	2456	Quasar-Installer.exe	schtasks.exe
PID 2456 wrote to memory of 2516	2456	Quasar-Installer.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Quasar-Installer.exe
"C:\Users\Admin\AppData\Local\Temp\Quasar-Installer.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2276

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Quasar-Installer.exe
"C:\Users\Admin\AppData\Local\Temp\RarSFX0\Quasar-Installer.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2968

C:\Users\Admin\AppData\Roaming\XenoManager\Quasar-Installer.exe
"C:\Users\Admin\AppData\Roaming\XenoManager\Quasar-Installer.exe"
3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2456

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /Create /TN "Quasar" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1278.tmp" /F
4⤵
- Creates scheduled task(s)
PID:2516

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Quasar-Installer.exe
Filesize
57KB

MD5
800a317039e17efeb46d6879adf7c19f

SHA1
110fc941037e9ad167b436db313e4ef3e43e18e6

SHA256
7bae7a85d03bf751b5fee0b6141a314c03023c904be6e28d7a90f1cd3910741c

SHA512
ff01e97fc00310b6b766f82971f455a5b0c88505e8e0b4ac2dbfa8991d38375d72751045ea2c799f871074fd497a205671f0ad87e4f7d22187cf2b3ae21d9ed6

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1278.tmp
Filesize
1KB

MD5
c7c6824afe2d715ccc1f958697662e6c

SHA1
e8f3e3216ffca69f7cca1f567787f74966b71d96

SHA256
233f565186c07ecbce427bed376789a60ae8ed601bcac3726fe340c5421e9d23

SHA512
c586982443aedcd9a7dc360ab3f5b034e7dfd74cebef490c173e43e3469ddb25c6c05dff679f0c63fd68ac1bbaf9433a97486262d0fafa0f947dd279f801b317

Download Submit
memory/2456-27-0x0000000000B90000-0x0000000000BA4000-memory.dmp

Filesize
80KB

Download
memory/2968-18-0x000000007443E000-0x000000007443F000-memory.dmp

Filesize
4KB

Download
memory/2968-19-0x0000000001140000-0x0000000001154000-memory.dmp

Filesize
80KB

Download