quasar | 9618961af8c6db27588c649679634bec7ece8fabd3e48f02f33ac0b837b56d2e

Analysis

max time kernel
146s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15-07-2024 16:14

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General

Target

zvgfd-main/Empyrean Removal Tool .exe
Size

495KB
MD5

0858df720da731fb05cfa980134fa639
SHA1

0e5e7bf34494892b20e2ed62cea218ada919361d
SHA256

4af251cefa5fbdfb07cff0be7ba01cd6f525099949dac28b5780876a4942d810
SHA512

c2f06ec22f57876b4ed168536bba76b7121962bb752d2a244eea3a37b68044837bf4263b5e3812a4ec1cf5b235653b3f389bbeefef89f609ae5af0eb1e847eb9
SSDEEP

12288:r6iLGC/KU7T+q1/t5moY4MHJgOvK2xqTCzqkfuxHn:rDVyWT+Y/t0oY4MKiK20T8fux

Score

10^/10

quasar xworm slave execution rat spyware trojan

Malware Config

Extracted

Family

xworm

super-nearest.gl.at.ply.gg:17835

Extracted

Family

quasar

Version

3.1.5

Botnet

Slave

stop-largely.gl.at.ply.gg:27116

Mutex

$Sxr-kl1r656AGsPQksTmi8

Attributes

encryption_key
JAfppY5sR1LcDCf00ZQ4
install_name
$sxr~Client.exe
log_directory
Logs
reconnect_delay
3000
startup_key
SeroXen Client Startup
subdirectory
$sxr~SubDir

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral5/files/0x000700000002350a-6.dat	family_xworm
behavioral5/memory/1140-22-0x0000000000240000-0x0000000000258000-memory.dmp	family_xworm

Quasar RAT
Quasar is an open source Remote Access Tool.
trojan spyware quasar

Quasar payload 2 IoCs

resource	yara_rule
behavioral5/files/0x000700000002351a-17.dat	family_quasar
behavioral5/memory/2448-28-0x0000000000C70000-0x0000000000CDC000-memory.dmp	family_quasar

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1604	powershell.exe
3996	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	Empyrean Removal Tool .exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	Fanta.Live.exe

Executes dropped EXE 2 IoCs

pid	Process
1140	Fanta.Live.exe
2448	Uni.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1604	powershell.exe
1604	powershell.exe
3996	powershell.exe
3996	powershell.exe
1140	Fanta.Live.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	Uni.exe
Token: SeDebugPrivilege	1140	Fanta.Live.exe
Token: SeDebugPrivilege	1604	powershell.exe
Token: SeDebugPrivilege	3996	powershell.exe
Token: SeDebugPrivilege	1140	Fanta.Live.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2448	Uni.exe
1140	Fanta.Live.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 540 wrote to memory of 1140	540	Empyrean Removal Tool .exe	84
PID 540 wrote to memory of 1140	540	Empyrean Removal Tool .exe	84
PID 540 wrote to memory of 2448	540	Empyrean Removal Tool .exe	85
PID 540 wrote to memory of 2448	540	Empyrean Removal Tool .exe	85
PID 540 wrote to memory of 2448	540	Empyrean Removal Tool .exe	85
PID 2448 wrote to memory of 764	2448	Uni.exe	87
PID 2448 wrote to memory of 764	2448	Uni.exe	87
PID 2448 wrote to memory of 764	2448	Uni.exe	87
PID 1140 wrote to memory of 1604	1140	Fanta.Live.exe	89
PID 1140 wrote to memory of 1604	1140	Fanta.Live.exe	89
PID 1140 wrote to memory of 3996	1140	Fanta.Live.exe	91
PID 1140 wrote to memory of 3996	1140	Fanta.Live.exe	91

C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool .exe
"C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Empyrean Removal Tool .exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:540
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Fanta.Live.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Fanta.Live.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1140
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Fanta.Live.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1604
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Fanta.Live.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3996
- C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Uni.exe
  "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Uni.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2448
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks" /create /tn "SeroXen Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Uni.exe" /rl HIGHEST /f
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1nlbuwyo.50d.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Fanta.Live.exe

Filesize
73KB

MD5
60d0b57571b43d98f5993066eb083637

SHA1
b84391c08557b919e385939b9acdd8df768a3e6a

SHA256
6947c0946505af848a175127bc08d77a2ed846c7b94a79d3c27881725cebf2ef

SHA512
32d3f9c226e9951399381317441c8768b02556082488ec5be18e2e08daf33144e4cee8536eddbb9ea0a0dcd75495d1cb4cc047e49195fe2092852e9d20d64796

Download Submit
C:\Users\Admin\AppData\Local\Temp\zvgfd-main\Uni.exe

Filesize
409KB

MD5
a761927744e8ef30e04beefb644cd272

SHA1
8450c00f1141399d75c87de08f6b29837c148232

SHA256
08d3de9382225ce31ada8470f003dfa68789a6bb857bf3adc67d80d7a93018f9

SHA512
98775f9e55bfb66944ef315feadbdb60a7be80e2d00bf4f1f944b341515bae2f4f0b115145b78c6a6026550a8646933c9ec49d7e4161810ef69dc4d2875ea4e5

Download Submit
memory/540-1-0x00000000003C0000-0x0000000000442000-memory.dmp

Filesize
520KB

Download
memory/540-0-0x00007FFF7C0F3000-0x00007FFF7C0F5000-memory.dmp

Filesize
8KB

Download
memory/1140-26-0x00007FFF7C0F0000-0x00007FFF7CBB1000-memory.dmp

Filesize
10.8MB

Download
memory/1140-65-0x00000000022B0000-0x00000000022C0000-memory.dmp

Filesize
64KB

Download
memory/1140-62-0x00007FFF7C0F0000-0x00007FFF7CBB1000-memory.dmp

Filesize
10.8MB

Download
memory/1140-22-0x0000000000240000-0x0000000000258000-memory.dmp

Filesize
96KB

Download
memory/1140-35-0x00000000022B0000-0x00000000022C0000-memory.dmp

Filesize
64KB

Download
memory/1604-47-0x000001B37FB30000-0x000001B37FB52000-memory.dmp

Filesize
136KB

Download
memory/2448-27-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2448-34-0x0000000006800000-0x000000000683C000-memory.dmp

Filesize
240KB

Download
memory/2448-37-0x0000000006CC0000-0x0000000006CCA000-memory.dmp

Filesize
40KB

Download
memory/2448-33-0x0000000005D00000-0x0000000005D12000-memory.dmp

Filesize
72KB

Download
memory/2448-32-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/2448-31-0x0000000074E90000-0x0000000075640000-memory.dmp

Filesize
7.7MB

Download
memory/2448-30-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/2448-29-0x0000000005D30000-0x00000000062D4000-memory.dmp

Filesize
5.6MB

Download
memory/2448-63-0x0000000074E9E000-0x0000000074E9F000-memory.dmp

Filesize
4KB

Download
memory/2448-64-0x0000000074E90000-0x0000000075640000-memory.dmp

Filesize
7.7MB

Download
memory/2448-28-0x0000000000C70000-0x0000000000CDC000-memory.dmp

Filesize
432KB

Download