quasar | b2ac73060b0d8fd731ebf79beefc02b79ffacc6262a57790e365db9f9cddd960

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2024, 11:44

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General

Target
eyiqd.ps1
Size 3.6MB
Sample240319-nv55cabb92
SHA256 b2ac73060b0d8fd731ebf79beefc02b79ffacc6262a57790e365db9f9cddd960
MD5 f319a0df44a2c8f90cdd7377955553f5
SHA1 392e4e1743f11f241ba0057e11bedd6bc4c56eaf
SHA512 d4c0932ad4a6302241f05bfeabd3b5e966e3e5083a97bf85a669d7599f7af512ac263d281cdae8b9045944a99286c39c3b1d7ccacb0fd8dc11748a6c67191984
SSDEEP 12288:+80rjp4ZEbqWo/65t++SxPDViVi11vtUNoMLpCgrkm7vwAeu7Bs6F3XLLx+mLhRf:pgoUUdnmEaDx8SYb8OkWEX
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

quasar novotrampo2 spyware trojan

Malware Config

Extracted

Family

quasar

Version

2.8.0.1

Botnet

NovoTrampo2

54.39.233.85:5552

Mutex

9lbgWMCOyBXLpD2GFc

Attributes

encryption_key
i3BYRN7AwNMBqQArRApz
install_name
Venom.exe
log_directory
Logs
reconnect_delay
3000
startup_key
Venom Client Startup

Signatures

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

Quasar payload 1 IoCs

resource	yara_rule
behavioral2/memory/1136-14-0x0000000000400000-0x00000000004EC000-memory.dmp	family_quasar

Blocklisted process makes network request 1 IoCs

flow	pid	Process
10	4516	powershell.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
27	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4516 set thread context of 1136	4516	powershell.exe	94

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4516	powershell.exe
4516	powershell.exe
4516	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4516	powershell.exe
Token: SeDebugPrivilege	1136	MSBuild.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94
PID 4516 wrote to memory of 1136	4516	powershell.exe	94

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\eyiqd.ps1
1⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1136

Network

MITRE ATT&CK Matrix

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Downloads

__PSScriptPolicyTest_j0aujbnr.5hc.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_j0aujbnr.5hc.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/1136-22-0x00000000056B0000-0x0000000005716000-memory.dmp

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memory/1136-20-0x00000000055B0000-0x0000000005642000-memory.dmp

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memory/1136-27-0x00000000056A0000-0x00000000056B0000-memory.dmp

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memory/1136-26-0x0000000074C70000-0x0000000075420000-memory.dmp

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memory/1136-25-0x0000000006990000-0x000000000699A000-memory.dmp

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memory/1136-14-0x0000000000400000-0x00000000004EC000-memory.dmp

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memory/1136-24-0x00000000067D0000-0x000000000680C000-memory.dmp

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memory/1136-18-0x0000000074C70000-0x0000000075420000-memory.dmp

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memory/1136-23-0x0000000006390000-0x00000000063A2000-memory.dmp

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memory/1136-21-0x00000000056A0000-0x00000000056B0000-memory.dmp

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memory/1136-19-0x0000000005AC0000-0x0000000006064000-memory.dmp

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memory/4516-9-0x0000025AF3860000-0x0000025AF3882000-memory.dmp

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memory/4516-10-0x00007FFE0E910000-0x00007FFE0F3D1000-memory.dmp

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memory/4516-17-0x00007FFE0E910000-0x00007FFE0F3D1000-memory.dmp

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memory/4516-13-0x0000025AF3850000-0x0000025AF3858000-memory.dmp

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memory/4516-12-0x0000025AF1D80000-0x0000025AF1D90000-memory.dmp

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memory/4516-11-0x0000025AF1D80000-0x0000025AF1D90000-memory.dmp

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