Malware Analysis Report

2024-10-19 06:32

Sample ID 240627-12cslatdne
Target index.exe
SHA256 375f99f85beb8bc69029429b3c5317543957ffa7ba559da6fd4b930ce48bfc7c
Tags
quasar seroxen spyware trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

375f99f85beb8bc69029429b3c5317543957ffa7ba559da6fd4b930ce48bfc7c

Threat Level: Known bad

The file index.exe was found to be: Known bad.

Malicious Activity Summary

quasar seroxen spyware trojan

Quasar RAT

Quasar payload

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-06-27 22:08

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 22:08

Reported

2024-06-27 22:11

Platform

win10v2004-20240508-en

Max time kernel

46s

Max time network

57s

Command Line

"C:\Users\Admin\AppData\Local\Temp\index.exe"

Signatures

Quasar RAT

trojan spyware quasar

Quasar payload

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 33 N/A C:\Windows\system32\AUDIODG.EXE N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\system32\AUDIODG.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\index.exe

"C:\Users\Admin\AppData\Local\Temp\index.exe"

C:\Windows\system32\cmd.exe

cmd.exe /C call powershell -E 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

C:\Windows\system32\cmd.exe

cmd.exe /C call C:\Users\Admin\AppData\Local\Temp\89435a09aea852638faa0bf902e7b347.bat

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell -E 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

C:\Windows\system32\AUDIODG.EXE

C:\Windows\system32\AUDIODG.EXE 0x3f4 0x408

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe

"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\w5ernzza\w5ernzza.cmdline"

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe

C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES5488.tmp" "c:\Users\Admin\AppData\Local\Temp\w5ernzza\CSC808AADA0C2A643ABAD93D3BE1FCE7556.TMP"

Network

Files

C:\Users\Admin\AppData\Local\Temp\89435a09aea852638faa0bf902e7b347.bat

MD5 ef652484dc356b0bc87741f24f2ade24
SHA1 f988ef8700c1ed15fa42f9a5756471d6bc18c9c8
SHA256 e5e973ff9fe9b009638fc6f8e3b10ca9acad76d2c6cf887f82b018e5a39aa225
SHA512 fae5a830fc64a0599686368ca0d3826e4ada1ec383f6faae19054d61bee285442b7471c8f18faf4d378ea025128cab974c50a0cd8f8daf892c6107d812662fec

memory/2576-3-0x00007FF8EF1A3000-0x00007FF8EF1A5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0x5jojkr.0b3.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2576-9-0x000001F6AD590000-0x000001F6AD5B2000-memory.dmp

memory/2576-14-0x00007FF8EF1A0000-0x00007FF8EFC61000-memory.dmp

memory/2576-15-0x00007FF8EF1A0000-0x00007FF8EFC61000-memory.dmp

\??\c:\Users\Admin\AppData\Local\Temp\w5ernzza\w5ernzza.0.cs

MD5 3d57f8f44297464baafa6aeecd3bf4bc
SHA1 f370b4b9f8dba01fbcad979bd663d341f358a509
SHA256 415199eec01052503978381a4f88f4cd970b441fedce519905990ed8b629b0f1
SHA512 4052dd65ca0a505a36c7c344671afcadb8f82cc24b0d1d8362f61565f9d37782e00332908444f6a95286dd1785d074762b27c20be1f361eec67807fad052d798

\??\c:\Users\Admin\AppData\Local\Temp\w5ernzza\w5ernzza.cmdline

MD5 d6ab557c3f66efbc15f1c5d250dc9d38
SHA1 475ced6474c560dc423da3eaebe243533fb8688c
SHA256 9957dab2b558e4acc5fab3104ec610b35ee18935353cf0d189f4d8f4051c4ef1
SHA512 d438b68eee954f329743be149baa5e6b4e4db568a62f550052f1b4e06192715047cd223ac2385d754e6ad15c97aa3a830615e9e93b3441a9ebcbee299c412e18

\??\c:\Users\Admin\AppData\Local\Temp\w5ernzza\CSC808AADA0C2A643ABAD93D3BE1FCE7556.TMP

MD5 fc092f455f3420295b86406a80f31cb4
SHA1 9bc85b9df1492a34d832574075f6db29db5457d1
SHA256 c0553a8e7cf57fcb064c09f3e3af2f09ed4c85a6b588e4535a4ee13dc5ed05f9
SHA512 28723da747a0f689c6ed9ed73ee19dbb3fc1b6b3a480eafa3d3f16287a0ab81c9b9d6b22959a5088b341f08085b9f5a6a46b285012f8d74ccd8ecb76bccf49eb

C:\Users\Admin\AppData\Local\Temp\RES5488.tmp

MD5 e8fbce5cb3f452f9bdad29785f4af75d
SHA1 1d734d8d725a7fddaf8abbcb3ed2af0e7338e123
SHA256 95f96635012f4e4c66df86351487b7b455e52cb9f18089724fdf42fdb7fb0911
SHA512 15c89c8bcae74bb7d4a484e2989097bacb01e72efc8cf07bd8409ebb38098eb487012574168f83fa8e77caa3d94018dd25ea733f7bd7aba4a89ee7e0b8a4ac76

C:\Users\Admin\AppData\Local\Temp\w5ernzza\w5ernzza.dll

MD5 9d73fd69910e61f5a779c7e45127c2be
SHA1 5c748cc20b59529d48c78623f0c70b42d606a0b4
SHA256 ff7ecf4fffcbc7aaf5dfa298848133c8ddbc466ac94e29092a67492d3a8a5fa3
SHA512 0ca26d35814bc55122e7b49fd9169c5a19f4c62bb02168c14ff0ab59b7496f6c40324b3335a8069548c2fb4cacc5cde9e9183cb38e4fe2dc86fdccac8ace5abb

memory/2576-28-0x000001F6AE0F0000-0x000001F6AE0F8000-memory.dmp

memory/2576-32-0x00007FF8EF1A0000-0x00007FF8EFC61000-memory.dmp