Malware Analysis Report

2025-04-03 14:26

Sample ID 241218-nnyrpaykaq
Target PAYMENT ADVICE 750013-10129943-81347-pdf.exe
SHA256 0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77
Tags
guloader collection discovery downloader evasion spyware stealer
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0ff51f1bfcef0cabf76af8a2c9bb5c01aef4940a97c9b5cebe83cddf62d5be77

Threat Level: Known bad

The file PAYMENT ADVICE 750013-10129943-81347-pdf.exe was found to be: Known bad.

Malicious Activity Summary

guloader collection discovery downloader evasion spyware stealer

Guloader,Cloudeye

Guloader family

Disables Task Manager via registry modification

Reads user/profile data of local email clients

Loads dropped DLL

Reads user/profile data of web browsers

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Drops file in System32 directory

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Enumerates physical storage devices

outlook_win_path

outlook_office_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-18 11:33

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win10ltsc2021-20241211-en

Max time kernel

147s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Disables Task Manager via registry modification

evasion

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-114766061-2901990051-2372745435-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-114766061-2901990051-2372745435-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-114766061-2901990051-2372745435-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.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

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\hjemmecomputeren.Pot C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1728 set thread context of 5000 N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

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\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-114766061-2901990051-2372745435-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-114766061-2901990051-2372745435-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
FR 142.250.75.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
FR 142.250.179.67:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
FR 142.250.179.67:80 o.pki.goog tcp
US 8.8.8.8:53 238.75.250.142.in-addr.arpa udp
US 8.8.8.8:53 67.179.250.142.in-addr.arpa udp
US 8.8.8.8:53 drive.usercontent.google.com udp
FR 142.250.74.225:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 225.74.250.142.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 152.67.21.104.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 fd.api.iris.microsoft.com udp
FR 20.199.58.43:443 fd.api.iris.microsoft.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsm7F33.tmp\System.dll

MD5 ee260c45e97b62a5e42f17460d406068
SHA1 df35f6300a03c4d3d3bd69752574426296b78695
SHA256 e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
SHA512 a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

memory/1728-14-0x0000000003320000-0x00000000061A6000-memory.dmp

memory/1728-15-0x0000000077801000-0x0000000077921000-memory.dmp

memory/1728-16-0x0000000010004000-0x0000000010005000-memory.dmp

memory/1728-17-0x0000000003320000-0x00000000061A6000-memory.dmp

memory/5000-18-0x00000000016C0000-0x0000000004546000-memory.dmp

memory/5000-33-0x0000000000460000-0x00000000016B3000-memory.dmp

memory/5000-34-0x0000000000460000-0x000000000047E000-memory.dmp

memory/5000-35-0x00000000370D0000-0x0000000037676000-memory.dmp

memory/5000-36-0x0000000037680000-0x000000003771C000-memory.dmp

memory/5000-38-0x00000000016C0000-0x0000000004546000-memory.dmp

memory/5000-39-0x0000000037AA0000-0x0000000037B32000-memory.dmp

memory/5000-40-0x0000000037B40000-0x0000000037B90000-memory.dmp

memory/5000-41-0x0000000037CE0000-0x0000000037EA2000-memory.dmp

memory/5000-42-0x0000000037F60000-0x0000000037F6A000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win11-20241007-en

Max time kernel

147s

Max time network

134s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Disables Task Manager via registry modification

evasion

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.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

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\hjemmecomputeren.Pot C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 952 set thread context of 3832 N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

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\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4249425805-3408538557-1766626484-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
FR 142.250.75.238:443 drive.google.com tcp
FR 142.250.179.67:80 o.pki.goog tcp
FR 142.250.179.67:80 o.pki.goog tcp
FR 142.250.179.67:80 o.pki.goog tcp
US 8.8.8.8:53 238.75.250.142.in-addr.arpa udp
US 8.8.8.8:53 180.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 67.179.250.142.in-addr.arpa udp
FR 142.250.74.225:443 drive.usercontent.google.com tcp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 104.21.67.152:443 reallyfreegeoip.org tcp
NL 149.154.167.220:443 api.telegram.org tcp

Files

C:\Users\Admin\AppData\Local\Temp\nse83D7.tmp\System.dll

MD5 ee260c45e97b62a5e42f17460d406068
SHA1 df35f6300a03c4d3d3bd69752574426296b78695
SHA256 e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
SHA512 a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

memory/952-14-0x0000000002C00000-0x0000000005A86000-memory.dmp

memory/952-15-0x00007FFDD0DA1000-0x00007FFDD0ECA000-memory.dmp

memory/952-16-0x00007FFDD0DA0000-0x00007FFDD0FA9000-memory.dmp

memory/952-17-0x0000000002C00000-0x0000000005A86000-memory.dmp

memory/3832-18-0x00007FFDD0DA0000-0x00007FFDD0FA9000-memory.dmp

memory/3832-33-0x0000000000460000-0x0000000001777000-memory.dmp

memory/3832-34-0x0000000000460000-0x000000000047E000-memory.dmp

memory/3832-35-0x00000000371C0000-0x0000000037766000-memory.dmp

memory/3832-36-0x0000000037770000-0x000000003780C000-memory.dmp

memory/3832-37-0x0000000037C40000-0x0000000037CD2000-memory.dmp

memory/3832-38-0x0000000037CE0000-0x0000000037D30000-memory.dmp

memory/3832-40-0x00007FFDD0DA0000-0x00007FFDD0FA9000-memory.dmp

memory/3832-41-0x0000000037E80000-0x0000000038042000-memory.dmp

memory/3832-42-0x0000000038100000-0x000000003810A000-memory.dmp

Analysis: behavioral4

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win7-20240903-en

Max time kernel

122s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 224

Network

N/A

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win10ltsc2021-20241211-en

Max time kernel

100s

Max time network

112s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3248 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3248 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3248 wrote to memory of 1628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 1628 -ip 1628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1628 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win11-20241007-en

Max time kernel

91s

Max time network

94s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 936 wrote to memory of 1704 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 936 wrote to memory of 1704 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 936 wrote to memory of 1704 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1704 -ip 1704

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 460

Network

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-18 11:33

Reported

2024-12-18 11:36

Platform

win7-20240903-en

Max time kernel

120s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Signatures

Disables Task Manager via registry modification

evasion

Reads user/profile data of web browsers

spyware stealer

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

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\hjemmecomputeren.Pot C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1864 set thread context of 1796 N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

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\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe

"C:\Users\Admin\AppData\Local\Temp\PAYMENT ADVICE 750013-10129943-81347-pdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
FR 142.250.75.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
FR 142.250.179.67:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
FR 142.250.179.67:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
FR 142.250.74.225:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 172.67.177.134:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 88.221.134.83:80 crl.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
GB 2.18.109.131:80 www.microsoft.com tcp

Files

\Users\Admin\AppData\Local\Temp\nsyB0D9.tmp\System.dll

MD5 ee260c45e97b62a5e42f17460d406068
SHA1 df35f6300a03c4d3d3bd69752574426296b78695
SHA256 e94a1f7bcd7e0d532b660d0af468eb3321536c3efdca265e61f9ec174b1aef27
SHA512 a98f350d17c9057f33e5847462a87d59cbf2aaeda7f6299b0d49bb455e484ce4660c12d2eb8c4a0d21df523e729222bbd6c820bf25b081bc7478152515b414b3

memory/1864-16-0x0000000002F20000-0x0000000005DA6000-memory.dmp

memory/1864-18-0x0000000076CF0000-0x0000000076E99000-memory.dmp

memory/1864-17-0x0000000076CF1000-0x0000000076DF2000-memory.dmp

memory/1864-19-0x0000000002F20000-0x0000000005DA6000-memory.dmp

memory/1796-20-0x0000000076CF0000-0x0000000076E99000-memory.dmp

memory/1796-40-0x0000000000460000-0x00000000014C2000-memory.dmp

memory/1796-41-0x0000000000460000-0x00000000014C2000-memory.dmp

memory/1796-42-0x0000000000460000-0x000000000047E000-memory.dmp