Malware Analysis Report

2024-11-30 14:55

Sample ID 241028-nf1ajswjc1
Target Fa24c148.exe
SHA256 0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b
Tags
guloader vipkeylogger discovery downloader keylogger stealer collection spyware
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0b7ba80811d300aefe42de77b7b8fb2d5b6f9a8d4f2cf3d1213b6fead5efb59b

Threat Level: Known bad

The file Fa24c148.exe was found to be: Known bad.

Malicious Activity Summary

guloader vipkeylogger discovery downloader keylogger stealer collection spyware

VIPKeylogger

Guloader family

Vipkeylogger family

Guloader,Cloudeye

Reads user/profile data of web browsers

Loads dropped DLL

Reads user/profile data of local email clients

Legitimate hosting services abused for malware hosting/C2

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Drops file in Windows directory

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Browser Information Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-28 11:21

Signatures

Unsigned PE

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

2024-10-28 11:21

Reported

2024-10-28 11:23

Platform

win7-20241010-es

Max time kernel

119s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.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

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2336 set thread context of 1772 N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\olieaffald\Unconsummative103.pro C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
File opened for modification C:\Windows\rocksanger\noninfluential.ini C:\Users\Admin\AppData\Local\Temp\Fa24c148.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\Fa24c148.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 142.250.179.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.180.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.180.3:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 142.250.187.193:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp

Files

\Users\Admin\AppData\Local\Temp\nst19D8.tmp\System.dll

MD5 fc90dfb694d0e17b013d6f818bce41b0
SHA1 3243969886d640af3bfa442728b9f0dff9d5f5b0
SHA256 7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528
SHA512 324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

memory/2336-14-0x0000000003A20000-0x0000000004FE3000-memory.dmp

memory/2336-15-0x0000000003A20000-0x0000000004FE3000-memory.dmp

memory/2336-16-0x0000000077A51000-0x0000000077B52000-memory.dmp

memory/2336-17-0x0000000077A50000-0x0000000077BF9000-memory.dmp

memory/1772-18-0x0000000077A50000-0x0000000077BF9000-memory.dmp

memory/2336-19-0x0000000003A20000-0x0000000004FE3000-memory.dmp

memory/1772-20-0x00000000004A0000-0x0000000001502000-memory.dmp

memory/1772-40-0x00000000004A0000-0x0000000001502000-memory.dmp

memory/1772-41-0x00000000004A0000-0x00000000004E8000-memory.dmp

memory/1772-42-0x00000000004A0000-0x0000000001502000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-28 11:21

Reported

2024-10-28 11:23

Platform

win10v2004-20241007-es

Max time kernel

149s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

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-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\Fa24c148.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

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4468 set thread context of 2380 N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\olieaffald\Unconsummative103.pro C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
File opened for modification C:\Windows\rocksanger\noninfluential.ini C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Browser Information Discovery

discovery

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\Fa24c148.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe

"C:\Users\Admin\AppData\Local\Temp\Fa24c148.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 142.250.180.14:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.180.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.180.3:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 142.250.187.193:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 14.180.250.142.in-addr.arpa udp
US 8.8.8.8:53 3.180.250.142.in-addr.arpa udp
US 8.8.8.8:53 193.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
JP 132.226.8.169:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 169.8.226.132.in-addr.arpa udp
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 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nstA876.tmp\System.dll

MD5 fc90dfb694d0e17b013d6f818bce41b0
SHA1 3243969886d640af3bfa442728b9f0dff9d5f5b0
SHA256 7fe77ca13121a113c59630a3dba0c8aaa6372e8082393274da8f8608c4ce4528
SHA512 324f13aa7a33c6408e2a57c3484d1691ecee7c3c1366de2bb8978c8dc66b18425d8cab5a32d1702c13c43703e36148a022263de7166afdce141da2b01169f1c6

memory/4468-14-0x0000000005230000-0x00000000067F3000-memory.dmp

memory/4468-15-0x00000000778A1000-0x00000000779C1000-memory.dmp

memory/4468-16-0x0000000010004000-0x0000000010005000-memory.dmp

memory/4468-17-0x0000000005230000-0x00000000067F3000-memory.dmp

memory/2380-18-0x0000000001700000-0x0000000002CC3000-memory.dmp

memory/2380-19-0x0000000077928000-0x0000000077929000-memory.dmp

memory/2380-20-0x0000000077945000-0x0000000077946000-memory.dmp

memory/2380-33-0x0000000001700000-0x0000000002CC3000-memory.dmp

memory/2380-34-0x00000000004A0000-0x00000000016F4000-memory.dmp

memory/2380-35-0x00000000004A0000-0x00000000004E8000-memory.dmp

memory/2380-36-0x00000000359C0000-0x0000000035F64000-memory.dmp

memory/2380-37-0x0000000035F70000-0x000000003600C000-memory.dmp

memory/2380-38-0x00000000004A0000-0x00000000016F4000-memory.dmp

memory/2380-39-0x00000000778A1000-0x00000000779C1000-memory.dmp

memory/2380-40-0x0000000036680000-0x0000000036782000-memory.dmp

memory/2380-41-0x00000000365B0000-0x00000000365F0000-memory.dmp

memory/2380-42-0x0000000036790000-0x0000000036952000-memory.dmp

memory/2380-43-0x00000000365F0000-0x0000000036640000-memory.dmp

memory/2380-44-0x0000000036660000-0x0000000036672000-memory.dmp

memory/2380-46-0x0000000036960000-0x00000000369F2000-memory.dmp

memory/2380-47-0x0000000036A30000-0x0000000036A3A000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-28 11:21

Reported

2024-10-28 11:24

Platform

win7-20240903-es

Max time kernel

118s

Max time network

120s

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 2440 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-28 11:21

Reported

2024-10-28 11:24

Platform

win10v2004-20241007-es

Max time kernel

134s

Max time network

140s

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 4592 wrote to memory of 2060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4592 wrote to memory of 2060 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4592 wrote to memory of 2060 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 2060 -ip 2060

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2060 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

N/A