Malware Analysis Report

2024-12-06 03:24

Sample ID 241023-bsnq3awcmp
Target 654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
SHA256 654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3
Tags
discovery guloader downloader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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 Overview

score
10/10

SHA256

654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3

Threat Level: Known bad

The file 654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe was found to be: Known bad.

Malicious Activity Summary

discovery guloader downloader

Guloader,Cloudeye

Loads dropped DLL

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Drops file in Program Files directory

Drops file in Windows directory

Program crash

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-23 01:24

Signatures

Unsigned PE

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

NSIS installer

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

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-23 01:24

Reported

2024-10-23 01:27

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

127s

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 3004 wrote to memory of 3884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3004 wrote to memory of 3884 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3004 wrote to memory of 3884 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 3884 -ip 3884

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3884 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 139.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 150.171.27.10:443 tse1.mm.bing.net tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-23 01:24

Reported

2024-10-23 01:27

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\ordstreng\spright.aor C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
File opened for modification C:\Program Files (x86)\flekstidernes.uns C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\glanes\skulapslangerne.bal C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
File opened for modification C:\Windows\Dehorted.jil C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.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\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 2780 wrote to memory of 1424 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe
PID 1424 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Windows\SysWOW64\WerFault.exe
PID 1424 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Windows\SysWOW64\WerFault.exe
PID 1424 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Windows\SysWOW64\WerFault.exe
PID 1424 wrote to memory of 2684 N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1424 -s 660

Network

Country Destination Domain Proto
US 204.10.160.169:80 204.10.160.169 tcp

Files

C:\Users\Admin\Desktop\sexbombes.ini

MD5 020722cea174cdf2e504cdd0944e9935
SHA1 11efb296d9c118b4f7101173e0fd3e7927286dfc
SHA256 abf81fb4711b6f9b7ec09239c71a231876e85a9035d90385058f386d638f2f05
SHA512 72d4ab9ff93befd603c90fccb732a57f96ef0f0b66dab0ac6855e6a36314c6739b0d032162619cde1667e192591f502ecbdaf194dac5a10aeb2b302d851b1341

\Users\Admin\AppData\Local\Temp\nsoF440.tmp\System.dll

MD5 3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 fe582246792774c2c9dd15639ffa0aca90d6fd0b
SHA256 fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
SHA512 0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

memory/2780-352-0x0000000003D60000-0x0000000004991000-memory.dmp

memory/2780-354-0x0000000077470000-0x0000000077619000-memory.dmp

memory/2780-353-0x0000000077471000-0x0000000077572000-memory.dmp

memory/2780-356-0x0000000003D60000-0x0000000004991000-memory.dmp

memory/1424-357-0x0000000077470000-0x0000000077619000-memory.dmp

memory/1424-355-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1424-358-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1424-361-0x0000000077470000-0x0000000077619000-memory.dmp

memory/1424-359-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-23 01:24

Reported

2024-10-23 01:27

Platform

win10v2004-20241007-en

Max time kernel

139s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\flekstidernes.uns C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
File opened for modification C:\Program Files (x86)\Common Files\ordstreng\spright.aor C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\glanes\skulapslangerne.bal C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
File opened for modification C:\Windows\Dehorted.jil C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.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\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe

"C:\Users\Admin\AppData\Local\Temp\654b1b7e0ab72f25833213fadaf8bac4d0c616c242b99525a722eee025a5adf3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1588 -ip 1588

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1588 -s 1144

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 204.10.160.169:80 204.10.160.169 tcp
US 8.8.8.8:53 169.160.10.204.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.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 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

C:\Users\Admin\Desktop\sexbombes.ini

MD5 020722cea174cdf2e504cdd0944e9935
SHA1 11efb296d9c118b4f7101173e0fd3e7927286dfc
SHA256 abf81fb4711b6f9b7ec09239c71a231876e85a9035d90385058f386d638f2f05
SHA512 72d4ab9ff93befd603c90fccb732a57f96ef0f0b66dab0ac6855e6a36314c6739b0d032162619cde1667e192591f502ecbdaf194dac5a10aeb2b302d851b1341

C:\Users\Admin\AppData\Local\Temp\nsn8DBB.tmp\System.dll

MD5 3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 fe582246792774c2c9dd15639ffa0aca90d6fd0b
SHA256 fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
SHA512 0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

memory/2868-351-0x0000000004050000-0x0000000004C81000-memory.dmp

memory/2868-352-0x00000000776E1000-0x0000000077801000-memory.dmp

memory/2868-353-0x0000000010004000-0x0000000010005000-memory.dmp

memory/2868-354-0x0000000004050000-0x0000000004C81000-memory.dmp

memory/1588-355-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1588-356-0x0000000001660000-0x0000000002291000-memory.dmp

memory/1588-357-0x0000000077768000-0x0000000077769000-memory.dmp

memory/1588-358-0x0000000077785000-0x0000000077786000-memory.dmp

memory/1588-359-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1588-361-0x0000000000401000-0x0000000000404000-memory.dmp

memory/1588-360-0x0000000001660000-0x0000000002291000-memory.dmp

memory/1588-362-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1588-363-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1588-365-0x00000000776E1000-0x0000000077801000-memory.dmp

memory/1588-364-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1588-367-0x0000000000401000-0x0000000000404000-memory.dmp

memory/1588-366-0x0000000001660000-0x0000000002291000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-23 01:24

Reported

2024-10-23 01:27

Platform

win7-20240903-en

Max time kernel

119s

Max time network

121s

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 1804 -s 224

Network

N/A

Files

N/A