Malware Analysis Report

2024-12-06 03:23

Sample ID 241024-ts9yeascld
Target PTHAV117X_2024-10-24_16_17_37.921.zip
SHA256 94ba462fd78d3561b0a7472c6d96eb62bd902b68a49c7ca0cb5b5a6c03796a8c
Tags
discovery guloader downloader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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 Overview

score
10/10

SHA256

94ba462fd78d3561b0a7472c6d96eb62bd902b68a49c7ca0cb5b5a6c03796a8c

Threat Level: Known bad

The file PTHAV117X_2024-10-24_16_17_37.921.zip was found to be: Known bad.

Malicious Activity Summary

discovery guloader downloader

Guloader,Cloudeye

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-24 16:20

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: behavioral3

Detonation Overview

Submitted

2024-10-24 16:20

Reported

2024-10-24 16:23

Platform

win7-20240903-en

Max time kernel

121s

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 2708 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-24 16:20

Reported

2024-10-24 18:45

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

153s

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 612 wrote to memory of 3136 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 612 wrote to memory of 3136 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 612 wrote to memory of 3136 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 432 -p 3136 -ip 3136

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.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 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.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 150.171.27.10:443 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

2024-10-24 16:20

Reported

2024-10-24 16:23

Platform

win7-20241010-en

Max time kernel

145s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\factura 563423.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\oecus\svante.Eft C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2620 set thread context of 1640 N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe C:\Users\Admin\AppData\Local\Temp\factura 563423.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\sankthansaftnerne\clodpoll.saf C:\Users\Admin\AppData\Local\Temp\factura 563423.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\factura 563423.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\factura 563423.exe

"C:\Users\Admin\AppData\Local\Temp\factura 563423.exe"

C:\Users\Admin\AppData\Local\Temp\factura 563423.exe

"C:\Users\Admin\AppData\Local\Temp\factura 563423.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

Files

C:\Users\Admin\Desktop\peripheries.lnk

MD5 1b5dba842f7f0d5f0a1c9fdfb670bfa8
SHA1 9dd9bf5e0eb756ab8dbdec0869b6b156700fc5bd
SHA256 3cdd4d8bb60d898851735427e4ea085161c09194da3dec593c1868cf59dbcebd
SHA512 f7bb2b820bfb352e769dc5991c13b769cc57d5e7c039cfccc223b90cc3c4068b70606ed210be80cb3441061c6c417bea788c03fb2cfc5ac3c5db7c6f741a59de

C:\Users\Admin\Desktop\peripheries.lnk

MD5 35051d8132b702d06ae92d716daa8325
SHA1 d780139bce873b9cea9f3d067d03dd0e2e43dc28
SHA256 8913c70de6fb9f789eb8c7c214d1ec534b2463173d634b57bb730fb931d04839
SHA512 afa2bc9a7b6aef6d9d10d94bf2530bf17e5681b863ba89e73a19a6181a569d2711b5cabf9bb7efae57a73aab9c7e1d43277a752a7637aa4477455d5de14f3aa6

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

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/2620-24644-0x0000000003040000-0x00000000048AB000-memory.dmp

memory/2620-24645-0x0000000003040000-0x00000000048AB000-memory.dmp

memory/2620-24646-0x0000000077381000-0x0000000077482000-memory.dmp

memory/2620-24647-0x0000000077380000-0x0000000077529000-memory.dmp

memory/2620-24649-0x0000000003040000-0x00000000048AB000-memory.dmp

memory/1640-24648-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1640-24650-0x0000000077380000-0x0000000077529000-memory.dmp

memory/1640-24651-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1640-24653-0x0000000077380000-0x0000000077529000-memory.dmp

memory/1640-24675-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1640-24677-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1640-24676-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-24 16:20

Reported

2024-10-24 18:45

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\factura 563423.exe"

Signatures

Guloader,Cloudeye

downloader guloader

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

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\oecus\svante.Eft C:\Users\Admin\AppData\Local\Temp\factura 563423.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\sankthansaftnerne\clodpoll.saf C:\Users\Admin\AppData\Local\Temp\factura 563423.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\factura 563423.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\factura 563423.exe

"C:\Users\Admin\AppData\Local\Temp\factura 563423.exe"

C:\Users\Admin\AppData\Local\Temp\factura 563423.exe

"C:\Users\Admin\AppData\Local\Temp\factura 563423.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 100.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 142.250.200.14:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.187.195:80 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 3.180.250.142.in-addr.arpa udp
US 8.8.8.8:53 14.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 142.250.187.193:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 193.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.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

C:\Users\Admin\Desktop\peripheries.lnk

MD5 5dc4ad7a57d61e337c8308682a2d5455
SHA1 590f8c3fd43b4c132a21d8f2053e78926bc84a84
SHA256 ddc0640e0542f2e17e939a673289d20b4cc2f826839a5c3ac38461149532f281
SHA512 711cf913de24ff30bdd3e2fffc4a685fc12283fed265e8e8da410a1bfb4ae1056b34d0807f163defeed06c5ab0bbb76d41a9c9d416ea4d9bc9ff1c225f721060

C:\Users\Admin\Desktop\peripheries.lnk

MD5 28553a2cf23b3c615d957e700605f9ac
SHA1 25d69c260c5c928b9d42381bb63c661766f16f17
SHA256 fe1e3dc6fd6b8781015de726dbf35f74b921c305d88b72b84246a086da0dd727
SHA512 0c8ebadfacacb151f407faa66f275b2e62847354a8c899261628df848fd0f9d14888fedfc4925b018c2cae26024a0934487ffa3b857799c47aed1f99a7b67ac7

C:\Users\Admin\AppData\Local\Temp\nslBA68.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/4652-24644-0x00000000032D0000-0x0000000004B3B000-memory.dmp

memory/4652-24645-0x0000000077961000-0x0000000077A81000-memory.dmp

memory/4652-24646-0x0000000010004000-0x0000000010005000-memory.dmp

memory/4652-24648-0x00000000032D0000-0x0000000004B3B000-memory.dmp

memory/372-24647-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24649-0x0000000001660000-0x0000000002ECB000-memory.dmp

memory/372-24650-0x00000000779E8000-0x00000000779E9000-memory.dmp

memory/372-24651-0x0000000077A05000-0x0000000077A06000-memory.dmp

memory/372-24664-0x0000000001660000-0x0000000002ECB000-memory.dmp

memory/372-24666-0x0000000000401000-0x0000000000404000-memory.dmp

memory/372-24665-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24667-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24668-0x0000000077961000-0x0000000077A81000-memory.dmp

memory/372-24669-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24670-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24671-0x0000000000401000-0x0000000000404000-memory.dmp

memory/372-24672-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24676-0x0000000000400000-0x0000000001654000-memory.dmp

memory/372-24678-0x0000000000401000-0x0000000000404000-memory.dmp

memory/372-24677-0x0000000001660000-0x0000000002ECB000-memory.dmp