Malware Analysis Report

2024-12-06 03:20

Sample ID 241023-rvpddavdpc
Target rMactation.exe
SHA256 d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5
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

d4403b301fd83b63921be53b6d3e9dfab987ff2aa133511b3b2e1a4dcc22cdc5

Threat Level: Known bad

The file rMactation.exe 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 SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Drops file in Windows directory

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Enumerates physical storage devices

NSIS installer

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-23 14:31

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

2024-10-23 14:31

Reported

2024-10-23 14:33

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 2396 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-23 14:31

Reported

2024-10-23 14:33

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

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 1556 wrote to memory of 4084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1556 wrote to memory of 4084 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1556 wrote to memory of 4084 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 4084 -ip 4084

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4084 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 66.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 14:31

Reported

2024-10-23 14:33

Platform

win7-20240903-en

Max time kernel

121s

Max time network

125s

Command Line

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

Signatures

Guloader,Cloudeye

downloader guloader

Loads dropped DLL

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

Suspicious use of NtCreateThreadExHideFromDebugger

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2340 set thread context of 2816 N/A C:\Users\Admin\AppData\Local\Temp\rMactation.exe C:\Users\Admin\AppData\Local\Temp\rMactation.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\rMactation.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\rMactation.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\rMactation.exe N/A

Suspicious behavior: MapViewOfSection

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 142.250.187.206:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.178.3:80 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
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.18.190.73:80 crl.microsoft.com tcp

Files

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

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

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

MD5 30a685924a4d174029001bc63d2a9ec6
SHA1 242eeffbed6de36fb1b8a9fc657ae6fce67f97cb
SHA256 8f9ceee7ae5cb2b3ddcdf0191bb28ff938ee10351b32405c0e09e57efb1b70d8
SHA512 f6aae0f477a10aee3d9fdd6795ac282e5f4df7774240f4725530c87a2d249bd07b29d262dbd15a38d29228337fe9799d8598fbc9c7d3e7e33cbce57ce1f7ec4a

\Users\Admin\AppData\Local\Temp\nso894D.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/2340-24644-0x0000000003560000-0x0000000005FAC000-memory.dmp

memory/2340-24645-0x0000000076CD1000-0x0000000076DD2000-memory.dmp

memory/2340-24646-0x0000000003560000-0x0000000005FAC000-memory.dmp

memory/2340-24647-0x0000000076CD0000-0x0000000076E79000-memory.dmp

memory/2816-24650-0x0000000076CD0000-0x0000000076E79000-memory.dmp

memory/2340-24649-0x0000000003560000-0x0000000005FAC000-memory.dmp

memory/2816-24648-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24671-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24672-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24674-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24673-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24675-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24676-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24678-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2816-24683-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-23 14:31

Reported

2024-10-23 14:33

Platform

win10v2004-20241007-en

Max time kernel

138s

Max time network

129s

Command Line

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

Signatures

Guloader,Cloudeye

downloader guloader

Loads dropped DLL

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

Suspicious use of NtCreateThreadExHideFromDebugger

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

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1240 set thread context of 3632 N/A C:\Users\Admin\AppData\Local\Temp\rMactation.exe C:\Users\Admin\AppData\Local\Temp\rMactation.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\rMactation.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\rMactation.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\rMactation.exe N/A

Suspicious behavior: MapViewOfSection

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 67.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 73.209.201.84.in-addr.arpa udp
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
US 8.8.8.8:53 238.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 3.178.250.142.in-addr.arpa udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.178.3:80 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
US 8.8.8.8:53 97.201.58.216.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 150.171.28.10:443 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
US 8.8.8.8:53 udp

Files

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

MD5 321ec7855ff8a4059381bf6730b1f8a8
SHA1 aef9c868b14663162df24e81df6f49779345e0c6
SHA256 f7bf8cd87dc9c35cafcd3021c8b2016dd7334ac5366df34caa50da834a8bdd70
SHA512 5adaa8f27849a896858e0ccee960be443ee3ad0d5778cacc9e00f73ded4eab07d7a28d41cc47b82dae023ecc803a2f31ec6cb7aa5d684f148e6e677be590afe9

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

MD5 a401e5d8d1e38da782bb48864f82aab9
SHA1 69e150a07995bc7191e69c280a49cf5e93ff062b
SHA256 5e4faeb883d9752a5214e74eb6a5341e8be5754273f4727b4638125d0a945919
SHA512 1a6c51fd0784ff2fd6661d1d22aacfecbc79a23c32a267b599cdd2b331da2dc3d5d3ae896c621932a8a0aa2cba9bbcafdeb4ff78a46123937ed20f76b0fcd8f6

C:\Users\Admin\AppData\Local\Temp\nsp6D70.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/1240-24644-0x00000000032E0000-0x0000000005D2C000-memory.dmp

memory/1240-24645-0x00000000032E0000-0x0000000005D2C000-memory.dmp

memory/1240-24646-0x0000000077D01000-0x0000000077E21000-memory.dmp

memory/1240-24647-0x0000000077D01000-0x0000000077E21000-memory.dmp

memory/1240-24648-0x0000000010004000-0x0000000010005000-memory.dmp

memory/3632-24649-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1240-24650-0x00000000032E0000-0x0000000005D2C000-memory.dmp

memory/3632-24651-0x0000000001660000-0x00000000040AC000-memory.dmp

memory/3632-24664-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3632-24665-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3632-24666-0x0000000001660000-0x00000000040AC000-memory.dmp

memory/3632-24667-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3632-24668-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3632-24671-0x0000000000400000-0x0000000001654000-memory.dmp