Malware Analysis Report

2024-11-13 17:38

Sample ID 241108-bp638ssbmg
Target 629be165860d2336755de85467756639.bin
SHA256 71afac4f513f72e9e14993cc3a4cb4964fe4486e1b2f139cab7b89924f7aed44
Tags
guloader discovery downloader
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

71afac4f513f72e9e14993cc3a4cb4964fe4486e1b2f139cab7b89924f7aed44

Threat Level: Known bad

The file 629be165860d2336755de85467756639.bin was found to be: Known bad.

Malicious Activity Summary

guloader discovery downloader

Guloader family

Guloader,Cloudeye

Loads dropped DLL

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 01:20

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

2024-11-08 01:20

Reported

2024-11-08 01:22

Platform

win7-20240903-en

Max time kernel

146s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

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\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2552 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.evolutioncosmetics.com udp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp

Files

\Users\Admin\AppData\Local\Temp\nsdCD00.tmp\System.dll

MD5 be2621a78a13a56cf09e00dd98488360
SHA1 75f0539dc6af200a07cdb056cddddec595c6cfd2
SHA256 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
SHA512 b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1

memory/2552-31-0x00000000035E0000-0x0000000004B85000-memory.dmp

memory/2552-33-0x00000000777F0000-0x0000000077999000-memory.dmp

memory/2552-32-0x00000000777F1000-0x00000000778F2000-memory.dmp

memory/2552-35-0x00000000035E0000-0x0000000004B85000-memory.dmp

memory/2500-34-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2500-36-0x00000000777F0000-0x0000000077999000-memory.dmp

memory/2500-37-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-08 01:20

Reported

2024-11-08 01:22

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

Signatures

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.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\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe

"C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe"

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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 www.evolutioncosmetics.com udp
CA 69.27.100.185:443 www.evolutioncosmetics.com tcp
US 8.8.8.8:53 r10.o.lencr.org udp
GB 2.23.210.75:80 r10.o.lencr.org tcp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 185.100.27.69.in-addr.arpa udp
US 8.8.8.8:53 75.210.23.2.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 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 106.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nstC276.tmp\System.dll

MD5 be2621a78a13a56cf09e00dd98488360
SHA1 75f0539dc6af200a07cdb056cddddec595c6cfd2
SHA256 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
SHA512 b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1

memory/1148-31-0x0000000004220000-0x00000000057C5000-memory.dmp

memory/1148-32-0x0000000077991000-0x0000000077AB1000-memory.dmp

memory/1148-33-0x0000000010004000-0x0000000010005000-memory.dmp

memory/1148-35-0x0000000004220000-0x00000000057C5000-memory.dmp

memory/744-34-0x0000000000400000-0x0000000001654000-memory.dmp

memory/744-36-0x0000000001660000-0x0000000002C05000-memory.dmp

memory/744-37-0x0000000077A18000-0x0000000077A19000-memory.dmp

memory/744-38-0x0000000077A35000-0x0000000077A36000-memory.dmp

memory/744-45-0x0000000000400000-0x0000000001654000-memory.dmp

memory/744-46-0x0000000001660000-0x0000000002C05000-memory.dmp

memory/744-47-0x0000000000400000-0x0000000001654000-memory.dmp

memory/744-48-0x0000000077991000-0x0000000077AB1000-memory.dmp

memory/744-49-0x0000000000400000-0x0000000001654000-memory.dmp

memory/744-50-0x0000000000400000-0x0000000001654000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-08 01:20

Reported

2024-11-08 01:22

Platform

win7-20240903-en

Max time kernel

119s

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 2124 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-08 01:20

Reported

2024-11-08 01:22

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

139s

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 2420 wrote to memory of 1852 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2420 wrote to memory of 1852 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2420 wrote to memory of 1852 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 1852 -ip 1852

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1852 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.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 73.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 73.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

N/A