Malware Analysis Report

2024-11-13 17:38

Sample ID 241107-dzzg9avdqq
Target e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
SHA256 e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c
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

e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c

Threat Level: Known bad

The file e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe was found to be: Known bad.

Malicious Activity Summary

discovery guloader downloader

Guloader family

Guloader,Cloudeye

Loads dropped DLL

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Program crash

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-07 03:27

Signatures

Unsigned PE

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

2024-11-07 03:27

Reported

2024-11-07 03:30

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

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

2024-11-07 03:27

Reported

2024-11-07 03:29

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

149s

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 720 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 720 wrote to memory of 1684 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 720 wrote to memory of 1684 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 1684 -ip 1684

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1684 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 74.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-07 03:27

Reported

2024-11-07 03:30

Platform

win7-20241010-en

Max time kernel

147s

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 2128 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2128 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2128 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2128 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2128 wrote to memory of 1076 N/A C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe C:\Users\Admin\AppData\Local\Temp\e9617a78c93e6d5cdc1087dfa6e9bf9d63406e05b6b01135c189242a7c33718c.exe
PID 2128 wrote to memory of 1076 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

Files

\Users\Admin\AppData\Local\Temp\nse783D.tmp\System.dll

MD5 be2621a78a13a56cf09e00dd98488360
SHA1 75f0539dc6af200a07cdb056cddddec595c6cfd2
SHA256 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
SHA512 b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1

memory/2128-31-0x00000000031B0000-0x0000000004755000-memory.dmp

memory/2128-32-0x00000000031B0000-0x0000000004755000-memory.dmp

memory/2128-34-0x00000000775E0000-0x0000000077789000-memory.dmp

memory/2128-33-0x00000000775E1000-0x00000000776E2000-memory.dmp

memory/2128-35-0x00000000031B0000-0x0000000004755000-memory.dmp

memory/1076-36-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1076-37-0x00000000775E0000-0x0000000077789000-memory.dmp

memory/1076-38-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1076-40-0x00000000775E0000-0x0000000077789000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-07 03:27

Reported

2024-11-07 03:29

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

150s

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 8.8.8.8:53 154.239.44.20.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 74.32.126.40.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 8.8.8.8:53 185.100.27.69.in-addr.arpa udp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
US 8.8.8.8:53 75.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

C:\Users\Admin\AppData\Local\Temp\nsc8C43.tmp\System.dll

MD5 be2621a78a13a56cf09e00dd98488360
SHA1 75f0539dc6af200a07cdb056cddddec595c6cfd2
SHA256 852047023ba0cae91c7a43365878613cfb4e64e36ff98c460e113d5088d68ef5
SHA512 b80cf1f678e6885276b9a1bfd9227374b2eb9e38bb20446d52ebe2c3dba89764aa50cb4d49df51a974478f3364b5dbcbc5b4a16dc8f1123b40c89c01725be3d1

memory/1648-31-0x0000000004210000-0x00000000057B5000-memory.dmp

memory/1648-32-0x0000000077851000-0x0000000077971000-memory.dmp

memory/1648-33-0x0000000010004000-0x0000000010005000-memory.dmp

memory/1648-34-0x0000000004210000-0x00000000057B5000-memory.dmp

memory/3852-35-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3852-36-0x0000000001660000-0x0000000002C05000-memory.dmp

memory/3852-37-0x00000000778D8000-0x00000000778D9000-memory.dmp

memory/3852-38-0x00000000778F5000-0x00000000778F6000-memory.dmp

memory/3852-45-0x0000000001660000-0x0000000002C05000-memory.dmp

memory/3852-46-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3852-47-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3852-48-0x0000000077851000-0x0000000077971000-memory.dmp

memory/3852-49-0x0000000000400000-0x0000000001654000-memory.dmp