Malware Analysis Report

2025-08-10 19:27

Sample ID 230714-n2vxysdd73
Target SecuriteInfo.com.FileRepMalware.16560.22720.exe
SHA256 4365ff3c93ee1faa413ab7cf6838884c449053479d3039e995a6cdfe590125e4
Tags
guloader smokeloader backdoor discovery downloader trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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 Overview

score
10/10

SHA256

4365ff3c93ee1faa413ab7cf6838884c449053479d3039e995a6cdfe590125e4

Threat Level: Known bad

The file SecuriteInfo.com.FileRepMalware.16560.22720.exe was found to be: Known bad.

Malicious Activity Summary

guloader smokeloader backdoor discovery downloader trojan

Guloader,Cloudeye

SmokeLoader

Deletes itself

Loads dropped DLL

Checks QEMU agent file

Checks installed software on the system

Drops file in System32 directory

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtCreateThreadExHideFromDebugger

Drops file in Program Files directory

Drops file in Windows directory

Enumerates physical storage devices

NSIS installer

Checks processor information in registry

Enumerates system info in registry

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Checks SCSI registry key(s)

Uses Task Scheduler COM API

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-14 11:54

Signatures

NSIS installer

installer
Description Indicator Process Target
N/A N/A N/A N/A
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Analysis: behavioral1

Detonation Overview

Submitted

2023-07-14 11:54

Reported

2023-07-14 11:56

Platform

win7-20230712-en

Max time kernel

150s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

Signatures

Guloader,Cloudeye

downloader guloader

SmokeLoader

trojan backdoor smokeloader

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Deletes itself

Description Indicator Process Target
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Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Checks installed software on the system

discovery

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2800 set thread context of 2500 N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\sansningerne.Unc C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Katje\falsebenet\Bike\Angivende.ini C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
File opened for modification C:\Windows\resources\0409\Hovedgaarde.For C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

Network

Country Destination Domain Proto
US 198.23.156.248:80 198.23.156.248 tcp
US 8.8.8.8:53 cletonmy.com udp
CA 172.105.103.207:80 cletonmy.com tcp
US 8.8.8.8:53 alpatrik.com udp
RU 185.244.180.69:80 alpatrik.com tcp

Files

\Users\Admin\AppData\Local\Temp\nsy88A1.tmp\System.dll

MD5 375e8a08471dc6f85f3828488b1147b3
SHA1 1941484ac710fc301a7d31d6f1345e32a21546af
SHA256 4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
SHA512 5ba29db13723ddf27b265a4548606274b850d076ae1f050c64044f8ccd020585ad766c85c3e20003a22f356875f76fb3679c89547b0962580d8e5a42b082b9a8

memory/2800-63-0x0000000003A50000-0x00000000051E1000-memory.dmp

memory/2800-64-0x0000000003A50000-0x00000000051E1000-memory.dmp

memory/2800-65-0x0000000077470000-0x0000000077619000-memory.dmp

memory/2800-66-0x0000000077660000-0x0000000077736000-memory.dmp

memory/2800-67-0x0000000010000000-0x0000000010006000-memory.dmp

memory/2500-68-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2500-69-0x0000000001470000-0x0000000002C01000-memory.dmp

memory/2500-70-0x0000000077470000-0x0000000077619000-memory.dmp

memory/2500-71-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2500-73-0x0000000001470000-0x0000000002C01000-memory.dmp

memory/2500-74-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2500-75-0x0000000001470000-0x0000000002C01000-memory.dmp

memory/2500-76-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1264-77-0x0000000002B40000-0x0000000002B56000-memory.dmp

memory/2500-78-0x0000000001470000-0x0000000002C01000-memory.dmp

memory/2500-81-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-14 11:54

Reported

2023-07-14 11:56

Platform

win10v2004-20230703-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

Signatures

Guloader,Cloudeye

downloader guloader

SmokeLoader

trojan backdoor smokeloader

Checks QEMU agent file

Description Indicator Process Target
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
File opened (read-only) C:\Program Files\Qemu-ga\qemu-ga.exe C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Checks installed software on the system

discovery

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{E8915A10-9613-4045-9AC5-45DC3AA3F663}.catalogItem C:\Windows\System32\svchost.exe N/A
File created C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat C:\Windows\System32\svchost.exe N/A
File opened for modification C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat C:\Windows\System32\svchost.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\sansningerne.Unc C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Katje\falsebenet\Bike\Angivende.ini C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
File opened for modification C:\Windows\resources\0409\Hovedgaarde.For C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\System32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\System32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\System32\svchost.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\System32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\System32\svchost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

C:\Windows\System32\svchost.exe

C:\Windows\System32\svchost.exe -k netsvcs -p

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe

"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileRepMalware.16560.22720.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 135.1.85.104.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 198.23.156.248:80 198.23.156.248 tcp
US 8.8.8.8:53 248.156.23.198.in-addr.arpa udp
US 8.8.8.8:53 cletonmy.com udp
CA 172.105.103.207:80 cletonmy.com tcp
US 8.8.8.8:53 alpatrik.com udp
RU 185.244.180.69:80 alpatrik.com tcp
US 8.8.8.8:53 69.180.244.185.in-addr.arpa udp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsr6468.tmp\System.dll

MD5 375e8a08471dc6f85f3828488b1147b3
SHA1 1941484ac710fc301a7d31d6f1345e32a21546af
SHA256 4c86b238e64ecfaabe322a70fd78db229a663ccc209920f3385596a6e3205f78
SHA512 5ba29db13723ddf27b265a4548606274b850d076ae1f050c64044f8ccd020585ad766c85c3e20003a22f356875f76fb3679c89547b0962580d8e5a42b082b9a8

memory/640-141-0x0000000004A50000-0x00000000061E1000-memory.dmp

memory/640-143-0x0000000004A50000-0x00000000061E1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\wsu9FAB.tmp

MD5 c01eaa0bdcd7c30a42bbb35a9acbf574
SHA1 0aee3e1b873e41d040f1991819d0027b6cc68f54
SHA256 32297224427103aa1834dba276bf5d49cd5dd6bda0291422e47ad0d0706c6d40
SHA512 d26ff775ad39425933cd3df92209faa53ec5b701e65bfbcccc64ce8dd3e79f619a9bad7cc975a98a95f2006ae89e50551877fc315a3050e48d5ab89e0802e2b7

C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\InstallAgent\Checkpoints\9NCBCSZSJRSB.dat

MD5 fcf69b7c66858ca81004756f45598f76
SHA1 3daed9d03545261f5ecc3f95e3069f57b6256c80
SHA256 43e7c454dafb6c635980c1074fd8308755a241a69d8abb7c1b382a01db6866e1
SHA512 659914f01c9bc4e4df73c2c26950e19d73f80f9cea417939cc599ed51b3ce895a001224677db03bd61c5b16bfb32de50803e2f5305216f8bc0e75709ae799c37

memory/640-175-0x0000000077DA1000-0x0000000077EC1000-memory.dmp

memory/640-176-0x0000000010000000-0x0000000010006000-memory.dmp

memory/3500-177-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3500-178-0x0000000001660000-0x0000000002DF1000-memory.dmp

memory/3500-179-0x0000000001660000-0x0000000002DF1000-memory.dmp

memory/3500-180-0x0000000077E28000-0x0000000077E29000-memory.dmp

memory/3500-181-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3500-182-0x0000000001660000-0x0000000002DF1000-memory.dmp

memory/3500-183-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3168-184-0x0000000002B30000-0x0000000002B46000-memory.dmp

memory/3500-185-0x0000000001660000-0x0000000002DF1000-memory.dmp

memory/3500-188-0x0000000000400000-0x0000000001654000-memory.dmp

memory/3500-189-0x0000000077DA1000-0x0000000077EC1000-memory.dmp