Malware Analysis Report

2025-01-02 11:08

Sample ID 240309-s248vaca4x
Target bc2c52a3f341f8f93622247caf1851c3
SHA256 dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405
Tags
smokeloader pub1 backdoor trojan
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 Overview

score
10/10

SHA256

dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405

Threat Level: Known bad

The file bc2c52a3f341f8f93622247caf1851c3 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Executes dropped EXE

Deletes itself

Unsigned PE

Program crash

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-09 15:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-09 15:38

Reported

2024-03-09 15:40

Platform

win7-20240221-en

Max time kernel

150s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\eeabcfi N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\eeabcfi N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\eeabcfi N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\eeabcfi N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\eeabcfi N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 748 wrote to memory of 944 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\eeabcfi
PID 748 wrote to memory of 944 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\eeabcfi
PID 748 wrote to memory of 944 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\eeabcfi
PID 748 wrote to memory of 944 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\eeabcfi

Processes

C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe

"C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {B93AD76B-FF7A-48BF-8DCC-782CC24C8835} S-1-5-21-406356229-2805545415-1236085040-1000:IKJSPGIM\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\eeabcfi

C:\Users\Admin\AppData\Roaming\eeabcfi

Network

Country Destination Domain Proto
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp

Files

memory/2384-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

memory/2384-2-0x0000000000020000-0x0000000000029000-memory.dmp

memory/2384-3-0x0000000000400000-0x0000000000906000-memory.dmp

memory/2384-5-0x0000000000400000-0x0000000000906000-memory.dmp

memory/1272-4-0x0000000002AA0000-0x0000000002AB6000-memory.dmp

C:\Users\Admin\AppData\Roaming\eeabcfi

MD5 bc2c52a3f341f8f93622247caf1851c3
SHA1 f5350c12bf2e1efe8e28a47c317824fdf7ae77c4
SHA256 dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405
SHA512 e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

memory/944-14-0x0000000000A40000-0x0000000000B40000-memory.dmp

memory/944-15-0x0000000000400000-0x0000000000906000-memory.dmp

memory/1272-16-0x00000000029C0000-0x00000000029D6000-memory.dmp

memory/944-19-0x0000000000400000-0x0000000000906000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-09 15:38

Reported

2024-03-09 15:40

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\igdrhhd N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\igdrhhd N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\igdrhhd N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\igdrhhd N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\igdrhhd N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe

"C:\Users\Admin\AppData\Local\Temp\bc2c52a3f341f8f93622247caf1851c3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2112 -ip 2112

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2112 -s 368

C:\Users\Admin\AppData\Roaming\igdrhhd

C:\Users\Admin\AppData\Roaming\igdrhhd

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4652 -ip 4652

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 368

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 198.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 nasufmutlu.com udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 209.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 90.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 200.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 199.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 190.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 89.16.208.104.in-addr.arpa udp

Files

memory/2112-1-0x0000000000AF0000-0x0000000000BF0000-memory.dmp

memory/2112-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/2112-3-0x0000000000400000-0x0000000000906000-memory.dmp

memory/3536-4-0x0000000002BD0000-0x0000000002BE6000-memory.dmp

memory/2112-7-0x0000000000400000-0x0000000000906000-memory.dmp

C:\Users\Admin\AppData\Roaming\igdrhhd

MD5 bc2c52a3f341f8f93622247caf1851c3
SHA1 f5350c12bf2e1efe8e28a47c317824fdf7ae77c4
SHA256 dd1b37482a3895b21c34ce1b2062bd56d590f4e44dc0f61e9ad1e7685afdc405
SHA512 e6e0c12ee3d3480d2ad1da02718ea159c0eebe497d15b47c31ece8206db7b6ffa90cebb41b3e578a7f2dbe1a844af8730fff428fba2b46829f7a82aec98aecc2

memory/4652-14-0x0000000000960000-0x0000000000A60000-memory.dmp

memory/4652-15-0x0000000000400000-0x0000000000906000-memory.dmp

memory/3536-16-0x0000000000C40000-0x0000000000C56000-memory.dmp

memory/4652-19-0x0000000000400000-0x0000000000906000-memory.dmp