Malware Analysis Report

2025-01-02 11:07

Sample ID 240314-12tq4sgg2y
Target c9bc1c0e17e64442ba6567d876cdd2c2
SHA256 7611cb160c5b7e528841bb714b2d7104707eee0006d2af626d29276a51c27469
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

7611cb160c5b7e528841bb714b2d7104707eee0006d2af626d29276a51c27469

Threat Level: Known bad

The file c9bc1c0e17e64442ba6567d876cdd2c2 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Loads dropped DLL

Executes dropped EXE

Deletes itself

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-14 22:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-14 22:09

Reported

2024-03-14 22:11

Platform

win7-20240215-en

Max time kernel

150s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.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\jucgsud N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Roaming\jucgsud

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe

"C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {94936DBC-4E6D-4FDA-A04D-415952746F40} S-1-5-21-2248906074-2862704502-246302768-1000:GHPZRGFC\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\jucgsud

C:\Users\Admin\AppData\Roaming\jucgsud

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2428 -s 124

Network

Country Destination Domain Proto
US 8.8.8.8:53 conceitosseg.com udp
US 8.8.8.8:53 integrasidata.com udp
SG 172.104.187.4:80 integrasidata.com tcp
US 8.8.8.8:53 ozentekstil.com udp
TR 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:443 ozentekstil.com tcp
TR 94.73.151.78:443 ozentekstil.com tcp
US 8.8.8.8:53 finbelportal.com udp
US 8.8.8.8:53 telanganadigital.com udp
US 192.64.119.13:80 telanganadigital.com tcp
US 8.8.8.8:53 www.telanganadigital.com udp
DE 91.195.240.19:80 www.telanganadigital.com tcp

Files

memory/2204-2-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

\Users\Admin\AppData\Local\Temp\CC4F.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2204-3-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2204-6-0x0000000000400000-0x0000000002C6A000-memory.dmp

memory/1184-7-0x0000000002490000-0x00000000024A5000-memory.dmp

memory/2204-8-0x0000000000400000-0x0000000002C6A000-memory.dmp

C:\Users\Admin\AppData\Roaming\jucgsud

MD5 c9bc1c0e17e64442ba6567d876cdd2c2
SHA1 e2f4a322b66bc12ce1433ac2270f2f1a036507d5
SHA256 7611cb160c5b7e528841bb714b2d7104707eee0006d2af626d29276a51c27469
SHA512 c339f281780ef482086e926eb445ed99e2f28f672c6acec351e52ba9a1d97b5dbec74c739f6505d1b137c70669da323956411dd89be9f84bc832fd504af4b4d7

memory/2428-18-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

memory/2428-19-0x0000000000400000-0x0000000002C6A000-memory.dmp

memory/2428-27-0x0000000002CE0000-0x0000000002DE0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-14 22:09

Reported

2024-03-14 22:11

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.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\saghbcj N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\saghbcj 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\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\saghbcj N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\saghbcj N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\saghbcj N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\saghbcj 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

Suspicious use of UnmapMainImage

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\c9bc1c0e17e64442ba6567d876cdd2c2.exe

"C:\Users\Admin\AppData\Local\Temp\c9bc1c0e17e64442ba6567d876cdd2c2.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3220 -ip 3220

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 392

C:\Users\Admin\AppData\Roaming\saghbcj

C:\Users\Admin\AppData\Roaming\saghbcj

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2896 -ip 2896

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2896 -s 376

Network

Country Destination Domain Proto
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 conceitosseg.com udp
US 8.8.8.8:53 integrasidata.com udp
SG 172.104.187.4:80 integrasidata.com tcp
US 8.8.8.8:53 ozentekstil.com udp
TR 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:443 ozentekstil.com tcp
US 8.8.8.8:53 4.187.104.172.in-addr.arpa udp
US 8.8.8.8:53 78.151.73.94.in-addr.arpa udp
US 8.8.8.8:53 finbelportal.com udp
US 8.8.8.8:53 telanganadigital.com udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 192.64.119.13:80 telanganadigital.com tcp
US 8.8.8.8:53 www.telanganadigital.com udp
DE 91.195.240.19:80 www.telanganadigital.com tcp
US 8.8.8.8:53 13.119.64.192.in-addr.arpa udp
US 8.8.8.8:53 19.240.195.91.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 42.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 178.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 17.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net 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 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp

Files

memory/3220-1-0x0000000002C90000-0x0000000002D90000-memory.dmp

memory/3220-2-0x0000000004870000-0x0000000004879000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\CC4F.tmp

MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

memory/3220-7-0x0000000000400000-0x0000000002C6A000-memory.dmp

memory/3528-8-0x0000000001180000-0x0000000001195000-memory.dmp

memory/3220-11-0x0000000000400000-0x0000000002C6A000-memory.dmp

C:\Users\Admin\AppData\Roaming\saghbcj

MD5 c9bc1c0e17e64442ba6567d876cdd2c2
SHA1 e2f4a322b66bc12ce1433ac2270f2f1a036507d5
SHA256 7611cb160c5b7e528841bb714b2d7104707eee0006d2af626d29276a51c27469
SHA512 c339f281780ef482086e926eb445ed99e2f28f672c6acec351e52ba9a1d97b5dbec74c739f6505d1b137c70669da323956411dd89be9f84bc832fd504af4b4d7

memory/2896-23-0x0000000002DB0000-0x0000000002EB0000-memory.dmp

memory/2896-24-0x0000000000400000-0x0000000002C6A000-memory.dmp

memory/3528-25-0x00000000010B0000-0x00000000010C5000-memory.dmp

memory/2896-28-0x0000000000400000-0x0000000002C6A000-memory.dmp