Malware Analysis Report

2024-12-08 00:45

Sample ID 231220-tw3nhaahcr
Target e6e3028a84a32392db5d40c60d64a79b
SHA256 5ae6ad592f3806e2840611a519b023a8784e964dc7c9a242e74842e6db0a79d0
Tags
smokeloader pub3 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

5ae6ad592f3806e2840611a519b023a8784e964dc7c9a242e74842e6db0a79d0

Threat Level: Known bad

The file e6e3028a84a32392db5d40c60d64a79b was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Executes dropped EXE

Unsigned PE

Uses Task Scheduler COM API

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-20 16:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-20 16:25

Reported

2023-12-21 02:11

Platform

win7-20231215-en

Max time kernel

150s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.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\fbaecta N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\fbaecta N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\fbaecta N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\fbaecta N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\fbaecta N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2652 wrote to memory of 2592 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\fbaecta
PID 2652 wrote to memory of 2592 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\fbaecta
PID 2652 wrote to memory of 2592 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\fbaecta
PID 2652 wrote to memory of 2592 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\fbaecta

Processes

C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe

"C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {35DD2874-F2B1-443B-830B-DD3F6142C5B9} S-1-5-21-3818056530-936619650-3554021955-1000:SFVRQGEO\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\fbaecta

C:\Users\Admin\AppData\Roaming\fbaecta

Network

Country Destination Domain Proto
US 8.8.8.8:53 gmpeople.com udp
DE 3.64.163.50:80 gmpeople.com tcp
US 8.8.8.8:53 mile48.com udp
US 208.91.197.46:80 mile48.com tcp
US 8.8.8.8:53 lecanardstsornin.com udp
US 8.8.8.8:53 m3600.com udp
US 8.8.8.8:53 camasirx.com udp
TR 89.107.229.40:80 camasirx.com tcp

Files

memory/2156-3-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2156-2-0x0000000000020000-0x0000000000029000-memory.dmp

memory/2156-1-0x00000000009B0000-0x0000000000AB0000-memory.dmp

memory/2156-5-0x0000000000400000-0x0000000000870000-memory.dmp

memory/1252-4-0x0000000002D70000-0x0000000002D85000-memory.dmp

C:\Users\Admin\AppData\Roaming\fbaecta

MD5 dfc4e0dec637550b9e954e8d819ef545
SHA1 b3d5c412e6f87b582edaffe1f03d0728b8c9a94e
SHA256 f7c6e2feb987994ee79cd6796e69a2aecd5f9cd0c16b205973c45aa30e4de72a
SHA512 a940f0dde6c270a2a6fd1ed6704b2da94b3d0bff531b21ee3446fbf77e67be3350f3134357c45ba19be5ec805f78b3de99113090b29f012a109f7d4ed95094d8

C:\Users\Admin\AppData\Roaming\fbaecta

MD5 6df330b1ac8486975f3562b8f254ecd7
SHA1 d8489b83dfc814c73f4421240432600b48605a21
SHA256 397c49987de53d43a440fc7519a8a63da5b8642eb77fd94961e56deabd329e16
SHA512 862b6b6657c26a7ea3b593e80d3498f45938e317048692d768eb4d1c0e9527b0ffdb4b17b341159de26602657b9ec84cca72164de76e09f690127097097c1ef7

memory/2592-14-0x0000000000230000-0x0000000000330000-memory.dmp

memory/2592-15-0x0000000000400000-0x0000000000870000-memory.dmp

memory/2592-17-0x0000000000400000-0x0000000000870000-memory.dmp

memory/1252-16-0x0000000002E20000-0x0000000002E35000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-20 16:25

Reported

2023-12-21 02:12

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.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\faueage 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\e6e3028a84a32392db5d40c60d64a79b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\faueage N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\faueage N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\faueage N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\faueage N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
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Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe

"C:\Users\Admin\AppData\Local\Temp\e6e3028a84a32392db5d40c60d64a79b.exe"

C:\Users\Admin\AppData\Roaming\faueage

C:\Users\Admin\AppData\Roaming\faueage

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 19.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 gmpeople.com udp
DE 3.64.163.50:80 gmpeople.com tcp
US 8.8.8.8:53 mile48.com udp
US 208.91.197.46:80 mile48.com tcp
US 8.8.8.8:53 50.163.64.3.in-addr.arpa udp
US 8.8.8.8:53 lecanardstsornin.com udp
US 8.8.8.8:53 m3600.com udp
US 8.8.8.8:53 camasirx.com udp
TR 89.107.229.40:80 camasirx.com tcp
US 8.8.8.8:53 46.197.91.208.in-addr.arpa udp
US 8.8.8.8:53 40.229.107.89.in-addr.arpa udp
US 8.8.8.8:53 114.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp

Files

memory/5036-1-0x0000000000A40000-0x0000000000B40000-memory.dmp

memory/5036-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/5036-3-0x0000000000400000-0x0000000000870000-memory.dmp

memory/3516-4-0x0000000002830000-0x0000000002845000-memory.dmp

memory/5036-5-0x0000000000400000-0x0000000000870000-memory.dmp

C:\Users\Admin\AppData\Roaming\faueage

MD5 0a1472bf189132792f41a95dd4940a5c
SHA1 df955d6063120876087db564c03a249573ea4ceb
SHA256 6d261231c63ebcc8d96d4a027dbb20bbfd03d90651753ac56c1be2038482b192
SHA512 81fb72d2bf0fcfa7ec0527925afe8751bd259f5975ed91fa6fdbd9b77c5803243540d568e43583e5015c7dd96c6062ed96ae71fecdc21c39b6f064e7b377de71

C:\Users\Admin\AppData\Roaming\faueage

MD5 e6e3028a84a32392db5d40c60d64a79b
SHA1 9b6b9232d4104458e6d2293af4c923e423072e4a
SHA256 5ae6ad592f3806e2840611a519b023a8784e964dc7c9a242e74842e6db0a79d0
SHA512 2f17159bf47ded19aa5d22353fa2cf6d5324653224afbc88ccfbba44131dfd7c15c9f91bbf03f869fa4a766dcb459241238b8d637f668648dc4f33fcb648b85f

memory/3128-14-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

memory/3128-15-0x0000000000400000-0x0000000000870000-memory.dmp

memory/3516-16-0x00000000041E0000-0x00000000041F5000-memory.dmp

memory/3128-19-0x0000000000400000-0x0000000000870000-memory.dmp