Malware Analysis Report

2024-12-08 00:49

Sample ID 231229-17bsgsfcf5
Target 05666f1eeca6baa3ff6cd243ec856751
SHA256 f10f954113b29e4a6b683f2e928c289a7bbf4a1b858cd394e4d06a7d73b02120
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

f10f954113b29e4a6b683f2e928c289a7bbf4a1b858cd394e4d06a7d73b02120

Threat Level: Known bad

The file 05666f1eeca6baa3ff6cd243ec856751 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Executes dropped EXE

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-29 22:17

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2023-12-29 22:17

Reported

2023-12-30 09:20

Platform

win7-20231215-en

Max time kernel

112s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A 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\05666f1eeca6baa3ff6cd243ec856751.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe

"C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {60D943BC-E8A0-44A6-9680-C1395E527DFA} S-1-5-21-3818056530-936619650-3554021955-1000:SFVRQGEO\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\rgtafci

C:\Users\Admin\AppData\Roaming\rgtafci

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/1696-3-0x0000000000400000-0x0000000000904000-memory.dmp

memory/1696-2-0x0000000000020000-0x0000000000029000-memory.dmp

memory/1696-1-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

memory/1696-5-0x0000000000400000-0x0000000000904000-memory.dmp

memory/1220-4-0x00000000024C0000-0x00000000024D6000-memory.dmp

C:\Users\Admin\AppData\Roaming\rgtafci

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2220-14-0x0000000000AE0000-0x0000000000BE0000-memory.dmp

memory/2220-15-0x0000000000400000-0x0000000000904000-memory.dmp

memory/1220-16-0x00000000024F0000-0x0000000002506000-memory.dmp

memory/2220-17-0x0000000000400000-0x0000000000904000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-29 22:17

Reported

2023-12-30 09:21

Platform

win10v2004-20231215-en

Max time kernel

153s

Max time network

163s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.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\iubijdf 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\05666f1eeca6baa3ff6cd243ec856751.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\iubijdf N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\iubijdf N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\iubijdf N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\iubijdf 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\05666f1eeca6baa3ff6cd243ec856751.exe

"C:\Users\Admin\AppData\Local\Temp\05666f1eeca6baa3ff6cd243ec856751.exe"

C:\Users\Admin\AppData\Roaming\iubijdf

C:\Users\Admin\AppData\Roaming\iubijdf

Network

Country Destination Domain Proto
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.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 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.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 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 udp
US 92.123.241.104:80 tcp
US 92.123.241.104:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 32.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp

Files

memory/2416-1-0x0000000000B40000-0x0000000000C40000-memory.dmp

memory/2416-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/2416-3-0x0000000000400000-0x0000000000904000-memory.dmp

memory/2416-8-0x00000000001C0000-0x00000000001C9000-memory.dmp

memory/2416-5-0x0000000000400000-0x0000000000904000-memory.dmp

memory/3420-4-0x00000000025A0000-0x00000000025B6000-memory.dmp

C:\Users\Admin\AppData\Roaming\iubijdf

MD5 c684ba46d455da6079baef3130510992
SHA1 15dc2f402bdfb5268cfa89a34c6026b1b5e6bdbf
SHA256 91146e30987f45fc735becdeb0e592c32024fd2060acd0fa9757ae2e4434698b
SHA512 9002824e2b28bbc4276ef0e209a10dbd918f64fcc17f8dd5514b736e2c7d8c30102ed2b9f1e397cf9adb35c859042d92e7828fda960740bd1743696e3ce3c376

C:\Users\Admin\AppData\Roaming\iubijdf

MD5 5c7e67823ee4d2cd8c7614714cb11617
SHA1 3c007d6b73a98f5db0011cc6c5504001060c13de
SHA256 0fc9dbb6c7fd5cd21c5faf2e13bd188e81460a2e91856bd7a5a25dd25936f9cf
SHA512 6456c6d9761e17aea865b1c1f6257adfb4e6c65bd75ffb15765f2c4e6557d4e3f8b32a48f2ffc8b6f31e5728a4ce85d39fd0a6ad8e7a380e5803ce159bde7ef4

memory/2336-15-0x0000000000970000-0x0000000000A70000-memory.dmp

memory/2336-16-0x0000000000400000-0x0000000000904000-memory.dmp

memory/2336-18-0x0000000000400000-0x0000000000904000-memory.dmp

memory/3420-17-0x0000000000CD0000-0x0000000000CE6000-memory.dmp