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Analysis
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max time kernel
150s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
25/03/2023, 10:00 UTC
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
General
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Target
file.exe
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Size
276KB
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MD5
5decbf34d093ad55cee5e302a4c1507b
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SHA1
a96f0a93c910e7993c91b243d53a6918efe62067
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SHA256
f59f47316352a6fccc73f2276a272bf215f338dd0b05bfca7db591517e8f5c2c
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SHA512
d29c2d1399cd1f83a22897bfc10a1f8fe5332fbb23ca641802a8260488d54578b62c3ef36ebca4829a405322b9a9e252348a3f63a4c33d756fbb28a4aaba0d57
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SSDEEP
3072:CVGkCPdRRWVXAsvhwrFmlaOP6cUvLMgVrsli4DoD94aX7G/nCqHbgMCJQN0f5KRh:VdRWdSFmlJULMbk4DE94aXi/CqgTfm
Malware Config
Extracted
smokeloader
lab
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1472 set thread context of 4240 1472 file.exe 86 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4240 file.exe 4240 file.exe 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found 2524 Process not Found -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2524 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4240 file.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1472 wrote to memory of 4240 1472 file.exe 86 PID 1472 wrote to memory of 4240 1472 file.exe 86 PID 1472 wrote to memory of 4240 1472 file.exe 86 PID 1472 wrote to memory of 4240 1472 file.exe 86 PID 1472 wrote to memory of 4240 1472 file.exe 86 PID 1472 wrote to memory of 4240 1472 file.exe 86 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1472 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4240
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Network
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Remote address:8.8.8.8:53Request8.3.197.209.in-addr.arpaIN PTRResponse8.3.197.209.in-addr.arpaIN PTRvip0x008map2sslhwcdnnet
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Remote address:8.8.8.8:53Request123.108.74.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request108.211.229.192.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request210.81.184.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request154.239.44.20.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request196.249.167.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Requesthost-file-host6.comIN AResponsehost-file-host6.comIN A185.246.221.154
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Remote address:185.246.221.154:80RequestPOST / HTTP/1.1
Connection: Keep-Alive
Content-Type: application/x-www-form-urlencoded
Accept: */*
Referer: http://tbmut.com/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; Trident/7.0; rv:11.0) like Gecko
Content-Length: 147
Host: host-file-host6.com
ResponseHTTP/1.1 200 OK
Date: Sat, 25 Mar 2023 10:00:32 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
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Remote address:8.8.8.8:53Requesthost-host-file8.comIN AResponse
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Remote address:8.8.8.8:53Requesthost-host-file8.comIN AResponse
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Remote address:8.8.8.8:53Requesthost-host-file8.comIN AResponse
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Remote address:8.8.8.8:53Requesthost-host-file8.comIN AResponse
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Remote address:8.8.8.8:53Request154.221.246.185.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request176.122.125.40.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request64.13.109.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request199.176.139.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request199.176.139.52.in-addr.arpaIN PTRResponse
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Remote address:8.8.8.8:53Request177.238.32.23.in-addr.arpaIN PTRResponse177.238.32.23.in-addr.arpaIN PTRa23-32-238-177deploystaticakamaitechnologiescom
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Remote address:8.8.8.8:53Request177.238.32.23.in-addr.arpaIN PTRResponse177.238.32.23.in-addr.arpaIN PTRa23-32-238-177deploystaticakamaitechnologiescom
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322 B 7
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686 B 402 B 6 5
HTTP Request
POST http://host-file-host6.com/HTTP Response
200 -
260 B 5
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46 B 390 B 1 1
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322 B 7
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322 B 7
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322 B 7
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322 B 7
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322 B 7
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322 B 7
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70 B 111 B 1 1
DNS Request
8.3.197.209.in-addr.arpa
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72 B 146 B 1 1
DNS Request
123.108.74.40.in-addr.arpa
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74 B 145 B 1 1
DNS Request
108.211.229.192.in-addr.arpa
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72 B 146 B 1 1
DNS Request
210.81.184.52.in-addr.arpa
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72 B 158 B 1 1
DNS Request
154.239.44.20.in-addr.arpa
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73 B 147 B 1 1
DNS Request
196.249.167.52.in-addr.arpa
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65 B 81 B 1 1
DNS Request
host-file-host6.com
DNS Response
185.246.221.154
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260 B 260 B 4 4
DNS Request
host-host-file8.com
DNS Request
host-host-file8.com
DNS Request
host-host-file8.com
DNS Request
host-host-file8.com
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74 B 149 B 1 1
DNS Request
154.221.246.185.in-addr.arpa
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73 B 159 B 1 1
DNS Request
176.122.125.40.in-addr.arpa
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71 B 145 B 1 1
DNS Request
64.13.109.52.in-addr.arpa
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146 B 318 B 2 2
DNS Request
199.176.139.52.in-addr.arpa
DNS Request
199.176.139.52.in-addr.arpa
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144 B 274 B 2 2
DNS Request
177.238.32.23.in-addr.arpa
DNS Request
177.238.32.23.in-addr.arpa