Analysis
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max time kernel
110s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
19-05-2023 10:37
Static task
static1
Behavioral task
behavioral1
Sample
conhost.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
conhost.exe
Resource
win10v2004-20230220-en
General
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Target
conhost.exe
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Size
4.0MB
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MD5
feccda803ece2e7a3b7e9798714ad47e
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SHA1
e97182adccf8a7692e6ad2614b0fb7fd3898a1a2
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SHA256
14529dca41abfea65abb51c84ec34ba0a951581586f98cef60213ae949a78320
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SHA512
dec5fd4d184772ca590333b2382706c6e5a7b5050f9ae98af813192e06500424870e8332a1406c763e5cc6d266ddd7e09280b6bf118392fa6edea6fab5843287
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SSDEEP
49152:jEjwvlIKv05z+UERnIcYmWjc3Cdh+5E9UFiqeb0/B1:RlhWzZ6hjEciqe
Malware Config
Extracted
laplas
http://185.223.93.251
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api_key
f0cd0c3938331a84425c6e784f577ccd87bb667cfdb44cc24f97f402ac5e15b7
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4916 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" conhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 24 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 4756 wrote to memory of 4916 4756 conhost.exe 83 PID 4756 wrote to memory of 4916 4756 conhost.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\conhost.exe"C:\Users\Admin\AppData\Local\Temp\conhost.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4756 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
PID:4916
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
722.1MB
MD534adc4380385cda1520c26f3740c9760
SHA1078bf9ee845b4d47c933cd50f7a35a7f59a4e6bb
SHA25603408bc88d7b0078a1b0ffc6ce557e0d4700e6a7c091e8d184658065157075d3
SHA5121aa8b86011d827a4b1116e6ea7094f6652969ba0854ac378e466ba530fd4b25af179448e6f304ba92fd5bbc4684fe9362395d2b2620d2c78c2e57f66eb945e3a
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Filesize
705.6MB
MD55f7307b0827918509253cc30c1bb0d75
SHA1080c666bde1978f4045d0a782168b605539232a3
SHA25620f29d8193d59b36034a865ea5817d2835fc037554a72df97420a4e60adad4d8
SHA512034c3260c163de13f7fc3db36a4fac2ae2f9aedb0458e91630c5c918c7d2dbf2538e7ee79d9d27910fa92e8bcdd417446a9c8e5317aeca026518a3dca67e4530