Analysis
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max time kernel
300s -
max time network
283s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
02-08-2023 02:37
Static task
static1
Behavioral task
behavioral1
Sample
Lang.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
Lang.exe
Resource
win10v2004-20230703-en
General
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Target
Lang.exe
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Size
3.9MB
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MD5
2aa0fe002aeee888c33dbb6864580e6c
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SHA1
e10a14cede8f2e48ccd6fb5111583fcf5156030a
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SHA256
e522454c7fb915cb65e42e67ea9890df5ead1356053e563c43a1603f669c6fa2
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SHA512
0598092827b729fa9720f4fbd61087323fce6fb7318fb286784fcc125c5e64d69a0d9cdb57ee11ca0f7474dffd17b7af647ef71affafdb0fc608b705bd66d1fd
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SSDEEP
98304:LdD7hTCd16KI1cqLrUmolDD/0z+lzZQ57j:LJ7F4wcYUdRzI7j
Malware Config
Extracted
laplas
http://185.209.161.89
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api_key
6a2714906f1325d666e4cf9f6269c2352ccfb7e7f1a23c114287dc69ddf27cb0
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2232 ntlhost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NTSystem = "C:\\Users\\Admin\\AppData\\Roaming\\NTSystem\\ntlhost.exe" Lang.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 1452 Lang.exe 2232 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 33 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1452 wrote to memory of 2232 1452 Lang.exe 86 PID 1452 wrote to memory of 2232 1452 Lang.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\Lang.exe"C:\Users\Admin\AppData\Local\Temp\Lang.exe"1⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:1452 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2232
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
828.9MB
MD5019edd6fea9ab58d35a53dcfe4115f5c
SHA1d839a20cd24b248302d708e88d37033c23e8961e
SHA256d05917fe1da49f7368b1f773e8c36e3f2fe849c39555c214ee1f6db292231e6a
SHA512585f20c21bbe2b7fe4a6e494af63e257d4c02eddfdfc4aef9320accf4d7f6dc629965ba52a060fc4b02803971277ed238f55d79d28be0575db858769ca41e6cf
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Filesize
828.9MB
MD5019edd6fea9ab58d35a53dcfe4115f5c
SHA1d839a20cd24b248302d708e88d37033c23e8961e
SHA256d05917fe1da49f7368b1f773e8c36e3f2fe849c39555c214ee1f6db292231e6a
SHA512585f20c21bbe2b7fe4a6e494af63e257d4c02eddfdfc4aef9320accf4d7f6dc629965ba52a060fc4b02803971277ed238f55d79d28be0575db858769ca41e6cf