Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
07-05-2023 03:24
Static task
static1
Behavioral task
behavioral1
Sample
73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe
Resource
win7-20230220-en
General
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Target
73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe
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Size
3.0MB
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MD5
767368afad019d5edbe21da0624d0aeb
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SHA1
5679da5ac1514c7a73a790b23bea7ac972e0d2f8
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SHA256
73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b
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SHA512
5b397df629a76c57577e5dea05bb31df820aae61984b54986a13f058e9e13ed651921122819e2483d3546bd7b7fbf81f9c1370f10c90c15b6cc678f4f9cffaef
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SSDEEP
49152:mhhQZmZBmCB7jzyqnqlaHprubMKs4PTu4853wLPrs9Sirh67l+G5IkT6d+1X1pe:mXtZICB7jmq4AHMywLP4nrc5I3+l6
Malware Config
Extracted
laplas
http://45.159.189.33
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api_key
d1a05de376c0be1daa56dfb2715c8a0c5df8a111b8b31decc886df1e48db7c9c
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ ntlhost.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion ntlhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion ntlhost.exe -
Executes dropped EXE 1 IoCs
pid Process 2568 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" 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA ntlhost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2604 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe 2568 ntlhost.exe -
GoLang User-Agent 1 IoCs
Uses default user-agent string defined by GoLang HTTP packages.
description flow ioc HTTP User-Agent header 27 Go-http-client/1.1 -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2604 wrote to memory of 2568 2604 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe 83 PID 2604 wrote to memory of 2568 2604 73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe"C:\Users\Admin\AppData\Local\Temp\73341bc80c4983f7e88d3fc0e95b8746aa00cb8acba2b3e08776782a2d53941b.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exeC:\Users\Admin\AppData\Roaming\NTSystem\ntlhost.exe2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2568
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
623.4MB
MD53de6f78f9a24e6eb0084f5904b1b523b
SHA1d83746b6f501128f22fa986348ac0d1dfff09ef0
SHA2564905e4e8591b327143dca7186ee3bcfb5c52aa08f1dd749ad15afa9c1b4a15e7
SHA512d1f67c00bc335823f37d3161f606933dd7b0c9c838447e7928dcd4b312a9e82c40ee5ef1bedbeb42a127976462ac32fa38bf9a7c71f9e0d464e2b344c8f5bfbe
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Filesize
651.1MB
MD5981afabc00577b9fa0c5184c7194b3a5
SHA1504c07863b2d6f364cec395d766bc0d4e90aa25e
SHA25695e31bf18e1086b05eb4b7244dafda7c9686d81e1d2965ef5f5e97ba02b9a1b3
SHA51264b6da1efef5c847080e52c833dc81428bcc344b5565f0505dfa1bfe86ae3c0d1d111ae8cf1ed60b0e41e2a3546c4a7f80353f89f9247204cbe0705d25c50613