Analysis
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max time kernel
141s -
max time network
97s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05-08-2024 21:33
Static task
static1
Behavioral task
behavioral1
Sample
v0.81_FlashBrowser_x64.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
v0.81_FlashBrowser_x64.exe
Resource
win10v2004-20240802-en
General
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Target
v0.81_FlashBrowser_x64.exe
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Size
67.9MB
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MD5
d044590bbe4a84781f4665bc5aaf883c
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SHA1
eab1a5f0969c4766b54b436aec1057981e93b142
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SHA256
ce573c0b8c54161b468056ab6c62214edea12b05c1c25e1bbb6e54ace8a703ec
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SHA512
746d036e662a7f6c5a2450ba1b4415b610f9bf27b1264051a5208bd8651e109e6a020d28323b1d73e6dfcf706806d5553886b45b8ceee6009648012f8880cc9d
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SSDEEP
1572864:zvVaMDheNapAdTpSE5qklfDPx8C/XJmYui2CYIfAY2Avs4m:BzZE5zl7J8aXAYN2C3AY2MsF
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2784 v0.81_FlashBrowser_x64.tmp -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language v0.81_FlashBrowser_x64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language v0.81_FlashBrowser_x64.tmp -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1504 wrote to memory of 2784 1504 v0.81_FlashBrowser_x64.exe 86 PID 1504 wrote to memory of 2784 1504 v0.81_FlashBrowser_x64.exe 86 PID 1504 wrote to memory of 2784 1504 v0.81_FlashBrowser_x64.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\v0.81_FlashBrowser_x64.exe"C:\Users\Admin\AppData\Local\Temp\v0.81_FlashBrowser_x64.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Users\Admin\AppData\Local\Temp\is-4VS19.tmp\v0.81_FlashBrowser_x64.tmp"C:\Users\Admin\AppData\Local\Temp\is-4VS19.tmp\v0.81_FlashBrowser_x64.tmp" /SL5="$90164,70142909,1135104,C:\Users\Admin\AppData\Local\Temp\v0.81_FlashBrowser_x64.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2784
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.2MB
MD515998f61d92d7535cdc9f6397164f699
SHA1515887a6ba23cc70e01e708917924cc74cf579b0
SHA25631cd09e3b00edff599cd745eabd6f0cff1518b1d32066f5f51385c2ab6eb5232
SHA512104ed9ea7adb10fe367422931ee0e52ac0a9dc2eaed03b04122b7d3eaf162a9a5a402e420426121615c0d6986e159541c3d00fa018f2b494b1b43cc3e4368198