Analysis
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max time kernel
56s -
max time network
58s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
01-02-2023 21:33
Static task
static1
Behavioral task
behavioral1
Sample
$RWDHJNF.exe
Resource
win10-20220812-en
General
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Target
$RWDHJNF.exe
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Size
1.2MB
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MD5
32c7e3347f8e532e675d154eb07f4ccf
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SHA1
5ca004745e2cdab497a7d6ef29c7efb25dc4046d
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SHA256
107bb526c374d6fd9f45317c0c16e83ab50076f2bcd630caf3d6794596fae69b
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SHA512
c82f3a01719f30cbb876a1395fda713ddba07b570bc188515b1b705e54e15a7cca5f71f741d51763f63aa5f40e00df06f63b341ed4db6b1be87b3ee59460dbe2
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SSDEEP
24576:Dh199z42ojP6a7HJlF9eu5XFQZSIZeNGdmEE8H17UBcegl:R9zbgH3euNFQZr/oEE892cfl
Malware Config
Signatures
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Loads dropped DLL 1 IoCs
pid Process 1756 javaw.exe -
Drops file in Program Files directory 12 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\symbols\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\dll\jvm.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\server\symbols\dll\ntdll.pdb javaw.exe File opened for modification C:\Program Files\Java\jre1.8.0_66\bin\ntdll.pdb javaw.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1756 javaw.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2456 wrote to memory of 1756 2456 $RWDHJNF.exe 66 PID 2456 wrote to memory of 1756 2456 $RWDHJNF.exe 66
Processes
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C:\Users\Admin\AppData\Local\Temp\$RWDHJNF.exe"C:\Users\Admin\AppData\Local\Temp\$RWDHJNF.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:2456 -
C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe"C:\Program Files\Java\jre1.8.0_66\bin\javaw.exe" -Xms32m -Xmx256m -jar "C:\Users\Admin\AppData\Local\Temp\$RWDHJNF.exe"2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
PID:1756
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
9KB
MD5697d496ac9f5aaab8ae025322358c61e
SHA12043eac8cdcc2e24b854af1eacd77a5f2a395a27
SHA256a7273a4cf48ab3413f2c186cc95a3367a73ce99f8d45329383219d4cc27003aa
SHA512b6702cd49a3af9f97f697565136f140692af9f8b271e672f2e91c920a23212b778583786f2377078117113647926338614a92c4a2423318b7a21ba2fe3a89838