Analysis
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max time kernel
245s -
max time network
299s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
23/11/2022, 20:27
Behavioral task
behavioral1
Sample
8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe
Resource
win10v2004-20221111-en
General
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Target
8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe
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Size
27KB
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MD5
589b6259111cea353ece5a00fcddeb5f
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SHA1
dbede510bb820a26b7154e83d580dda0c3892114
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SHA256
8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438
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SHA512
a05e0acb1ed8023779fc6fb7e2ea052d9e33a5ea59fb15a6d6dbe63756fe5aea1a3e0bab0ca875cb47e502c1cea5aaabddffa37139b2fe19171366327ac9499d
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SSDEEP
768:3DvUGW+cwg39Sa4ee3nsCmOesTEOoANY:wGBcDB4z3VnesGh
Malware Config
Extracted
xtremerat
fons.no-ip.info
C:\Users\Publfons.no-ip.biz
Signatures
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Detect XtremeRAT payload 3 IoCs
resource yara_rule behavioral2/memory/3588-133-0x0000000000000000-mapping.dmp family_xtremerat behavioral2/memory/4688-134-0x0000000010000000-0x0000000010049000-memory.dmp family_xtremerat behavioral2/memory/3588-135-0x0000000010000000-0x0000000010049000-memory.dmp family_xtremerat -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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resource yara_rule behavioral2/memory/4688-132-0x0000000010000000-0x0000000010049000-memory.dmp upx behavioral2/memory/4688-134-0x0000000010000000-0x0000000010049000-memory.dmp upx behavioral2/memory/3588-135-0x0000000010000000-0x0000000010049000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 2 IoCs
pid pid_target Process procid_target 648 3588 WerFault.exe 81 3428 3588 WerFault.exe 81 -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4688 wrote to memory of 3588 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 81 PID 4688 wrote to memory of 3588 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 81 PID 4688 wrote to memory of 3588 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 81 PID 4688 wrote to memory of 3588 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 81 PID 4688 wrote to memory of 3452 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 82 PID 4688 wrote to memory of 3452 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 82 PID 4688 wrote to memory of 3452 4688 8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"C:\Users\Admin\AppData\Local\Temp\8e9db5a2df7bacb20ef8615c41b6ef136b9c37c169d2aed09dc879de4a589438.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:4688 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵PID:3588
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 4803⤵
- Program crash
PID:648
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 4883⤵
- Program crash
PID:3428
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"2⤵PID:3452
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3588 -ip 35881⤵PID:1720
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3588 -ip 35881⤵PID:3028