Analysis
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max time kernel
188s -
max time network
207s -
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, 22:08
Static task
static1
Behavioral task
behavioral1
Sample
b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe
Resource
win10v2004-20221111-en
General
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Target
b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe
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Size
732KB
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MD5
516988b83c8f25c047cc4bfaa24fd7eb
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SHA1
4ebb58d6c0c7162a82b8432a1b7ad9f7409ebdd7
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SHA256
b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6
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SHA512
1cea8a4c8f5728a6c3819f1309aaca03fa03cb8f818cd582265eea640ea8f7f7f4a9cd1c56dc6efa36a92230f6de8293a72cd05a098e4ff9cdcdc321afb81ecb
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SSDEEP
12288:FHs9LkboBd3ndY9giv39REcgWGGNOYH/3p31jaHjQ9OXQHeYMthFkXywWIz1um:FM90i3dtiFREcgWGGNOYHvXOQ9SYMDFG
Malware Config
Extracted
xtremerat
roma1996.no-ip.org
Signatures
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Detect XtremeRAT payload 7 IoCs
resource yara_rule behavioral2/memory/1812-139-0x0000000010000000-0x0000000010048000-memory.dmp family_xtremerat behavioral2/memory/1812-141-0x0000000010000000-0x0000000010048000-memory.dmp family_xtremerat behavioral2/memory/3064-142-0x0000000000000000-mapping.dmp family_xtremerat behavioral2/memory/1812-143-0x0000000010000000-0x0000000010048000-memory.dmp family_xtremerat behavioral2/memory/3028-144-0x0000000000000000-mapping.dmp family_xtremerat behavioral2/memory/3064-145-0x0000000010000000-0x0000000010048000-memory.dmp family_xtremerat behavioral2/memory/1812-146-0x0000000010000000-0x0000000010048000-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/1812-136-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/1812-138-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/1812-139-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/1812-141-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/1812-143-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/3064-145-0x0000000010000000-0x0000000010048000-memory.dmp upx behavioral2/memory/1812-146-0x0000000010000000-0x0000000010048000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3280 set thread context of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 4 IoCs
pid pid_target Process procid_target 3644 3064 WerFault.exe 81 5012 3028 WerFault.exe 82 116 3028 WerFault.exe 82 1880 3064 WerFault.exe 81 -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 3280 wrote to memory of 1812 3280 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 80 PID 1812 wrote to memory of 3064 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 81 PID 1812 wrote to memory of 3064 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 81 PID 1812 wrote to memory of 3064 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 81 PID 1812 wrote to memory of 3064 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 81 PID 1812 wrote to memory of 3028 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 82 PID 1812 wrote to memory of 3028 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 82 PID 1812 wrote to memory of 3028 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 82 PID 1812 wrote to memory of 3028 1812 b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe"C:\Users\Admin\AppData\Local\Temp\b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3280 -
C:\Users\Admin\AppData\Local\Temp\b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exeC:\Users\Admin\AppData\Local\Temp\b93c634e5494c31077e6d87e143c4da80517d3064910e9f786403394c52bd0f6.exe2⤵
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\svchost.exesvchost.exe3⤵PID:3064
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 4804⤵
- Program crash
PID:3644
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3064 -s 4884⤵
- Program crash
PID:1880
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C:\Windows\SysWOW64\notepad.exenotepad.exe3⤵PID:3028
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 4804⤵
- Program crash
PID:5012
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 4884⤵
- Program crash
PID:116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3064 -ip 30641⤵PID:2728
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3028 -ip 30281⤵PID:4612
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3064 -ip 30641⤵PID:4208
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3028 -ip 30281⤵PID:3360