Analysis
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max time kernel
124s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
04-02-2024 16:18
Static task
static1
Behavioral task
behavioral1
Sample
8f9a9fa8eb2a1ac736d550dfb20730c5.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8f9a9fa8eb2a1ac736d550dfb20730c5.exe
Resource
win10v2004-20231222-en
General
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Target
8f9a9fa8eb2a1ac736d550dfb20730c5.exe
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Size
7.9MB
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MD5
8f9a9fa8eb2a1ac736d550dfb20730c5
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SHA1
1c8a178456752a2ef5d926ff858b03c7495f5fe4
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SHA256
ab58fcf41f468d22512910665ca2c2e01265fb295b6d3a6a93401f7208926206
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SHA512
3d4388a9341937f515211a7b64fc5d445136e98fa1f2e612741dc939aa6e100c7c3c3d8af891adcd48ee484c13f59a147cee84ee19a5859d4992c6b2638c1912
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SSDEEP
98304:loNH1oTiMUazLNzfzYUazSErc/ZLUazLNzfzYUazH:KNVoTiMJLBEJ6ZLJLBEJH
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2528 8f9a9fa8eb2a1ac736d550dfb20730c5.exe -
Executes dropped EXE 1 IoCs
pid Process 2528 8f9a9fa8eb2a1ac736d550dfb20730c5.exe -
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
flow ioc 14 pastebin.com 15 pastebin.com -
Program crash 14 IoCs
pid pid_target Process procid_target 5008 4032 WerFault.exe 28 4432 2528 WerFault.exe 94 1284 2528 WerFault.exe 94 1212 2528 WerFault.exe 94 1904 2528 WerFault.exe 94 876 2528 WerFault.exe 94 3896 2528 WerFault.exe 94 1184 2528 WerFault.exe 94 4740 2528 WerFault.exe 94 3192 2528 WerFault.exe 94 2680 2528 WerFault.exe 94 1288 2528 WerFault.exe 94 4744 2528 WerFault.exe 94 5108 2528 WerFault.exe 94 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2528 8f9a9fa8eb2a1ac736d550dfb20730c5.exe 2528 8f9a9fa8eb2a1ac736d550dfb20730c5.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 4032 8f9a9fa8eb2a1ac736d550dfb20730c5.exe -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 2528 8f9a9fa8eb2a1ac736d550dfb20730c5.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4032 wrote to memory of 2528 4032 8f9a9fa8eb2a1ac736d550dfb20730c5.exe 94 PID 4032 wrote to memory of 2528 4032 8f9a9fa8eb2a1ac736d550dfb20730c5.exe 94 PID 4032 wrote to memory of 2528 4032 8f9a9fa8eb2a1ac736d550dfb20730c5.exe 94
Processes
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C:\Users\Admin\AppData\Local\Temp\8f9a9fa8eb2a1ac736d550dfb20730c5.exe"C:\Users\Admin\AppData\Local\Temp\8f9a9fa8eb2a1ac736d550dfb20730c5.exe"1⤵
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4032 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 3482⤵
- Program crash
PID:5008
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C:\Users\Admin\AppData\Local\Temp\8f9a9fa8eb2a1ac736d550dfb20730c5.exeC:\Users\Admin\AppData\Local\Temp\8f9a9fa8eb2a1ac736d550dfb20730c5.exe2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
PID:2528 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 3443⤵
- Program crash
PID:4432
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 6363⤵
- Program crash
PID:1284
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 6443⤵
- Program crash
PID:1212
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 6843⤵
- Program crash
PID:1904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 6803⤵
- Program crash
PID:876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 8963⤵
- Program crash
PID:3896
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 14043⤵
- Program crash
PID:1184
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 14643⤵
- Program crash
PID:4740
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 16803⤵
- Program crash
PID:3192
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 15163⤵
- Program crash
PID:2680
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 15043⤵
- Program crash
PID:1288
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 15123⤵
- Program crash
PID:4744
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2528 -s 16883⤵
- Program crash
PID:5108
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4032 -ip 40321⤵PID:2232
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2528 -ip 25281⤵PID:2556
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2528 -ip 25281⤵PID:3672
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 2528 -ip 25281⤵PID:1924
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2528 -ip 25281⤵PID:4172
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2528 -ip 25281⤵PID:3004
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2528 -ip 25281⤵PID:832
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2528 -ip 25281⤵PID:4836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 2528 -ip 25281⤵PID:2748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2528 -ip 25281⤵PID:1128
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 580 -p 2528 -ip 25281⤵PID:4680
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2528 -ip 25281⤵PID:1520
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2528 -ip 25281⤵PID:3804
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2528 -ip 25281⤵PID:1916
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
314KB
MD5691224614c82ba8e885aab56399b07a2
SHA14d245eb0d151e83aeb5c1e405e3e46a434d1a4ae
SHA256781f0338a307101ec45ff19b1069685457aa0860f4cb3aa67d78d669910aa3dd
SHA5128adbb7e34235bdecee9e6f4d9a54a2ae8cf237aec99cda8e8f986ddefdde1be28b8fd7fcdf67f6591d812970a63b9d7be286df357b07b341a810c9de87aa3982