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Analysis
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max time kernel
197s -
max time network
214s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
04/12/2022, 02:56
Static task
static1
Behavioral task
behavioral1
Sample
a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe
Resource
win10v2004-20221111-en
General
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Target
a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe
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Size
1.5MB
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MD5
87150f1823d978c6f64292f49a7fc476
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SHA1
b83926e4f0799afc96e83e7521cc4b8fd266773b
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SHA256
a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076
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SHA512
91206bc6380145cbdf8bd361b83195a2109f1c4ce749566c852cf11c0557769e6cf83b800ffd4b220ccdde95908046c2713b901c96568a80cae5ee6a890cc26c
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SSDEEP
24576:yy4e+kpDN5NoJndLG4mnAYYzWne8cJ3Jf3Zp1hXYAKhb/tKXH4JWZ9ZXm:ZTDL6bqYzWdcJ3tZpGztOsWnZ
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1164 Rundll32.exe 4804 Rundll32.exe 3252 wrar380tr.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1164 set thread context of 4804 1164 Rundll32.exe 84 -
Program crash 1 IoCs
pid pid_target Process procid_target 4304 4804 WerFault.exe 84 -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1164 Rundll32.exe 3252 wrar380tr.exe 3252 wrar380tr.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 3832 wrote to memory of 1164 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 83 PID 3832 wrote to memory of 1164 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 83 PID 3832 wrote to memory of 1164 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 83 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 1164 wrote to memory of 4804 1164 Rundll32.exe 84 PID 3832 wrote to memory of 3252 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 87 PID 3832 wrote to memory of 3252 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 87 PID 3832 wrote to memory of 3252 3832 a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe"C:\Users\Admin\AppData\Local\Temp\a3c399845e33b7ea1ece84ecdbe3724ef069ff2429cbbd3c292b5dfb1a815076.exe"1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3832 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1164 -
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\Rundll32.exe3⤵
- Executes dropped EXE
PID:4804 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 5724⤵
- Program crash
PID:4304
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\wrar380tr.exe2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:3252
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4804 -ip 48041⤵PID:3300
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
108KB
MD59539a5e3098acdcc2f92157497cd6bbc
SHA103cf7395df74dc52b830ec07117aac9893e774cf
SHA256679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493
SHA5129acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1
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Filesize
108KB
MD59539a5e3098acdcc2f92157497cd6bbc
SHA103cf7395df74dc52b830ec07117aac9893e774cf
SHA256679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493
SHA5129acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1
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Filesize
108KB
MD59539a5e3098acdcc2f92157497cd6bbc
SHA103cf7395df74dc52b830ec07117aac9893e774cf
SHA256679c18b829ea991a846d141a50068f40ecbde3e8307e26d97b97f04782b6c493
SHA5129acd6788660813e2c5d46a00ae6c770341404ff51f025a345babd24aa616c0748726fd03265d11f745dd1ee467bd10a54b18b66f8e5a340056867986098ac1b1
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Filesize
1.4MB
MD54a285ba4158202cc3a064cfe9f1f2b45
SHA1ccd3ae603ad782a6de5c40b31dd73fd51646725d
SHA25656dbbe6eedb45676dde627587576afe27b7aab9c99d5f2a1a33fb321ea8d5348
SHA512baf59787e04c0688320d451e4b2bc707c3890176c0f3dcd2089d453886362a55bc8ba697ef45e529022d2cf138a91092d7640ba1be10553e70eada21250c2da6
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Filesize
1.4MB
MD54a285ba4158202cc3a064cfe9f1f2b45
SHA1ccd3ae603ad782a6de5c40b31dd73fd51646725d
SHA25656dbbe6eedb45676dde627587576afe27b7aab9c99d5f2a1a33fb321ea8d5348
SHA512baf59787e04c0688320d451e4b2bc707c3890176c0f3dcd2089d453886362a55bc8ba697ef45e529022d2cf138a91092d7640ba1be10553e70eada21250c2da6