Analysis
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max time kernel
149s -
max time network
101s -
platform
windows10-2004_x64 -
resource
win10v2004-20240419-en -
resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system -
submitted
04/05/2024, 05:11
Static task
static1
Behavioral task
behavioral1
Sample
f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe
Resource
win10v2004-20240419-en
General
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Target
f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe
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Size
31KB
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MD5
569c2842ce255827f792736233424f00
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SHA1
86df00cfad076e73a6a827d29b457f0c88fde484
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SHA256
f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7
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SHA512
8276c7a46254116388c38600eb5a726f20c50471d9cd0d6a5f40cc6de293be2190ff1debe003abfcb10ba2fc5e73e8b10dfc9c9b59f839130c20fc2117ad7982
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SSDEEP
768:/qPJtHA6C1VqahohtgVRNToV7TtRu8rM0wYVFl2g5coW58dO0xXHV2EfKYfdhNhO:/qnA6C1VqaqhtgVRNToV7TtRu8rM0wYu
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 3416 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3416 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2964 wrote to memory of 3416 2964 f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe 83 PID 2964 wrote to memory of 3416 2964 f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe 83 PID 2964 wrote to memory of 3416 2964 f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe"C:\Users\Admin\AppData\Local\Temp\f86cdb3e7f66cbc51d19c39036899520de2e2d8fd111c027a032ef324f0c74f7.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:3416
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
31KB
MD5b3053aee1661706b5379b6e21cdb0ab0
SHA11cb72cce118faa6d36267a6bd114836a845ebcb6
SHA256921887e89ce36c060c5162c5af0766f04abb155dc23506d9d066fed29a339c1d
SHA512980b4587b5fa57ea317c177eca3a604492701af6838c96c8811b0e436de90860120ed7655827facd207d2c222b6348fc9d26d1194317f201c01768425f7e30e4