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Analysis
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max time kernel
149s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/03/2024, 21:22
Static task
static1
Behavioral task
behavioral1
Sample
24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe
Resource
win10v2004-20240226-en
General
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Target
24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe
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Size
486KB
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MD5
b4f36542893c279919704e4cecab18a4
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SHA1
9a64584fa10222235468511afa5c412ea02dd50b
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SHA256
24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc
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SHA512
ec503111900e82c7d05de7483f0701163cc51c13a2a46eea9ab2dccc2be7cf624a19f53b35cdd2eb7b176ccc8c4890d8c0a613b645b65f6ef0eec52aa4c476f4
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SSDEEP
12288:hQlc87eqqV5e+wBV6O+eGDRkR9qr7nIRjZim5:hQSqqHeVBxQ89qrreVim5
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 1556 Netphost.exe 1956 ~2CAC.tmp 2588 grpccopy.exe -
Loads dropped DLL 3 IoCs
pid Process 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 1556 Netphost.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\EhStconv = "C:\\Users\\Admin\\AppData\\Roaming\\colosort\\Netphost.exe" 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\grpccopy.exe 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1556 Netphost.exe 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE 1180 Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1556 Netphost.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2860 wrote to memory of 1556 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 28 PID 2860 wrote to memory of 1556 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 28 PID 2860 wrote to memory of 1556 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 28 PID 2860 wrote to memory of 1556 2860 24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe 28 PID 1556 wrote to memory of 1956 1556 Netphost.exe 29 PID 1556 wrote to memory of 1956 1556 Netphost.exe 29 PID 1556 wrote to memory of 1956 1556 Netphost.exe 29 PID 1556 wrote to memory of 1956 1556 Netphost.exe 29 PID 1956 wrote to memory of 1180 1956 ~2CAC.tmp 21
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1180 -
C:\Users\Admin\AppData\Local\Temp\24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe"C:\Users\Admin\AppData\Local\Temp\24761ed58e91089601df6c6d9e3c5a8b3cd0b2fc7cbb5ff612ab8a3499c218fc.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2860 -
C:\Users\Admin\AppData\Roaming\colosort\Netphost.exe"C:\Users\Admin\AppData\Roaming\colosort"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556 -
C:\Users\Admin\AppData\Local\Temp\~2CAC.tmp1180 497672 1556 14⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1956
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C:\Windows\SysWOW64\grpccopy.exeC:\Windows\SysWOW64\grpccopy.exe -s1⤵
- Executes dropped EXE
PID:2588
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD586dc243576cf5c7445451af37631eea9
SHA199a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA25625d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4
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Filesize
486KB
MD528a44d69359c86afc305a874ef24271d
SHA15db33d68389415aac3b74ea3e195feaa33e014ad
SHA256b5ddd9106e0d180616ae08f1cf628e6077b2bbb16d0297b04950aab5827f0f1e
SHA51282955878ef39779e39a527bfdfb3e059a64c33bd0735a3e794768ba4f24bffe95f1440708b7bff58e8a909059412478adf98941ee8f3e5bf7dbbfdd72469df2a