Analysis
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max time kernel
147s -
max time network
158s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
14-10-2023 00:18
Static task
static1
Behavioral task
behavioral1
Sample
docbit20230908.exe
Resource
win7-20230831-en
General
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Target
docbit20230908.exe
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Size
400.0MB
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MD5
81e0872e2be9487534ddd879b05e6f62
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SHA1
f97c783cb79036a9f2ff27e70a182f1b6919da18
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SHA256
d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0
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SHA512
40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90
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SSDEEP
98304:XZ7MAV7nUqgfiWsNkFi589X/JiQGTfZ5MULBhT8i4wv7:XZ7tVDUq6iPkFiedRiQePLBpUw
Malware Config
Extracted
bitrat
1.38
homesafe1000.duckdns.org:1234
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communication_password
81dc9bdb52d04dc20036dbd8313ed055
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tor_process
tor
Signatures
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Executes dropped EXE 1 IoCs
pid Process 348 svchost.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
pid Process 2816 RegAsm.exe 2816 RegAsm.exe 2816 RegAsm.exe 2816 RegAsm.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2412 set thread context of 2816 2412 docbit20230908.exe 30 PID 348 set thread context of 2800 348 svchost.exe 40 -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1012 schtasks.exe 1040 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2816 RegAsm.exe Token: SeShutdownPrivilege 2816 RegAsm.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2816 RegAsm.exe 2816 RegAsm.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2816 2412 docbit20230908.exe 30 PID 2412 wrote to memory of 2592 2412 docbit20230908.exe 31 PID 2412 wrote to memory of 2592 2412 docbit20230908.exe 31 PID 2412 wrote to memory of 2592 2412 docbit20230908.exe 31 PID 2412 wrote to memory of 2592 2412 docbit20230908.exe 31 PID 2412 wrote to memory of 2596 2412 docbit20230908.exe 33 PID 2412 wrote to memory of 2596 2412 docbit20230908.exe 33 PID 2412 wrote to memory of 2596 2412 docbit20230908.exe 33 PID 2412 wrote to memory of 2596 2412 docbit20230908.exe 33 PID 2412 wrote to memory of 2436 2412 docbit20230908.exe 34 PID 2412 wrote to memory of 2436 2412 docbit20230908.exe 34 PID 2412 wrote to memory of 2436 2412 docbit20230908.exe 34 PID 2412 wrote to memory of 2436 2412 docbit20230908.exe 34 PID 2596 wrote to memory of 1012 2596 cmd.exe 37 PID 2596 wrote to memory of 1012 2596 cmd.exe 37 PID 2596 wrote to memory of 1012 2596 cmd.exe 37 PID 2596 wrote to memory of 1012 2596 cmd.exe 37 PID 1936 wrote to memory of 348 1936 taskeng.exe 39 PID 1936 wrote to memory of 348 1936 taskeng.exe 39 PID 1936 wrote to memory of 348 1936 taskeng.exe 39 PID 1936 wrote to memory of 348 1936 taskeng.exe 39 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 2800 348 svchost.exe 40 PID 348 wrote to memory of 556 348 svchost.exe 41 PID 348 wrote to memory of 556 348 svchost.exe 41 PID 348 wrote to memory of 556 348 svchost.exe 41 PID 348 wrote to memory of 556 348 svchost.exe 41 PID 348 wrote to memory of 680 348 svchost.exe 42 PID 348 wrote to memory of 680 348 svchost.exe 42 PID 348 wrote to memory of 680 348 svchost.exe 42 PID 348 wrote to memory of 680 348 svchost.exe 42 PID 680 wrote to memory of 1040 680 cmd.exe 44 PID 680 wrote to memory of 1040 680 cmd.exe 44 PID 680 wrote to memory of 1040 680 cmd.exe 44 PID 680 wrote to memory of 1040 680 cmd.exe 44 PID 348 wrote to memory of 2156 348 svchost.exe 45 PID 348 wrote to memory of 2156 348 svchost.exe 45
Processes
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C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe"C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2412 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2816
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"2⤵PID:2592
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f2⤵
- Suspicious use of WriteProcessMemory
PID:2596 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Creates scheduled task(s)
PID:1012
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"2⤵PID:2436
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C:\Windows\system32\taskeng.exetaskeng.exe {B78B8073-EB2F-42CC-B170-E825A262ACE4} S-1-5-21-2180306848-1874213455-4093218721-1000:XEBBURHY\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Users\Admin\AppData\Roaming\svchost\svchost.exeC:\Users\Admin\AppData\Roaming\svchost\svchost.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:348 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵PID:2800
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C:\Windows\SysWOW64\cmd.exe"cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"3⤵PID:556
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C:\Windows\SysWOW64\cmd.exe"cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f3⤵
- Suspicious use of WriteProcessMemory
PID:680 -
C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f4⤵
- Creates scheduled task(s)
PID:1040
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C:\Windows\SysWOW64\cmd.exe"cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"3⤵PID:2156
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
400.0MB
MD581e0872e2be9487534ddd879b05e6f62
SHA1f97c783cb79036a9f2ff27e70a182f1b6919da18
SHA256d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0
SHA51240bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90
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Filesize
400.0MB
MD581e0872e2be9487534ddd879b05e6f62
SHA1f97c783cb79036a9f2ff27e70a182f1b6919da18
SHA256d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0
SHA51240bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90