Analysis
- max time kernel
185s - max time network
193s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
03/12/2022, 23:34
Static task
static1
Behavioral task
behavioral1
Sample
a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe
Resource
win7-20220812-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe
Resource
win10v2004-20221111-en
5 signatures
150 seconds
General
- Target a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe
- Size 19KB
- Sample221203-3krxasbc2z
- SHA256 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746
- MD5 5155b3348eaac23c21f17411e7c11a7b
- SHA1 0268c40e42b209d04f6e1568ff89075ebdbd330d
- SHA512 d68c4613395875deb9d8230e0c7a41fa2fe5daae0cced76001df50cde5d9bb63485a66535b68cc854c0094a12668f4653a618f7cb59e9831e4a3cf37b255d815
- SSDEEP 384:+sEHscYFQvWjX8ArOICZ3CTsroOkAuj6jAean7J:fEH8FQvcMA4ZtkOkSEeaF
- MD5 SHA1 SHA512 SSDEEP
Score
7/10
Malware Config
Signatures
- Loads dropped DLL 1 IoCs
pid Process 4224 rundll32.exe - Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\SysWOW64\ddfh29053.ini a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe File created C:\Windows\SysWOW64\rpcss.dll rundll32.exe File opened for modification C:\Windows\SysWOW64\rpcss.dll rundll32.exe File created C:\Windows\SysWOW64\ddfh29053.dll rundll32.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3360 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe 3360 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe 4224 rundll32.exe 4224 rundll32.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4224 rundll32.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 3360 wrote to memory of 2508 3360 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe 81 PID 3360 wrote to memory of 2508 3360 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe 81 PID 3360 wrote to memory of 2508 3360 a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe 81 PID 2508 wrote to memory of 4224 2508 cmd.exe 83 PID 2508 wrote to memory of 4224 2508 cmd.exe 83 PID 2508 wrote to memory of 4224 2508 cmd.exe 83 PID 4224 wrote to memory of 772 4224 rundll32.exe 46
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:772
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C:\Users\Admin\AppData\Local\Temp\a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe"C:\Users\Admin\AppData\Local\Temp\a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe"2⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3360 -
C:\Windows\SysWOW64\cmd.execmd /c C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~e571712.~~~ GetName C:\Users\Admin\AppData\Local\Temp\a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe3⤵
- Suspicious use of WriteProcessMemory
PID:2508 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\~e571712.~~~ GetName C:\Users\Admin\AppData\Local\Temp\a890c7f03354644ad7472271b440891c76dc6552e4ab36bffad1d42e24428746.exe4⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4224
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\~e571712.~~~
- Size 368KB
- SHA256 6a3ffe624cc37e7ec1c8de393ee253aa41f62bf81a681ce51df81cbf9d409571
- MD5 e5b0d61cbf3aa7c23cab160e7209d917
- SHA1 7a7c0ec2b0add7d99dd95e9c8ec16e64269a4f06
- SHA512 2bb9e3c1788c3bf12cc0cf33c7f0240f4b4e89cab5f32550083fd91c38f26351b2a87a8427f9da030d8bbaadde3797a2e13a15abffb508bb6023846310842e19
- SSDEEP 768:U2yxw9RH0/zKD4IDbG/lH/XRoLkmKn6LyXyU23ZmQosa6vGydHfQTz:nrRH0u4Ial+Lkmy6GXyjPa6vGyBfQTz
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\~e571712.~~~
- Size 368KB
- SHA256 6a3ffe624cc37e7ec1c8de393ee253aa41f62bf81a681ce51df81cbf9d409571
- MD5 e5b0d61cbf3aa7c23cab160e7209d917
- SHA1 7a7c0ec2b0add7d99dd95e9c8ec16e64269a4f06
- SHA512 2bb9e3c1788c3bf12cc0cf33c7f0240f4b4e89cab5f32550083fd91c38f26351b2a87a8427f9da030d8bbaadde3797a2e13a15abffb508bb6023846310842e19
- SSDEEP 768:U2yxw9RH0/zKD4IDbG/lH/XRoLkmKn6LyXyU23ZmQosa6vGydHfQTz:nrRH0u4Ial+Lkmy6GXyjPa6vGyBfQTz
- MD5 SHA1 SHA512 SSDEEP