Analysis
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max time kernel
81s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
13-12-2022 10:11
Static task
static1
Behavioral task
behavioral1
Sample
DOC_FI7820.lnk
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
DOC_FI7820.lnk
Resource
win10v2004-20220812-en
Behavioral task
behavioral3
Sample
NewInvoice/NewInvoice.cmd
Resource
win7-20221111-en
Behavioral task
behavioral4
Sample
NewInvoice/NewInvoice.cmd
Resource
win10v2004-20221111-en
Behavioral task
behavioral5
Sample
NewInvoice/NewRules.dll
Resource
win7-20221111-en
Behavioral task
behavioral6
Sample
NewInvoice/NewRules.dll
Resource
win10v2004-20220812-en
General
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Target
NewInvoice/NewRules.dll
-
Size
733KB
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MD5
1b4eb3e5510b5f32c4ed5f9ba11288bd
-
SHA1
f91052aa0a9375422ee29a7756df4756fb759486
-
SHA256
678b2d1d0e5dc0e18f5f85abbed3d036c99fa9db8704676adaf9ec304b582523
-
SHA512
40f479618f6f8cc103cb2acb0890ef0833263a501a8a60f2c50eba5602540bd98c7c142eb01355962e5b8bad6d34bb42f31b11aa3f1d950bf2a3c2f82b7e6960
-
SSDEEP
12288:bx5BlbjoVPn84C8oSZTkwvFsaLJ5sU4gzplUWQnLI7QAeh+nqb7/ODsrETSeWBE:b/CP1jVtkBKzsU4gLUWZ7tqb72eR
Malware Config
Signatures
-
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2340 4984 WerFault.exe rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
rundll32.exedescription pid process target process PID 1232 wrote to memory of 4984 1232 rundll32.exe rundll32.exe PID 1232 wrote to memory of 4984 1232 rundll32.exe rundll32.exe PID 1232 wrote to memory of 4984 1232 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NewInvoice\NewRules.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\NewInvoice\NewRules.dll,#12⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 6003⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 4984 -ip 49841⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/4984-132-0x0000000000000000-mapping.dmp