Analysis
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max time kernel
136s -
max time network
133s -
platform
windows10_x64 -
resource
win10v20201028 -
submitted
09-03-2021 01:59
Static task
static1
Behavioral task
behavioral1
Sample
SecuriteInfo.com.Heur.9116.3651.xls
Resource
win7v20201028
General
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Target
SecuriteInfo.com.Heur.9116.3651.xls
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Size
192KB
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MD5
befb4b4017d8e036a7483ee25786694b
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SHA1
44377e4fa145eb1f58c0ff56c40ee4bd2dc22389
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SHA256
99e92c56698e03ec37e5148b1e1f3affb48822d5f721b0a0d31d56f455f27bf9
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SHA512
04395e165ed1f435d48f056fade3b52e2e6718e90adcc39dd11d4964d0a0d34e98fcae6e42affbe782ea1b42515b4e0ef3110f36438ed1c19b61f4d49a16c3f2
Malware Config
Extracted
trickbot
100013
rob72
103.225.138.94:449
122.2.28.70:449
123.200.26.246:449
131.255.106.152:449
142.112.79.223:449
154.126.176.30:449
180.92.238.186:449
187.20.217.129:449
201.20.118.122:449
202.91.41.138:449
95.210.118.90:449
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autorunName:pwgrab
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
rundll32.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 3320 1144 rundll32.exe EXCEL.EXE -
Templ.dll packer 3 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/2648-11-0x0000000000280000-0x00000000002B9000-memory.dmp templ_dll behavioral2/memory/2648-12-0x00000000002E0000-0x0000000000317000-memory.dmp templ_dll behavioral2/memory/2648-14-0x0000000000E50000-0x0000000000E86000-memory.dmp templ_dll -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 2648 rundll32.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1144 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 732 wermgr.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
EXCEL.EXEpid process 1144 EXCEL.EXE 1144 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE 1144 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exedescription pid process target process PID 1144 wrote to memory of 3320 1144 EXCEL.EXE rundll32.exe PID 1144 wrote to memory of 3320 1144 EXCEL.EXE rundll32.exe PID 3320 wrote to memory of 2648 3320 rundll32.exe rundll32.exe PID 3320 wrote to memory of 2648 3320 rundll32.exe rundll32.exe PID 3320 wrote to memory of 2648 3320 rundll32.exe rundll32.exe PID 2648 wrote to memory of 1660 2648 rundll32.exe cmd.exe PID 2648 wrote to memory of 1660 2648 rundll32.exe cmd.exe PID 2648 wrote to memory of 1660 2648 rundll32.exe cmd.exe PID 2648 wrote to memory of 732 2648 rundll32.exe wermgr.exe PID 2648 wrote to memory of 732 2648 rundll32.exe wermgr.exe PID 2648 wrote to memory of 732 2648 rundll32.exe wermgr.exe PID 2648 wrote to memory of 732 2648 rundll32.exe wermgr.exe
Processes
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Heur.9116.3651.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1144 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Frost.bitte,DllRegisterServer12⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3320 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Frost.bitte,DllRegisterServer13⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2648 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe4⤵PID:1660
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe4⤵
- Suspicious use of AdjustPrivilegeToken
PID:732
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\Frost.bitteMD5
5af074c9bec5f91119e5deac1964207a
SHA1c2ea2dbcf5393dbc02fb5a8f8040b80aee8d546d
SHA25668eb43b8e87657e66f8b25400926f55498bfde185252ee24eb068928d698e90d
SHA512dbfdb8145992efe00f9f8d1a82da9113ec722a6e5a135b652c087400cb75a05a7323314ec26f82d3b0483b65213e00f4309d25770c272b2db419dedb0f062089
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\Users\Admin\Frost.bitteMD5
5af074c9bec5f91119e5deac1964207a
SHA1c2ea2dbcf5393dbc02fb5a8f8040b80aee8d546d
SHA25668eb43b8e87657e66f8b25400926f55498bfde185252ee24eb068928d698e90d
SHA512dbfdb8145992efe00f9f8d1a82da9113ec722a6e5a135b652c087400cb75a05a7323314ec26f82d3b0483b65213e00f4309d25770c272b2db419dedb0f062089
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memory/732-18-0x0000022C6C100000-0x0000022C6C128000-memory.dmpFilesize
160KB
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memory/732-19-0x0000022C6C140000-0x0000022C6C141000-memory.dmpFilesize
4KB
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memory/732-13-0x0000000000000000-mapping.dmp
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memory/1144-6-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmpFilesize
64KB
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memory/1144-5-0x00007FFB55EB0000-0x00007FFB564E7000-memory.dmpFilesize
6.2MB
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memory/1144-3-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmpFilesize
64KB
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memory/1144-2-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmpFilesize
64KB
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memory/1144-4-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmpFilesize
64KB
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memory/2648-14-0x0000000000E50000-0x0000000000E86000-memory.dmpFilesize
216KB
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memory/2648-12-0x00000000002E0000-0x0000000000317000-memory.dmpFilesize
220KB
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memory/2648-15-0x0000000000F10000-0x0000000000F53000-memory.dmpFilesize
268KB
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memory/2648-16-0x0000000000FF0000-0x0000000000FF1000-memory.dmpFilesize
4KB
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memory/2648-17-0x0000000000AE1000-0x0000000000AE3000-memory.dmpFilesize
8KB
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memory/2648-11-0x0000000000280000-0x00000000002B9000-memory.dmpFilesize
228KB
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memory/2648-9-0x0000000000000000-mapping.dmp
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memory/2648-20-0x0000000010000000-0x0000000010037000-memory.dmpFilesize
220KB
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memory/3320-7-0x0000000000000000-mapping.dmp