Analysis
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max time kernel
137s -
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.6408.3847.xls
Resource
win7v20201028
General
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Target
SecuriteInfo.com.Heur.6408.3847.xls
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Size
192KB
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MD5
1457f0e25226d9cf6910c26fbab8ea02
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SHA1
623664b66c2ac1be3c810416fd6853cef2c77c30
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SHA256
a4a0ee536fd695e0535c18c64207f4a9d9c4fcc8ec1c824312030717ed7e0b4e
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SHA512
c88ca374d76d8e096e325b9a71349227ef3bd8be6dc4d045aa2bb49e905a95a0547e7103bdb52d976fbf64bd1cbd4b11bb692ae39c40077ede7ab67d5468404b
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 3928 3920 rundll32.exe EXCEL.EXE -
Templ.dll packer 3 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/1568-11-0x0000000004E20000-0x0000000004E59000-memory.dmp templ_dll behavioral2/memory/1568-12-0x0000000004E60000-0x0000000004E97000-memory.dmp templ_dll behavioral2/memory/1568-13-0x0000000004DE0000-0x0000000004E16000-memory.dmp templ_dll -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1568 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 3920 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 3992 wermgr.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE 3920 EXCEL.EXE -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exedescription pid process target process PID 3920 wrote to memory of 3928 3920 EXCEL.EXE rundll32.exe PID 3920 wrote to memory of 3928 3920 EXCEL.EXE rundll32.exe PID 3928 wrote to memory of 1568 3928 rundll32.exe rundll32.exe PID 3928 wrote to memory of 1568 3928 rundll32.exe rundll32.exe PID 3928 wrote to memory of 1568 3928 rundll32.exe rundll32.exe PID 1568 wrote to memory of 3272 1568 rundll32.exe cmd.exe PID 1568 wrote to memory of 3272 1568 rundll32.exe cmd.exe PID 1568 wrote to memory of 3272 1568 rundll32.exe cmd.exe PID 1568 wrote to memory of 3992 1568 rundll32.exe wermgr.exe PID 1568 wrote to memory of 3992 1568 rundll32.exe wermgr.exe PID 1568 wrote to memory of 3992 1568 rundll32.exe wermgr.exe PID 1568 wrote to memory of 3992 1568 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.6408.3847.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SYSTEM32\rundll32.exerundll32 ..\Frost.bitte,DllRegisterServer12⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\Frost.bitte,DllRegisterServer13⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1568 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe4⤵PID:3272
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3992
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/1568-12-0x0000000004E60000-0x0000000004E97000-memory.dmpFilesize
220KB
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memory/1568-16-0x00000000051F0000-0x0000000005233000-memory.dmpFilesize
268KB
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memory/1568-18-0x00000000052C1000-0x00000000052C3000-memory.dmpFilesize
8KB
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memory/1568-17-0x00000000052E0000-0x00000000052E1000-memory.dmpFilesize
4KB
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memory/1568-15-0x0000000010000000-0x0000000010037000-memory.dmpFilesize
220KB
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memory/1568-13-0x0000000004DE0000-0x0000000004E16000-memory.dmpFilesize
216KB
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memory/1568-9-0x0000000000000000-mapping.dmp
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memory/1568-11-0x0000000004E20000-0x0000000004E59000-memory.dmpFilesize
228KB
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memory/3920-6-0x00007FF90B840000-0x00007FF90BE77000-memory.dmpFilesize
6.2MB
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memory/3920-2-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmpFilesize
64KB
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memory/3920-5-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmpFilesize
64KB
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memory/3920-4-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmpFilesize
64KB
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memory/3920-3-0x00007FF8E7720000-0x00007FF8E7730000-memory.dmpFilesize
64KB
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memory/3928-7-0x0000000000000000-mapping.dmp
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memory/3992-14-0x0000000000000000-mapping.dmp
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memory/3992-19-0x00000139DD830000-0x00000139DD858000-memory.dmpFilesize
160KB
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memory/3992-20-0x00000139DD940000-0x00000139DD941000-memory.dmpFilesize
4KB