Analysis
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max time kernel
143s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
22-04-2021 16:45
Behavioral task
behavioral1
Sample
Documents_66157387_188378863.xls
Resource
win7v20210408
General
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Target
Documents_66157387_188378863.xls
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Size
276KB
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MD5
f18b3516539d279662cfe7a779458716
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SHA1
c272a9fdc279634826f3cd6bbfaae3fef02782fe
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SHA256
0bc8e87eac781658b2c369eceef385c1190055452610848e5e003716464a27f7
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SHA512
d78db59ce81bc76e56ea55c66a7510f0ab0e3c15dc40e00622727fba54c349348602c427ae5998caf55528a20a3a6c7c1c835909cb66c271033536e7f5a358cf
Malware Config
Extracted
trickbot
2000029
che3
103.66.72.217:443
117.252.68.211:443
103.124.173.35:443
115.73.211.230:443
117.54.250.246:443
131.0.112.122:443
102.176.221.78:443
181.176.161.143:443
154.79.251.172:443
103.111.199.76:443
103.54.41.193:443
154.79.244.182:443
154.79.245.158:443
139.255.116.42:443
178.254.161.250:443
178.134.47.166:443
158.181.179.229:443
103.90.197.33:443
109.207.165.40:443
178.72.192.20:443
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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 3132 4024 rundll32.exe EXCEL.EXE -
Templ.dll packer 1 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral2/memory/1096-183-0x0000000004AC0000-0x0000000004CE6000-memory.dmp templ_dll -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1096 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 4024 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 3208 wermgr.exe -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE 4024 EXCEL.EXE -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
EXCEL.EXErundll32.exerundll32.exedescription pid process target process PID 4024 wrote to memory of 3132 4024 EXCEL.EXE rundll32.exe PID 4024 wrote to memory of 3132 4024 EXCEL.EXE rundll32.exe PID 3132 wrote to memory of 1096 3132 rundll32.exe rundll32.exe PID 3132 wrote to memory of 1096 3132 rundll32.exe rundll32.exe PID 3132 wrote to memory of 1096 3132 rundll32.exe rundll32.exe PID 1096 wrote to memory of 3208 1096 rundll32.exe wermgr.exe PID 1096 wrote to memory of 3208 1096 rundll32.exe wermgr.exe PID 1096 wrote to memory of 3208 1096 rundll32.exe wermgr.exe PID 1096 wrote to memory of 3208 1096 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\Documents_66157387_188378863.xls"1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\rundll32.exerundll32 ..\osnspmdf.dpa,StartW2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\osnspmdf.dpa,StartW3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe4⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\osnspmdf.dpaMD5
ac2b2336004ae55d79e225ae4634b9ca
SHA1a2399efd6b0c947820433f5b48542b61ce16f485
SHA256e2bba9e894cef89fd6b12d8c2bf19a139e0fd6a3e91684385f84866a6a10d5d8
SHA512188fe4701944f27464fe67b97552d35078f1d9fdd6478950ce21beb0dcae6938a79cf7bf7aa2068bb1576e1070e9f375cb61f9bb918b3dfa76d79ac18703f98c
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\Users\Admin\osnspmdf.dpaMD5
ac2b2336004ae55d79e225ae4634b9ca
SHA1a2399efd6b0c947820433f5b48542b61ce16f485
SHA256e2bba9e894cef89fd6b12d8c2bf19a139e0fd6a3e91684385f84866a6a10d5d8
SHA512188fe4701944f27464fe67b97552d35078f1d9fdd6478950ce21beb0dcae6938a79cf7bf7aa2068bb1576e1070e9f375cb61f9bb918b3dfa76d79ac18703f98c
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memory/1096-186-0x0000000002EB0000-0x0000000002F5E000-memory.dmpFilesize
696KB
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memory/1096-187-0x0000000010001000-0x0000000010003000-memory.dmpFilesize
8KB
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memory/1096-185-0x00000000049F0000-0x0000000004A33000-memory.dmpFilesize
268KB
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memory/1096-183-0x0000000004AC0000-0x0000000004CE6000-memory.dmpFilesize
2.1MB
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memory/1096-181-0x0000000000000000-mapping.dmp
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memory/3132-179-0x0000000000000000-mapping.dmp
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memory/3208-184-0x0000000000000000-mapping.dmp
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memory/3208-188-0x000002C3E5570000-0x000002C3E5598000-memory.dmpFilesize
160KB
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memory/3208-189-0x000002C3E5780000-0x000002C3E5781000-memory.dmpFilesize
4KB
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memory/4024-114-0x00007FF71D310000-0x00007FF7208C6000-memory.dmpFilesize
53.7MB
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memory/4024-123-0x00007FF94B310000-0x00007FF94D205000-memory.dmpFilesize
31.0MB
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memory/4024-122-0x00007FF94D210000-0x00007FF94E2FE000-memory.dmpFilesize
16.9MB
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memory/4024-119-0x00007FF92CFA0000-0x00007FF92CFB0000-memory.dmpFilesize
64KB
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memory/4024-118-0x00007FF92CFA0000-0x00007FF92CFB0000-memory.dmpFilesize
64KB
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memory/4024-117-0x00007FF92CFA0000-0x00007FF92CFB0000-memory.dmpFilesize
64KB
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memory/4024-116-0x00007FF92CFA0000-0x00007FF92CFB0000-memory.dmpFilesize
64KB
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memory/4024-115-0x00007FF92CFA0000-0x00007FF92CFB0000-memory.dmpFilesize
64KB