Analysis
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max time kernel
148s -
max time network
147s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
12-05-2021 16:02
Behavioral task
behavioral1
Sample
59c9f346_by_Libranalysis.xls
Resource
win7v20210410
General
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Target
59c9f346_by_Libranalysis.xls
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Size
277KB
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MD5
59c9f3469b577cd8c4846cdf4d5e6695
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SHA1
4c7d119d29cbd08d0824c8794adf98b3d9151d2f
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SHA256
ecaba5d26b33586004c7de1821495e231a7c357a222715e9df199d969e2e9c58
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SHA512
349970a7f904b567982449a8f628d5e8881872c64893739581cc8b2d476ba47cf9187b4626a167adfa05520997122fe3c60e58eb444dd65c69efce41e93eebad
Malware Config
Extracted
http://koneckotechnology.com/netmons.dll
Extracted
trickbot
2000029
net15
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:pwgrabbName:pwgrabc
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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1504 1104 rundll32.exe EXCEL.EXE -
Templ.dll packer 3 IoCs
Detects Templ.dll packer which usually loads Trickbot.
Processes:
resource yara_rule behavioral1/memory/1504-66-0x0000000000260000-0x0000000000299000-memory.dmp templ_dll behavioral1/memory/1504-69-0x0000000000770000-0x00000000007A7000-memory.dmp templ_dll behavioral1/memory/1504-71-0x00000000001D0000-0x0000000000206000-memory.dmp templ_dll -
Downloads MZ/PE file
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Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 1504 rundll32.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
Processes:
EXCEL.EXEdescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
Processes:
EXCEL.EXEdescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1104 EXCEL.EXE -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
EXCEL.EXEpid process 1104 EXCEL.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
wermgr.exedescription pid process Token: SeDebugPrivilege 1064 wermgr.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
Processes:
EXCEL.EXEpid process 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE 1104 EXCEL.EXE -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
EXCEL.EXErundll32.exedescription pid process target process PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1104 wrote to memory of 1504 1104 EXCEL.EXE rundll32.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe PID 1504 wrote to memory of 1064 1504 rundll32.exe wermgr.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\59c9f346_by_Libranalysis.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1104 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\hsdksksk.iem,StartW2⤵
- Process spawned unexpected child process
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1504 -
C:\Windows\system32\wermgr.exeC:\Windows\system32\wermgr.exe3⤵
- Suspicious use of AdjustPrivilegeToken
PID:1064
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\hsdksksk.iemMD5
3bb9fe6b7e6b4d9c3a3c83de6aacd952
SHA157c343ae5e95fe702b759737522e85fe9e97fe5e
SHA256697dea4b154178e8de096c66167b539aa4465155d294b11765f1a1886eb7c56d
SHA5121e98417c6c48e0bf405ae5feda4193c91a3b385f387f33d79fba3dc6f7aa7571444885e6628b7ca6075887bfbec3bd17e0782c11a1c45a7d4b1a139849ca4df0
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\Users\Admin\hsdksksk.iemMD5
3bb9fe6b7e6b4d9c3a3c83de6aacd952
SHA157c343ae5e95fe702b759737522e85fe9e97fe5e
SHA256697dea4b154178e8de096c66167b539aa4465155d294b11765f1a1886eb7c56d
SHA5121e98417c6c48e0bf405ae5feda4193c91a3b385f387f33d79fba3dc6f7aa7571444885e6628b7ca6075887bfbec3bd17e0782c11a1c45a7d4b1a139849ca4df0
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memory/1064-72-0x0000000000000000-mapping.dmp
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memory/1064-77-0x0000000000190000-0x0000000000191000-memory.dmpFilesize
4KB
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memory/1064-76-0x00000000000F0000-0x0000000000118000-memory.dmpFilesize
160KB
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memory/1104-60-0x0000000071D01000-0x0000000071D03000-memory.dmpFilesize
8KB
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memory/1104-61-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
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memory/1104-59-0x000000002F3B1000-0x000000002F3B4000-memory.dmpFilesize
12KB
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memory/1504-63-0x0000000076E11000-0x0000000076E13000-memory.dmpFilesize
8KB
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memory/1504-71-0x00000000001D0000-0x0000000000206000-memory.dmpFilesize
216KB
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memory/1504-69-0x0000000000770000-0x00000000007A7000-memory.dmpFilesize
220KB
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memory/1504-73-0x00000000008E0000-0x0000000000923000-memory.dmpFilesize
268KB
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memory/1504-66-0x0000000000260000-0x0000000000299000-memory.dmpFilesize
228KB
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memory/1504-62-0x0000000000000000-mapping.dmp
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memory/1504-75-0x00000000003A1000-0x00000000003A3000-memory.dmpFilesize
8KB
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memory/1504-74-0x00000000003B0000-0x00000000003C1000-memory.dmpFilesize
68KB