Analysis
- max time kernel
73s - max time network
73s - platform
windows7_x64 - resource
win7v20201028 - submitted
01/04/2021, 17:21
Static task
static1
Behavioral task
behavioral1
Sample
1529.xlsm
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
1529.xlsm
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
- Target 1529.xlsm
- Size 84KB
- Sample210401-b5fcqjbqda
- SHA256 4b9f640c6aa415313a2be2e97006ccc660eddbe181c01ebfe43d605de47c9abd
- MD5 4687ae23338247d145af493378e0fcde
- SHA1 c47faa4798420e23cf4cffd02f3cce9b9c705727
- SHA512 0fe11ea9b29510e77ad621facf2123aad8b87cbb578d35d4cf942418d3d591299706c244bed645dead07a3256c3120482aa3598656548fdfc04c6bcbdad12f12
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Language
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xlm4.0
Source
URLs
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xlm40.dropper
https://vts.us.com/ds/0104.gif
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xlm40.dropper
https://mundotecnologiasolar.com/ds/0104.gif
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xlm40.dropper
https://comosairdoburaco.com.br/ds/0104.gif
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xlm40.dropper
https://accesslinksgroup.com/ds/0104.gif
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xlm40.dropper
https://ponchokhana.com/ds/0104.gif
Signatures
- Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 840 1076 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1624 1076 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1676 1076 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1172 1076 rundll32.exe 24 Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process 1048 1076 rundll32.exe 24 - Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" EXCEL.EXE Set value (int) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" EXCEL.EXE Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" EXCEL.EXE Set value (str) \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel EXCEL.EXE - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1076 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE 1076 EXCEL.EXE - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 840 1076 EXCEL.EXE 31 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1624 1076 EXCEL.EXE 32 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1676 1076 EXCEL.EXE 33 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1172 1076 EXCEL.EXE 34 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35 PID 1076 wrote to memory of 1048 1076 EXCEL.EXE 35
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\1529.xlsm1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1076 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:840
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk1,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1624
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk2,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1676
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk3,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1172
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C:\Windows\SysWOW64\rundll32.exerundll32 ..\iekdhfe.dsk4,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:1048
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