Analysis
-
max time kernel
125s -
max time network
123s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
12-03-2021 19:52
Behavioral task
behavioral1
Sample
document-1493660683.xls
Resource
win7v20201028
windows7_x64
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
document-1493660683.xls
Resource
win10v20201028
windows10_x64
0 signatures
0 seconds
General
-
Target
document-1493660683.xls
-
Size
138KB
-
MD5
14d530304d5dc7de3ac733668aada46b
-
SHA1
b2bea2224cecce48b64c6266567f00c826f12704
-
SHA256
043a3b64882b41ead3af3c2476b7d62ce11485897f77281755973dbf1701283b
-
SHA512
f6cf83f0fd6a54dd71c1962e13948330765122887ece92e602139f7c0359991a6f316700874177edaeca246a91b685ff80aaddf9bd7bc59f78b888a3be8b3716
Score
10/10
Malware Config
Extracted
Language
xlm4.0
Source
URLs
xlm40.dropper
http://gcfxb12aefoyn03epdoji.xyz/i.gif
Signatures
-
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 2016 1040 rundll32.exe EXCEL.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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel 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 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 (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 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 Key created \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt 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 -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 1040 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 3 IoCs
Processes:
EXCEL.EXEpid process 1040 EXCEL.EXE 1040 EXCEL.EXE 1040 EXCEL.EXE -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
EXCEL.EXEdescription pid process target process PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe PID 1040 wrote to memory of 2016 1040 EXCEL.EXE rundll32.exe
Processes
-
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\document-1493660683.xls1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1040 -
C:\Windows\SysWOW64\rundll32.exerundll32 ..\zfbfg.ere,DllRegisterServer2⤵
- Process spawned unexpected child process
PID:2016
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1040-2-0x000000002F8D1000-0x000000002F8D4000-memory.dmpFilesize
12KB
-
memory/1040-3-0x00000000715A1000-0x00000000715A3000-memory.dmpFilesize
8KB
-
memory/1040-4-0x000000005FFF0000-0x0000000060000000-memory.dmpFilesize
64KB
-
memory/1724-5-0x000007FEF7DF0000-0x000007FEF806A000-memory.dmpFilesize
2.5MB
-
memory/2016-6-0x0000000000000000-mapping.dmp
-
memory/2016-7-0x0000000076311000-0x0000000076313000-memory.dmpFilesize
8KB