Analysis
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max time kernel
142s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-09-2024 07:08
Behavioral task
behavioral1
Sample
中小学名单/2012农村中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
中小学名单/2012农村中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
中小学名单/2012农村小学.xls
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
中小学名单/2012农村小学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
中小学名单/2012城市中学.xls
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
中小学名单/2012城市中学.xls
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
中小学名单/2012城市小学.xls
Resource
win7-20240708-en
Behavioral task
behavioral8
Sample
中小学名单/2012城市小学.xls
Resource
win10v2004-20240802-en
General
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Target
中小学名单/2012农村小学.xls
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Size
182KB
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MD5
ccf770f2093cced383386b56564b0f8e
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SHA1
e38538e46f4fb1de705d8715c45d2cc7b1f652bb
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SHA256
7679e04cb643dd2981447a9aff08fabff0aa5da8e73befd11dfa6f1143d88a51
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SHA512
5cc78a13bdaf44972f2258b67b2175ffb2cf0c690f06cf8645266e77752c08c9ee35aa44f0965cf37cce0f99ec2ed109316a1f528f5876b05e7a1d3f5911e38c
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SSDEEP
3072:Dk67FJkxBRFryfLa9VbrzQ7wTk3aU0JtXwQuUyM:LaLoic
Malware Config
Signatures
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Process spawned unexpected child process 3 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.execmd.execmd.exedescription pid pid_target process target process Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1084 2676 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 4904 2676 cmd.exe EXCEL.EXE Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process 1428 2676 cmd.exe EXCEL.EXE -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\中小学名单\2012农村小学.xls office_xlm_macros -
Deletes itself 1 IoCs
Processes:
EXCEL.EXEpid process 2676 EXCEL.EXE -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE -
NTFS ADS 1 IoCs
Processes:
EXCEL.EXEdescription ioc process File created C:\Users\Admin\AppData\Local\Temp\中小学名单\AF775E00\:Zone.Identifier:$DATA EXCEL.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
EXCEL.EXEpid process 2676 EXCEL.EXE -
Suspicious use of SetWindowsHookEx 12 IoCs
Processes:
EXCEL.EXEpid process 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE 2676 EXCEL.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
EXCEL.EXEcmd.exedescription pid process target process PID 2676 wrote to memory of 1428 2676 EXCEL.EXE cmd.exe PID 2676 wrote to memory of 1428 2676 EXCEL.EXE cmd.exe PID 2676 wrote to memory of 4904 2676 EXCEL.EXE cmd.exe PID 2676 wrote to memory of 4904 2676 EXCEL.EXE cmd.exe PID 2676 wrote to memory of 1084 2676 EXCEL.EXE cmd.exe PID 2676 wrote to memory of 1084 2676 EXCEL.EXE cmd.exe PID 1428 wrote to memory of 4676 1428 cmd.exe attrib.exe PID 1428 wrote to memory of 4676 1428 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
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\中小学名单\2012农村小学.xls"1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Windows\system32\attrib.exeattrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"3⤵
- Views/modifies file attributes
PID:4676 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:4904 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"2⤵
- Process spawned unexpected child process
PID:1084
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
202KB
MD557442ee5abb39ae3818f0f0be68b1721
SHA1df2fdb7c8c6d0a03deb8de47f294951afa65239c
SHA256c7de711d96ac04cd6cfa5b46d1446bd888ec3183b480dfdf3ef760574f8cd542
SHA512a74287cf337daeba669bce90bbc688517c6d207fdbfc681cb059888bba09e6627a7e12f2fac90e4ef0bd44615c299256cc1e80e6da3cd1650daef4da1a84e284
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
Filesize1KB
MD5dce6f39a608cf765cd99bd6f415edeaa
SHA1a4a3d7a5ca51bf6af940b437c305e2fb3ca9be9d
SHA2563f204ec664a15f5b574be4ac8d3819ba6ff3eee4174a300dbf1f8b927238c610
SHA512a6b3ed7473b2eb352eb72059e3a016e31a6c0d0ded7d6f60363de10f544251c6026fbb7647bb7492c9df7acfa1a3813473470d05e2d9325d239115087a2c9849