735f4e4a46c441adc84d100d11eeeeca0de9ff4e1b50f3f957652e64f6b0e411

Analysis

max time kernel
162s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
24-11-2022 14:03

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General

Target

K1-3K2-2ؿбļ/02.ļ/01./4.�.xls
Size

188KB
MD5

66f85cabd399b02d8556444f6300d8b0
SHA1

846d9a8a90bc8d762798b8b5f0f7ac9fef190c1b
SHA256

46ba5abd46413c18bfee0a5cd797587c335baa4d6fde4ad35742174925598de1
SHA512

305945cdb0b19257c9e99f28b84cdee55a1b59c7039ee7a67841549291de433f763321b401127716791fb49a8df8a845cde58cbb70068d62e732f8bb31afae82
SSDEEP

3072:Yhq1gxv7yZmspH7+cclKisbqb+xTENDiVWxqg7yf7pFrSMW+56eOTWVbrzQ7ITkV:D1gxv7yZmspH7+cclKisbqb+xTENDiVp

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.execmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1460	952	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1748	952	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1144	952	cmd.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

952 EXCEL.EXE
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

pid	process
952	EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\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-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\K1-3K2-2ؿбļ\02.ļ\01.\6E0F6000\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

952 EXCEL.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

952 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

952 EXCEL.EXE
952 EXCEL.EXE
952 EXCEL.EXE
952 EXCEL.EXE
952 EXCEL.EXE

pid	process
952	EXCEL.EXE

pid	process
952	EXCEL.EXE

pid	process
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE
952	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 952 wrote to memory of 560	952	EXCEL.EXE	splwow64.exe
PID 952 wrote to memory of 560	952	EXCEL.EXE	splwow64.exe
PID 952 wrote to memory of 560	952	EXCEL.EXE	splwow64.exe
PID 952 wrote to memory of 560	952	EXCEL.EXE	splwow64.exe
PID 952 wrote to memory of 1460	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1460	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1460	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1460	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1748	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1748	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1748	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1748	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1144	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1144	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1144	952	EXCEL.EXE	cmd.exe
PID 952 wrote to memory of 1144	952	EXCEL.EXE	cmd.exe
PID 1460 wrote to memory of 1256	1460	cmd.exe	attrib.exe
PID 1460 wrote to memory of 1256	1460	cmd.exe	attrib.exe
PID 1460 wrote to memory of 1256	1460	cmd.exe	attrib.exe
PID 1460 wrote to memory of 1256	1460	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1256 attrib.exe

pid	process
1256	attrib.exe

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\K1-3K2-2ؿбļ\02.ļ\01.\4.�.xls
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:952

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:560

C:\Windows\SysWOW64\cmd.exe
C:\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:1460

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1256

C:\Windows\SysWOW64\cmd.exe
C:\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:1748

C:\Windows\SysWOW64\cmd.exe
C:\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:1144

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/560-59-0x0000000000000000-mapping.dmp

Download
memory/560-60-0x000007FEFBAC1000-0x000007FEFBAC3000-memory.dmp

Filesize
8KB

Download
memory/952-78-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/952-58-0x0000000075591000-0x0000000075593000-memory.dmp

Filesize
8KB

Download
memory/952-79-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-55-0x0000000071301000-0x0000000071303000-memory.dmp

Filesize
8KB

Download
memory/952-81-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-71-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-70-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-69-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-68-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-67-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-73-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-74-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-75-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-76-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-77-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-225-0x00000000722ED000-0x00000000722F8000-memory.dmp

Filesize
44KB

Download
memory/952-57-0x00000000722ED000-0x00000000722F8000-memory.dmp

Filesize
44KB

Download
memory/952-72-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-80-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-82-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-83-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-84-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-85-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-86-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-87-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-88-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-89-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-111-0x00000000007CC000-0x00000000007D0000-memory.dmp

Filesize
16KB

Download
memory/952-387-0x00000000722ED000-0x00000000722F8000-memory.dmp

Filesize
44KB

Download
memory/952-54-0x000000002F4E1000-0x000000002F4E4000-memory.dmp

Filesize
12KB

Download
memory/1144-223-0x0000000000000000-mapping.dmp

Download
memory/1256-224-0x0000000000000000-mapping.dmp

Download
memory/1460-221-0x0000000000000000-mapping.dmp

Download
memory/1748-222-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads