781235d1ca9b542ec2657113d3471a5cfd4cf7b0d0d531d04696ea27735d4e6e

General

Target

781235d1ca9b542ec2657113d3471a5cfd4cf7b0d0d531d04696ea27735d4e6e.xls
Size

150KB
MD5

4554c09a6eeb2c46b74d94283b25627b
SHA1

1a255760e8343225accffe055bdf173402bef643
SHA256

781235d1ca9b542ec2657113d3471a5cfd4cf7b0d0d531d04696ea27735d4e6e
SHA512

b0eab1403f462f584763422d6447c3e583ed8016b3c64d0f26fc8c2f70e20b89878d20f3c41395e78eaa87bec98a928f79176af825ac50f150681204f0e2465c
SSDEEP

3072:ABJuRoPuNXoJbXd0QdAgAG3EOSq6/cgfpUCIdf2jcc0lbxOKTDgq:GJuRoPuNXoJbXd0QdAgAG3EOSq6/cgfs

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1444	860	cmd.exe	27
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1312	860	cmd.exe	27
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	336	860	cmd.exe	27

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

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
860	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 860 wrote to memory of 864	860	EXCEL.EXE	28
PID 860 wrote to memory of 864	860	EXCEL.EXE	28
PID 860 wrote to memory of 864	860	EXCEL.EXE	28
PID 860 wrote to memory of 864	860	EXCEL.EXE	28
PID 860 wrote to memory of 1444	860	EXCEL.EXE	29
PID 860 wrote to memory of 1444	860	EXCEL.EXE	29
PID 860 wrote to memory of 1444	860	EXCEL.EXE	29
PID 860 wrote to memory of 1444	860	EXCEL.EXE	29
PID 860 wrote to memory of 1312	860	EXCEL.EXE	30
PID 860 wrote to memory of 1312	860	EXCEL.EXE	30
PID 860 wrote to memory of 1312	860	EXCEL.EXE	30
PID 860 wrote to memory of 1312	860	EXCEL.EXE	30
PID 860 wrote to memory of 336	860	EXCEL.EXE	33
PID 860 wrote to memory of 336	860	EXCEL.EXE	33
PID 860 wrote to memory of 336	860	EXCEL.EXE	33
PID 860 wrote to memory of 336	860	EXCEL.EXE	33
PID 1444 wrote to memory of 932	1444	cmd.exe	35
PID 1444 wrote to memory of 932	1444	cmd.exe	35
PID 1444 wrote to memory of 932	1444	cmd.exe	35
PID 1444 wrote to memory of 932	1444	cmd.exe	35

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
932	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\781235d1ca9b542ec2657113d3471a5cfd4cf7b0d0d531d04696ea27735d4e6e.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:860
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:864
- 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:1444
- - C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:932
- 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:1312
- 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:336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/860-225-0x0000000005590000-0x0000000005690000-memory.dmp

Filesize
1024KB

Download
memory/860-55-0x0000000071611000-0x0000000071613000-memory.dmp

Filesize
8KB

Download
memory/860-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/860-57-0x00000000725FD000-0x0000000072608000-memory.dmp

Filesize
44KB

Download
memory/860-58-0x0000000076391000-0x0000000076393000-memory.dmp

Filesize
8KB

Download
memory/860-227-0x0000000005590000-0x0000000005690000-memory.dmp

Filesize
1024KB

Download
memory/860-54-0x000000002F881000-0x000000002F884000-memory.dmp

Filesize
12KB

Download
memory/860-226-0x00000000725FD000-0x0000000072608000-memory.dmp

Filesize
44KB

Download
memory/864-60-0x000007FEFBE21000-0x000007FEFBE23000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads