aaa32ff3e41c61fe828f0850e702f5ed7ffd6177c4bf80ed15324525537f44cd

General

Target

plan-515372324.xlsb
Size

155KB
MD5

08e52afbefa423fb9f1ea0af88a4880e
SHA1

2d688dfee28f75553bc1d3633f891d2e70e0408b
SHA256

aaa32ff3e41c61fe828f0850e702f5ed7ffd6177c4bf80ed15324525537f44cd
SHA512

7a5400ec826ecaa0fa6a8beb9022bd9e918f11cf97e57d747477720889f7203af983620e2f7b543fb1ff5cc5a9eff13447d6353506c862dfe2ebd23b7a63dee8

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://khangland.pro/v8gEDeSB/sun.html

xlm40.dropper

https://jaipurbynite.com/stLdQs9R53/sun.htm

Signatures

Process spawned unexpected child process 2 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	592	1840	regsvr32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1284	1840	regsvr32.exe	24

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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1840	EXCEL.EXE

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE
1840	EXCEL.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1840 wrote to memory of 1696	1840	EXCEL.EXE	29
PID 1840 wrote to memory of 1696	1840	EXCEL.EXE	29
PID 1840 wrote to memory of 1696	1840	EXCEL.EXE	29
PID 1840 wrote to memory of 1696	1840	EXCEL.EXE	29
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 592	1840	EXCEL.EXE	32
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33
PID 1840 wrote to memory of 1284	1840	EXCEL.EXE	33

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\plan-515372324.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1840
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1696
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 ..\palpy1.dll
  2⤵
  - Process spawned unexpected child process
  PID:592
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 ..\palpy2.dll
  2⤵
  - Process spawned unexpected child process
  PID:1284

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/592-65-0x0000000074D91000-0x0000000074D93000-memory.dmp

Filesize
8KB

Download
memory/592-69-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/1284-68-0x00000000001E0000-0x00000000001E1000-memory.dmp

Filesize
4KB

Download
memory/1696-63-0x000007FEFB681000-0x000007FEFB683000-memory.dmp

Filesize
8KB

Download
memory/1840-59-0x000000002FFD1000-0x000000002FFD4000-memory.dmp

Filesize
12KB

Download
memory/1840-60-0x0000000070E81000-0x0000000070E83000-memory.dmp

Filesize
8KB

Download
memory/1840-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

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