c0a3994bb5140514f73ecfb49ba1f8a74c2cf3c31dde10c79fa5b8f615ce16b4

General

Target

Compensation-1027110219.xls
Size

233KB
MD5

76c5b3c16a42fd876d3c8648063ebefd
SHA1

17eb233138408ec24ee1d300c7fdec089d534766
SHA256

c0a3994bb5140514f73ecfb49ba1f8a74c2cf3c31dde10c79fa5b8f615ce16b4
SHA512

e50ac5cff53c6d014b73db0a1de64fd3904fb9b55b65c0278d284fda0b9fa4d6b0a5038f6cfc3618b13103d64dbbcb81ca40b5a27621a00090f6d53a03f0eedc

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://safalerp.com/J1wlINw7HtJ/siera.xml

xlm40.dropper

https://godschildrenaf.org/qxwbRMzrqoWK/siera.xml

xlm40.dropper

https://callgirlsandescortkenya.site/hllzvTuU/siera.xml

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

regsvr32.exeregsvr32.exeregsvr32.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	1708	748	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1776	748	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1872	748	regsvr32.exe	EXCEL.EXE

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

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
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
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\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\E&xport to Microsoft Excel	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 (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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

748 EXCEL.EXE
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

EXCEL.EXE

pid process

748 EXCEL.EXE
748 EXCEL.EXE
748 EXCEL.EXE
748 EXCEL.EXE
748 EXCEL.EXE
748 EXCEL.EXE

pid	process
748	EXCEL.EXE

pid	process
748	EXCEL.EXE
748	EXCEL.EXE
748	EXCEL.EXE
748	EXCEL.EXE
748	EXCEL.EXE
748	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1708	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1776	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.exe
PID 748 wrote to memory of 1872	748	EXCEL.EXE	regsvr32.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\Compensation-1027110219.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:748

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test.test
2⤵
- Process spawned unexpected child process
PID:1708

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test1.test
2⤵
- Process spawned unexpected child process
PID:1776

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" C:\Datop\test2.test
2⤵
- Process spawned unexpected child process
PID:1872

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

memory/748-60-0x000000002F4C1000-0x000000002F4C4000-memory.dmp

Filesize
12KB

Download
memory/748-61-0x0000000070E11000-0x0000000070E13000-memory.dmp

Filesize
8KB

Download
memory/748-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1708-63-0x0000000000000000-mapping.dmp

Download
memory/1708-67-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1708-70-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1776-64-0x0000000000000000-mapping.dmp

Download
memory/1776-69-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1872-65-0x0000000000000000-mapping.dmp

Download
memory/1872-71-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads