945f14560f3894b2b77c7467a67a674476b195859e2ee3cd69eb9d8d1fdbf53a

General

Target

Overdue-Debt-146090903-03042021.xls
Size

76KB
MD5

06b861371ff3affe08a8ab4d518a1594
SHA1

aa26cd4a22d9aa424a5a84cec8e7405f12b0e35b
SHA256

866c111a58b4ada0264f9218a44df19108d31e3684cee9461cb6f073ebeb611c
SHA512

35187ce494bbe2ef381e4ffe7f3c3e9a1dd04a74535283f8ba6869f28a53283d9aa07ba1906d7cbf4eab8d40632360a1b879902f23d4fdc080222460cc4c1137

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://goscrawny.com/kfjzyxi/44260.7029741898.jpg

xlm40.dropper

http://cooperationoffense.com/vitaotme/44260.7029741898.jpg

xlm40.dropper

http://goaqaba.com/ccwidd/44260.7029741898.jpg

xlm40.dropper

http://virtuebeauty.org/srquxjdyy/44260.7029741898.jpg

xlm40.dropper

http://calfgiant.com/swsejhakai/44260.7029741898.jpg

Signatures

Process spawned unexpected child process 5 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.exerundll32.exerundll32.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	1456	1944	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1916	1944	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1532	1944	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	628	1944	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1152	1944	rundll32.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
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1944 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1944 EXCEL.EXE
1944 EXCEL.EXE
1944 EXCEL.EXE

pid	process
1944	EXCEL.EXE

pid	process
1944	EXCEL.EXE
1944	EXCEL.EXE
1944	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1456	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1916	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1532	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 628	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.exe
PID 1944 wrote to memory of 1152	1944	EXCEL.EXE	rundll32.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\Overdue-Debt-146090903-03042021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1944

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1456

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1916

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1532

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:628

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1152

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/628-12-0x0000000000000000-mapping.dmp

Download
memory/1152-14-0x0000000000000000-mapping.dmp

Download
memory/1456-6-0x0000000000000000-mapping.dmp

Download
memory/1456-7-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1532-10-0x0000000000000000-mapping.dmp

Download
memory/1744-5-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp

Filesize
2.5MB

Download
memory/1916-8-0x0000000000000000-mapping.dmp

Download
memory/1944-2-0x000000002FFE1000-0x000000002FFE4000-memory.dmp

Filesize
12KB

Download
memory/1944-3-0x0000000071821000-0x0000000071823000-memory.dmp

Filesize
8KB

Download
memory/1944-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads