90571ef6228da3183da7fbc6bf5eff12933c7d2ec1cb460809b687c5e0996d21

General

Target

Debt-Details-122785705-03052021.xls
Size

78KB
MD5

c33f14f5c08ce99c38ad91690d93a11b
SHA1

bd0e5b60b542ad2031d05ec1113feb42b369c5a2
SHA256

0d3109e046c61f2822e061343c360e0328feb6805c52b2e32146a122de253177
SHA512

2333e54e2d9dbb6e7a300a5c4e91199d5fc344014f43c494ddd2c81637351c85a5a3a1382e99fd97aedd8ad367d7011eb0b0f0a92e478e048a600554e8ef2a69

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://kosherbansko.com/vozrhzftc/44261.3029569444.dat

xlm40.dropper

http://beautyhair.by/rkqhopvrb/44261.3029569444.dat

xlm40.dropper

http://trysaileggplants.com/xbbomazcknz/44261.3029569444.dat

xlm40.dropper

http://giftcard16.com/pghxph/44261.3029569444.dat

xlm40.dropper

http://www.ausfencing.org/jqikucbefrth/44261.3029569444.dat

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	1100	1656	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	432	1656	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1512	1656	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1284	1656	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1924	1656	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 (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1656 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1656 EXCEL.EXE
1656 EXCEL.EXE
1656 EXCEL.EXE

pid	process
1656	EXCEL.EXE

pid	process
1656	EXCEL.EXE
1656	EXCEL.EXE
1656	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1100	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 432	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1512	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1284	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	EXCEL.EXE	rundll32.exe
PID 1656 wrote to memory of 1924	1656	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\Debt-Details-122785705-03052021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1656

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1100

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:432

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1512

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1284

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1924

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

Replay Monitor

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Downloads

memory/432-8-0x0000000000000000-mapping.dmp

Download
memory/1100-6-0x0000000000000000-mapping.dmp

Download
memory/1100-7-0x00000000765A1000-0x00000000765A3000-memory.dmp

Filesize
8KB

Download
memory/1284-12-0x0000000000000000-mapping.dmp

Download
memory/1368-5-0x000007FEF7BD0000-0x000007FEF7E4A000-memory.dmp

Filesize
2.5MB

Download
memory/1512-10-0x0000000000000000-mapping.dmp

Download
memory/1656-2-0x000000002FBC1000-0x000000002FBC4000-memory.dmp

Filesize
12KB

Download
memory/1656-3-0x0000000071A81000-0x0000000071A83000-memory.dmp

Filesize
8KB

Download
memory/1656-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1924-14-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads