f72f56e3b37660a45354150c63713dabc406ba057098c733fae08aaf1c4e9695

General

Target

Debt-Details-854237329-03052021.xls
Size

78KB
MD5

f0e172b4b6c31813387f584f95da632a
SHA1

38291885db835e98c518f4a4c86819f0e16a8808
SHA256

f72f56e3b37660a45354150c63713dabc406ba057098c733fae08aaf1c4e9695
SHA512

c475b4e057673a77f8b167213a8f44e3352e70dc89838ff47b65faff73b45863e5165322e37520e4aaf45e19912525408f2f1cce89d8d8f475d63e61a79b9f2d

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://warbeckcreative.net/jrsmbgsszm/44260.6942425926.dat

xlm40.dropper

http://gravestake.com/xaxyemzhgx/44260.6942425926.dat

xlm40.dropper

http://curvewilderness.com/fwsyrt/44260.6942425926.dat

xlm40.dropper

http://potnaalgrowesr.com/wlzcxyri/44260.6942425926.dat

xlm40.dropper

http://limitedcrystal.com/kfnxzrydpstx/44260.6942425926.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	1172	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	556	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1920	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1060	1152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1224	1152	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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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\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
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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE
1152 EXCEL.EXE

pid	process
1152	EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1172	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 556	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1920	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1060	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 1224	1152	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-854237329-03052021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1172

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:556

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1920

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1060

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Vijaser.lasjr4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1224

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/556-8-0x0000000000000000-mapping.dmp

Download
memory/1060-12-0x0000000000000000-mapping.dmp

Download
memory/1152-2-0x000000002F8C1000-0x000000002F8C4000-memory.dmp

Filesize
12KB

Download
memory/1152-3-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/1152-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1172-6-0x0000000000000000-mapping.dmp

Download
memory/1172-7-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1224-14-0x0000000000000000-mapping.dmp

Download
memory/1920-10-0x0000000000000000-mapping.dmp

Download
memory/1968-5-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads