0b5aef42ff5ae678d7ab65b0c2b7824aed3c5215d2755f326a0b5c4cba32f52a

General

Target

Cancellation-1833116253-03112021.xls
Size

277KB
MD5

a1f1f52796d8f655dd0603fb8368ecc0
SHA1

af2b833eede2aae9f9dc5862c34ea19b826cc081
SHA256

9826463d649ddac393a09764050fc6ebf824d06dc05b8c105fdced3eac4cbc02
SHA512

a1e7ed059a4e6686e7bce6542eea97481a25dea93133e982b53c6441bb05eeb3c9bb15ba080d81182b330586135cef85e491e5e948769d945275341ea630067b

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://195.123.220.67/44267.852247338.dat

xlm40.dropper

http://45.150.67.127/44267.852247338.dat

xlm40.dropper

http://181.215.47.82/44267.852247338.dat

xlm40.dropper

http://reynare.com/sbazaa/44267.852247338.dat

xlm40.dropper

http://hosting152231.a2e16.netcup.net/zhrzoxxo/44267.852247338.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	664	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1476	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1072	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	964	1044	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1504	1044	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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
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	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\MenuExt\Se&nd to OneNote	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\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 (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

1044 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1044 EXCEL.EXE
1044 EXCEL.EXE
1044 EXCEL.EXE

pid	process
1044	EXCEL.EXE

pid	process
1044	EXCEL.EXE
1044	EXCEL.EXE
1044	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 664	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1476	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1072	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 964	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	EXCEL.EXE	rundll32.exe
PID 1044 wrote to memory of 1504	1044	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\Cancellation-1833116253-03112021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:664

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1476

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1072

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:964

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtime.brok4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1504

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

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Downloads

memory/664-6-0x0000000000000000-mapping.dmp

Download
memory/664-7-0x00000000760A1000-0x00000000760A3000-memory.dmp

Filesize
8KB

Download
memory/964-12-0x0000000000000000-mapping.dmp

Download
memory/1044-2-0x000000002FFE1000-0x000000002FFE4000-memory.dmp

Filesize
12KB

Download
memory/1044-3-0x0000000071051000-0x0000000071053000-memory.dmp

Filesize
8KB

Download
memory/1044-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1072-10-0x0000000000000000-mapping.dmp

Download
memory/1476-8-0x0000000000000000-mapping.dmp

Download
memory/1504-14-0x0000000000000000-mapping.dmp

Download
memory/1508-5-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads