d54fa3d2b17706fe6e4c1159c04ff2bbc4f2403de5855f73a038ed8335e7e3f2

General

Target

sample.xls
Size

276KB
MD5

5cd0bfc13e54454404bdea0a16d5fbba
SHA1

c191aeed68de9ebcbd8cf14aa4d6465e305e6603
SHA256

d54fa3d2b17706fe6e4c1159c04ff2bbc4f2403de5855f73a038ed8335e7e3f2
SHA512

cee9509a75a51f740ad087b4af2116b2644999aabbbea2281efc90ec298786f66ba4a211c3a83b6e0a7a6d6c3fcfa51e146d3fc19683c5f302fc52c132fe014d

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://lackenbauer.ru/bd/hhvqjrec/44266.5618491898.dat

xlm40.dropper

http://www.peacezoneacademy.com/dxsbonlv/44266.5618491898.dat

xlm40.dropper

http://jopo.com/gmaaxbro/44266.5618491898.dat

xlm40.dropper

http://www.thegivingwall.co.uk/jfgolx/44266.5618491898.dat

xlm40.dropper

http://baxtercode.com/qkhpnucmzts/44266.5618491898.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	1124	1616	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1284	1616	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1536	1616	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	292	1616	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	912	1616	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\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
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
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

1616 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1616 EXCEL.EXE
1616 EXCEL.EXE
1616 EXCEL.EXE

pid	process
1616	EXCEL.EXE

pid	process
1616	EXCEL.EXE
1616	EXCEL.EXE
1616	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1124	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1284	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 1536	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 292	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	EXCEL.EXE	rundll32.exe
PID 1616 wrote to memory of 912	1616	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\sample.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Runtime.brok,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1124
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Runtime.brok1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Runtime.brok2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1536
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Runtime.brok3,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:292
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Runtime.brok4,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:912

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

C:\Users\Admin\Runtime.brok1

MD5
153665460fe2578e8dc4e36ef7077d80

SHA1
40a90b6f98c358bdbdd6e5842c186d919cdde7e3

SHA256
3ad4b3ff863a1ff41ea1e6ebb34f374a8d54804ec27b5531d05e579374bd602b

SHA512
31abced5777e4c5dd3f155fbda068ab786a57e0d24cb535d41379c471011a6ac757f2ad4802c52249b3280065c4ce31e3a7f932637d8ee37adbccdab3a2bf2f8

Download Submit
memory/292-13-0x0000000000000000-mapping.dmp

Download
memory/912-15-0x0000000000000000-mapping.dmp

Download
memory/1112-5-0x000007FEF7BD0000-0x000007FEF7E4A000-memory.dmp

Filesize
2.5MB

Download
memory/1124-6-0x0000000000000000-mapping.dmp

Download
memory/1124-7-0x00000000765A1000-0x00000000765A3000-memory.dmp

Filesize
8KB

Download
memory/1284-8-0x0000000000000000-mapping.dmp

Download
memory/1536-11-0x0000000000000000-mapping.dmp

Download
memory/1616-2-0x000000002FAC1000-0x000000002FAC4000-memory.dmp

Filesize
12KB

Download
memory/1616-3-0x0000000071A81000-0x0000000071A83000-memory.dmp

Filesize
8KB

Download
memory/1616-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads