dde5e84687fd26f1bddd95b2ff06fbdea6ab4c9fd61eecc4fd7dba0673040c3f

General

Target
Document151281656103242021Copy.xlsm
Size 170KB
Sample210325-acf7deaazn
SHA256 dde5e84687fd26f1bddd95b2ff06fbdea6ab4c9fd61eecc4fd7dba0673040c3f
MD5 b703858b1614580f534c77e254fa1770
SHA1 b00f39692a45c4302798b3ad6a991a0aed393cb4
SHA512 664fbbb44a9810b7b3eb07c5872cfd3d07425eeba0b21978f4cc5dd6116de3a90b991db30b0bc2aaf03346cba09204ba6653b499c899c5857d2b58ab188b9ff3
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://188.127.224.149/44280.4380321759.dat
xlm40.dropper
http://45.150.67.23/44280.4380321759.dat
xlm40.dropper
http://195.123.213.154/44280.4380321759.dat

Signatures

Process spawned unexpected child process 3 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	780	596	Rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	552	596	Rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	812	596	Rundll32.exe	24

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

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 (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
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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
596	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
596	EXCEL.EXE
596	EXCEL.EXE
596	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 780	596	EXCEL.EXE	31
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 552	596	EXCEL.EXE	32
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33
PID 596 wrote to memory of 812	596	EXCEL.EXE	33

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\Document151281656103242021Copy.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:596
- C:\Windows\SysWOW64\Rundll32.exe
  Rundll32 ..\Fol.doka,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:780
- C:\Windows\SysWOW64\Rundll32.exe
  Rundll32 ..\Fol.doka1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:552
- C:\Windows\SysWOW64\Rundll32.exe
  Rundll32 ..\Fol.doka2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:812

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/596-2-0x000000002FDA1000-0x000000002FDA4000-memory.dmp

Download

memory/596-3-0x0000000071BA1000-0x0000000071BA3000-memory.dmp

Download

memory/596-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/780-7-0x00000000767C1000-0x00000000767C3000-memory.dmp

Download

memory/1976-5-0x000007FEF7E50000-0x000007FEF80CA000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads