9f651ae6ea538238748614a7f86fe2b0f76e881d6c38da581f284e4b6f79b0ca

Analysis

max time kernel
152s
max time network
122s
platform
windows7_x64
resource
win7-en-20211208
submitted
28-01-2022 13:34

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General

Target

01/2015.5.27/16.rtf
Size

645KB
MD5

4be96ff0f019a966dcf941121d9c4708
SHA1

b699d9c175ad5e05cfe32fb4bf560af9d2501df5
SHA256

28dc42f7c79bc17885a992211492b5c34cedf62d496dea3e179fcbc553c95a17
SHA512

2218b56c96e51f42a31250ae9cae8b1249b919966d30c615ed9488c63b1164820f86108b10c202362e86ccc5a1046f0ccf5fc89f948e65a827d7d606903af777

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\software\microsoft\windows\currentversion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\CommonFilesMgr = "C:\\ProgramData\\Common Files\\CommonFilesMgr.exe"	msiexec.exe

Disables taskbar notifications via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

~WRX4014.tmp

pid process

1544 ~WRX4014.tmp
Loads dropped DLL 1 IoCs

Processes:

~WRX4014.tmp

pid process

992 ~WRX4014.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

~WRX4014.tmp

description pid process target process

PID 1544 set thread context of 992 1544 ~WRX4014.tmp ~WRX4014.tmp

pid	process
1544	~WRX4014.tmp

pid	process
992	~WRX4014.tmp

description	pid	process	target process
PID 1544 set thread context of 992	1544	~WRX4014.tmp	~WRX4014.tmp

Modifies Internet Explorer Phishing Filter 1 TTPs 6 IoCs

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\PhishingFilter	msiexec.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	msiexec.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	msiexec.exe
Key created	\REGISTRY\MACHINE\Software\Microsoft\Internet Explorer\PhishingFilter	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	msiexec.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV9 = "0"	msiexec.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-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1540 WINWORD.EXE

pid	process
1540	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

msiexec.exe

pid	process
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe
920	msiexec.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WINWORD.EXE

pid process

1540 WINWORD.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

WINWORD.EXE~WRX4014.tmp

pid process

1540 WINWORD.EXE
1540 WINWORD.EXE
1544 ~WRX4014.tmp

pid	process
1540	WINWORD.EXE

pid	process
1540	WINWORD.EXE
1540	WINWORD.EXE
1544	~WRX4014.tmp

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

WINWORD.EXE~WRX4014.tmp~WRX4014.tmp

description	pid	process	target process
PID 1540 wrote to memory of 300	1540	WINWORD.EXE	splwow64.exe
PID 1540 wrote to memory of 300	1540	WINWORD.EXE	splwow64.exe
PID 1540 wrote to memory of 300	1540	WINWORD.EXE	splwow64.exe
PID 1540 wrote to memory of 300	1540	WINWORD.EXE	splwow64.exe
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 1544 wrote to memory of 992	1544	~WRX4014.tmp	~WRX4014.tmp
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe
PID 992 wrote to memory of 920	992	~WRX4014.tmp	msiexec.exe

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\01\2015.5.27\16.rtf"
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:300

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp
"C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1544

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp
"C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:992

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds policy Run key to start application
- Modifies Internet Explorer Phishing Filter
- Suspicious behavior: EnumeratesProcesses
PID:920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp
MD5
b1247bab4bc611e49ae0d3c2b9e8a86b

SHA1
04476bf6c86e10e651befb2c4733e1ea69e10be0

SHA256
1b975ac3b07c179eaa883a217afcb16771de3d5ba4e1c52b82ad60fdb97410a6

SHA512
99a81a9d59d6f30a71737abe7b06d88a6a63a314e7b0be0d462532e5ef65555cc9f5370ec67b8d499f116e4db0aaee282925315c949d85c4068889946e0cd5b2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp
MD5
b1247bab4bc611e49ae0d3c2b9e8a86b

SHA1
04476bf6c86e10e651befb2c4733e1ea69e10be0

SHA256
1b975ac3b07c179eaa883a217afcb16771de3d5ba4e1c52b82ad60fdb97410a6

SHA512
99a81a9d59d6f30a71737abe7b06d88a6a63a314e7b0be0d462532e5ef65555cc9f5370ec67b8d499f116e4db0aaee282925315c949d85c4068889946e0cd5b2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.Word\~WRX4014.tmp
MD5
b1247bab4bc611e49ae0d3c2b9e8a86b

SHA1
04476bf6c86e10e651befb2c4733e1ea69e10be0

SHA256
1b975ac3b07c179eaa883a217afcb16771de3d5ba4e1c52b82ad60fdb97410a6

SHA512
99a81a9d59d6f30a71737abe7b06d88a6a63a314e7b0be0d462532e5ef65555cc9f5370ec67b8d499f116e4db0aaee282925315c949d85c4068889946e0cd5b2

Download Submit
memory/300-59-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

Filesize
8KB

Download
memory/920-72-0x0000000000120000-0x0000000000137000-memory.dmp

Filesize
92KB

Download
memory/992-71-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/992-68-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download
memory/1540-58-0x0000000075D61000-0x0000000075D63000-memory.dmp

Filesize
8KB

Download
memory/1540-61-0x00000000070D0000-0x000000000722C000-memory.dmp

Filesize
1.4MB

Download
memory/1540-60-0x0000000006450000-0x0000000006460000-memory.dmp

Filesize
64KB

Download
memory/1540-55-0x00000000720C1000-0x00000000720C4000-memory.dmp

Filesize
12KB

Download
memory/1540-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1540-56-0x000000006FB41000-0x000000006FB43000-memory.dmp

Filesize
8KB

Download
memory/1544-65-0x00000000003C0000-0x00000000003C2000-memory.dmp

Filesize
8KB

Download