51fd7a4975410870bf3d63839671d83305d79f59f8f3a8cffa78498fbe8d7aa3

Analysis

max time kernel
53s
max time network
50s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
14-03-2023 11:42

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General

Target

lK_1403.doc
Size

510.4MB
MD5

e969383cb2d77f35586d8595055e0a65
SHA1

4dcc25e8cdca3bfaab04e9892bc5c800a6fa4607
SHA256

ba9a18827892891e86f0fe58e1e655198f896fe8eeecb9a60e3fa008bd6fa05e
SHA512

dcd070cbc55d0fdf6a62f8ecac4833c3651c4b396cd2971a335a96ba5220a3f18b797944588e30ddaca9744398bcc1a8979b7a534f96d389ae418d163d1b264d
SSDEEP

6144:5yk1RgZZXbN63GW1Z7krKSUzMNYJJdKkOl950uH54Lg4Ne9C:5/MXJ6WW1Z7ktUgNYJJdKkOHC4D409

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	1624	1700	regsvr32.exe	WINWORD.EXE

Office loads VBA resources, possible macro or embedded object present

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\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-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE

Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.

Processes:

description flow ioc

HTTP User-Agent header 12 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1700 WINWORD.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

WINWORD.EXE

pid process

1700 WINWORD.EXE
1700 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1700 WINWORD.EXE
1700 WINWORD.EXE

description	flow	ioc
HTTP User-Agent header	12	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

pid	process
1700	WINWORD.EXE

pid	process
1700	WINWORD.EXE
1700	WINWORD.EXE

pid	process
1700	WINWORD.EXE
1700	WINWORD.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

WINWORD.EXE

description	pid	process	target process
PID 1700 wrote to memory of 1556	1700	WINWORD.EXE	splwow64.exe
PID 1700 wrote to memory of 1556	1700	WINWORD.EXE	splwow64.exe
PID 1700 wrote to memory of 1556	1700	WINWORD.EXE	splwow64.exe
PID 1700 wrote to memory of 1556	1700	WINWORD.EXE	splwow64.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\lK_1403.doc"
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1700

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1556

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\124341.tmp"
2⤵
- Process spawned unexpected child process
PID:1624

C:\Windows\system32\regsvr32.exe
/s "C:\Users\Admin\AppData\Local\Temp\124341.tmp"
3⤵
PID:540

C:\Windows\system32\regsvr32.exe
C:\Windows\system32\regsvr32.exe "C:\Windows\system32\LvmmoizbgHafhJR\vJfwxPDZHMRALmB.dll"
4⤵
PID:1600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\124341.tmp
Filesize
527.5MB

MD5
6ea930620e66f8cb84e1774d0a6c0b2d

SHA1
748404bba874a143cdce8af9422fda733993dc89

SHA256
bd55dcc2e45d2274f6575f862f7fb7f52a898e44b4910cdbb4bd71a44620b44a

SHA512
6c62986b29171f4d5b1616e103c711d51120677e796a90eed83a5823835f63bf7aa4d4260f92597856b39d8afd39a8ff7be941ca9b1e2750529d4c1f405a2c18

Download Submit
C:\Users\Admin\AppData\Local\Temp\124409.zip
Filesize
834KB

MD5
cf86a720a67639874a9b3b8de8e144a7

SHA1
faf52019395bd4c8f30c39564712b0fce0ada472

SHA256
2c7dfb631c1482ee65c1b2af2eba544f7efe1724fe8e39c9bb2ec86bbd77fdd2

SHA512
15ca8279ab68fa5f2ee175641cd5570f8fe6b4195d62a3420cd02c157614af4d395e9a1e2ea57ce9229f09fcacf1a99ccc19d44ae06627b0302926643c5c0008

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm
Filesize
20KB

MD5
fa729947e2df7172e995144c465927bc

SHA1
d3b035a5886e7cb9176590a538fd780fb49d71ea

SHA256
c47fddbb6abdec44a9f6ea594858325b0b88e5f48056df8d6bd910f9276942d4

SHA512
8e890dc5d9b5681220c8e1b5c73d78c86bb8c574617942c69958fc2562a364bdc3d12e1bd899fc7ee482dcc01653b16bec0ae56222eb944820b299e866b20e23

Download Submit
\Users\Admin\AppData\Local\Temp\124341.tmp
Filesize
527.5MB

MD5
6ea930620e66f8cb84e1774d0a6c0b2d

SHA1
748404bba874a143cdce8af9422fda733993dc89

SHA256
bd55dcc2e45d2274f6575f862f7fb7f52a898e44b4910cdbb4bd71a44620b44a

SHA512
6c62986b29171f4d5b1616e103c711d51120677e796a90eed83a5823835f63bf7aa4d4260f92597856b39d8afd39a8ff7be941ca9b1e2750529d4c1f405a2c18

Download Submit
\Users\Admin\AppData\Local\Temp\124341.tmp
Filesize
449.0MB

MD5
b3c5884a517f8f24ab817bd58a1b1ac5

SHA1
05712dd71a6ab89b21e7048669e181ff8619318d

SHA256
a123e30bb13d264aa750aeab7b0e85def1092901d3bcefe9a7faa0d234806f47

SHA512
cab14134e25dd457d18b5c7a92e1866db5755230e7a199919bc11d3413852d7a85349bd72780ed909f262ec558a9c7df4d50ecc432e5f4c702d57472ce5b956d

Download Submit
memory/540-1739-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/1600-1745-0x0000000001DD0000-0x0000000001DD1000-memory.dmp

Filesize
4KB

Download
memory/1700-86-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-1744-0x0000000006900000-0x0000000006901000-memory.dmp

Filesize
4KB

Download
memory/1700-61-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-62-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-63-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-64-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-65-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-66-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-67-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-68-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-69-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-70-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-71-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-91-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-73-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-74-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-75-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-76-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-77-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-78-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-79-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-80-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-81-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-82-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-83-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-84-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-85-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-59-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-87-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-88-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-89-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-60-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-72-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-92-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-93-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-96-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-94-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-95-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-97-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-98-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-100-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-101-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-103-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-104-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-102-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-99-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-105-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-106-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-107-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-108-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-109-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-110-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-111-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-112-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-113-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-114-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-115-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-116-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-117-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-1486-0x0000000006900000-0x0000000006901000-memory.dmp

Filesize
4KB

Download
memory/1700-90-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-58-0x0000000000280000-0x0000000000380000-memory.dmp

Filesize
1024KB

Download
memory/1700-54-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download