c3a59ff2bf7e39ce991568f3a1f159dcd10bc1f10312214397b73d2978f3ff9b

General

Target

Patent_656419797_as-of-27thJune2020.doc
Size

1006KB
MD5

45df50ea19045aa1d48ee962246c8c56
SHA1

86d00261ba88265bdd6b27ca76c44e2769c5088e
SHA256

cf577313173f345525aff5b7efe4c709507da92a9c9211559f6ff6af00db44b2
SHA512

262d148ed613ad6659c9f186537a50c8228182c58616de8b03687389ade4541e2cb829eee99a86b89c69af7e4d854e38813a030b528cb83f1fdefca96beb9bf4

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:

cmd.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	1876	1808	cmd.exe	WINWORD.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	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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1808 WINWORD.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1808 WINWORD.EXE
1808 WINWORD.EXE

pid	process
1808	WINWORD.EXE

pid	process
1808	WINWORD.EXE
1808	WINWORD.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

WINWORD.EXEcmd.exe

description	pid	process	target process
PID 1808 wrote to memory of 1356	1808	WINWORD.EXE	splwow64.exe
PID 1808 wrote to memory of 1356	1808	WINWORD.EXE	splwow64.exe
PID 1808 wrote to memory of 1356	1808	WINWORD.EXE	splwow64.exe
PID 1808 wrote to memory of 1356	1808	WINWORD.EXE	splwow64.exe
PID 1808 wrote to memory of 1876	1808	WINWORD.EXE	cmd.exe
PID 1808 wrote to memory of 1876	1808	WINWORD.EXE	cmd.exe
PID 1808 wrote to memory of 1876	1808	WINWORD.EXE	cmd.exe
PID 1808 wrote to memory of 1876	1808	WINWORD.EXE	cmd.exe
PID 1876 wrote to memory of 1688	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1688	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1688	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1688	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1624	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1624	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1624	1876	cmd.exe	certutil.exe
PID 1876 wrote to memory of 1624	1876	cmd.exe	certutil.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\Patent_656419797_as-of-27thJune2020.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1356

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Documents and Settings\Admin\Exerwa\decode.bat""
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1876

C:\Windows\SysWOW64\certutil.exe
certutil -f -decode exec.enc exec.exe
3⤵
PID:1688

C:\Windows\SysWOW64\certutil.exe
certutil -f -decode script.enc script.ps1
3⤵
PID:1624

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Documents and Settings\Admin\Exerwa\decode.bat
MD5
b23aef1dc2efba86507c2a2362cac823

SHA1
e3e22cf384dc9c61589802580ee4042f544053de

SHA256
9cc0e973845f934fdcf821389dc436a77b77808800763fdcafd546485e2e4b5d

SHA512
2e1cda89597e9e63355df3fe14d37b947b5177dd9df0eca1d1ba0afe0332931d144ca6536117e60f32a77a36ab60fb40a6f155c49bc0b004c1f287a5393289ed

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C:\Users\Admin\Exerwa\exec.enc
MD5
4afd8a3e4bf79997089aa0e933a0ccda

SHA1
a3c6ea66eb49ec907bd8ed0fabe6694df3649922

SHA256
623ac62cbcddfbf29c349bcbadee6e4dfaf4fb5fffa3a656e8c9cb3e0d8465e0

SHA512
e7a4391fb931a4b5c35b6a446a82d77d7e60b241b911033198ac9b9373cd468b8ae673fc74a850b91b5bf1f0c1b1c07e65f6a3049e52a5ad1fd13b518c2bda00

Download Submit
C:\Users\Admin\Exerwa\script.enc
MD5
04b01b253c4f9bff1039a31190155309

SHA1
2f4d2b7714d6332cb6634d9f7724c70bee3a74cd

SHA256
1e7370f3c2a51a7c64ecad889f0cf09f21403e860a4af953ce8589761804ce6a

SHA512
d33f9d9dc8f1da1e27ca6c094c7292c52afaa62536c6c73b9f558c20298e27f1fad029368fe93bc42ae1da6f8eeb953d46f71050131703f2e97dfb0e5691b0e3

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memory/1356-0-0x0000000000000000-mapping.dmp

Download
memory/1624-6-0x0000000000000000-mapping.dmp

Download
memory/1688-4-0x0000000000000000-mapping.dmp

Download
memory/1808-1-0x00000000006B1000-0x00000000006D2000-memory.dmp

Filesize
132KB

Download
memory/1876-2-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads