ce779c38729b3e942e1812a1abedda88737ba35aa596e284e4eca59fb7c70190

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
21-09-2022 07:23

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General

Target

decrypted.xlsx
Size

167KB
MD5

806b91518351d8180818609ec402c0c9
SHA1

49438e4aa5b49f52f0122eb9566406ac9e332ae4
SHA256

a7d02fbc343281d43f06a7cf646ff45428b0c6801150c9b37be6f842514cf1d7
SHA512

9c012a9ad8d83ea9e62c71387e01955e4fb5cf13d52ee320eec416b91ed99faa215e31372bf4530c66e317381b713bff312008cfe36bd6be789c4f9d469911dd
SSDEEP

3072:YM8TgsQh12ZOhivfWh05bQReF8a5YQZFlBApeknaJSGUqiszMKp41Jpyawj:YM8TWlh0ceFXRBBknad/+3ghj

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 6 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 6 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4756	EXCEL.EXE
4088	WINWORD.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeAuditPrivilege	4088	WINWORD.EXE

Suspicious use of SetWindowsHookEx 16 IoCs

pid	Process
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4088	WINWORD.EXE
4088	WINWORD.EXE
4756	EXCEL.EXE
4756	EXCEL.EXE
4088	WINWORD.EXE
4756	EXCEL.EXE
4088	WINWORD.EXE

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 1300	4088	WINWORD.EXE	86
PID 4088 wrote to memory of 1300	4088	WINWORD.EXE	86

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\decrypted.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4756

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4088
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1300

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1476

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\WebServiceCache\AllUsers\officeclient.microsoft.com\BFCA2AAD-A7A0-432E-ACEE-41B1E3E51AD3

Filesize
145KB

MD5
53225805ffa6e07454e415f68e4a350a

SHA1
7655c15381fc754d9443bb84e887ea9f4f8ad3d6

SHA256
89492b5fd04103c7772ad26a0c8e8d9dcfea39fd8d11d7dbfc496a287a5bfc44

SHA512
979486591490d2a8b82b2d39540ddcf8d6a5e59cd44422ad910420d14a4fb42b9406d3a3fb068fbb202d3689c915c59515c2ede0006d6b6563a44e302971e156

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DUHIRKGY\.............44[1].doc

Filesize
19KB

MD5
0803cf8e590e7bffd491dac49bf839b7

SHA1
f22d4b30d788de97b201206737db8fe90c8dcbf4

SHA256
3161ee5ba8ccdfc7b74a6b0cd4bb267fc01cb7594ff532b1db7866201dc0371c

SHA512
bcc6781d779f5cf6bf9ff5e5d3f583b1e474a52de228a92cf12ccc52c8ddfe0226091d9dd14ed0abf5913ec4d18f08391a87e57d8bf0f9ca60dbbacf6a491005

Download Submit
memory/1300-148-0x0000000000000000-mapping.dmp

Download
memory/4756-132-0x00007FFB70CF0000-0x00007FFB70D00000-memory.dmp

Filesize
64KB

Download
memory/4756-133-0x00007FFB70CF0000-0x00007FFB70D00000-memory.dmp

Filesize
64KB

Download
memory/4756-134-0x00007FFB70CF0000-0x00007FFB70D00000-memory.dmp

Filesize
64KB

Download
memory/4756-135-0x00007FFB70CF0000-0x00007FFB70D00000-memory.dmp

Filesize
64KB

Download
memory/4756-136-0x00007FFB70CF0000-0x00007FFB70D00000-memory.dmp

Filesize
64KB

Download
memory/4756-137-0x00007FFB6E6B0000-0x00007FFB6E6C0000-memory.dmp

Filesize
64KB

Download
memory/4756-138-0x00007FFB6E6B0000-0x00007FFB6E6C0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads