1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26

General

Target

Bill_PYWTF0.xlsb
Size

264KB
MD5

29be144375ee1609c2c1fd63ae2ff514
SHA1

f37a8d5da9424bd916ed1c572b15173b5f430dd2
SHA256

1296ca015baa3dfae62d8cd6f6c1c1513fb919201a6c11f3df1474700d57fb26
SHA512

7873fffbc179dc3e8b415b72c2c3b736c7f4164e1a8a33c6d38cae5902466059f2fe50adf9ff0f2bba8411d373ceca02a950df9fd263624ab03014cf9879d752

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
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	EXCEL.EXE

Modifies data under HKEY_USERS 40 IoCs

Processes:

sihclient.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	sihclient.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	sihclient.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4868 EXCEL.EXE

pid	process
4868	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

svchost.exe

description	pid	process
Token: SeSystemtimePrivilege	3844	svchost.exe
Token: SeSystemtimePrivilege	3844	svchost.exe
Token: SeIncBasePriorityPrivilege	3844	svchost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

EXCEL.EXE

pid process

4868 EXCEL.EXE
4868 EXCEL.EXE
4868 EXCEL.EXE
4868 EXCEL.EXE

pid	process
4868	EXCEL.EXE
4868	EXCEL.EXE
4868	EXCEL.EXE
4868	EXCEL.EXE

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Bill_PYWTF0.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:4868

C:\Windows\System32\Upfc.exe
C:\Windows\System32\Upfc.exe /launchtype periodic /cv 5HeQu1KvjES1HkKiGcKODQ.0
1⤵
PID:3760

C:\Windows\System32\sihclient.exe
C:\Windows\System32\sihclient.exe /cv dn8LwwbFRkCXo9mq/8woaw.0.2
1⤵
- Modifies data under HKEY_USERS
PID:4600

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService -s W32Time
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3844

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
1⤵
PID:5020

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p -s SSDPSRV
1⤵
PID:436

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 0572ccaef2b24c13cc022f6927cba2fc 5HeQu1KvjES1HkKiGcKODQ.0.1.0.3.0
1⤵
PID:3136

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
PID:920

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
PID:2000

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/920-164-0x000001D8718A0000-0x000001D8718A4000-memory.dmp

Filesize
16KB

Download
memory/2116-186-0x0000000000000000-mapping.dmp

Download
memory/4868-166-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-185-0x0000027225030000-0x0000027225036000-memory.dmp

Filesize
24KB

Download
memory/4868-150-0x00007FFFB9D70000-0x00007FFFB9D80000-memory.dmp

Filesize
64KB

Download
memory/4868-167-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-152-0x00007FFFB9D70000-0x00007FFFB9D80000-memory.dmp

Filesize
64KB

Download
memory/4868-153-0x00007FFFB9D70000-0x00007FFFB9D80000-memory.dmp

Filesize
64KB

Download
memory/4868-154-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-155-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-156-0x00007FFFD4720000-0x00007FFFD580E000-memory.dmp

Filesize
16.9MB

Download
memory/4868-157-0x00007FFFD26D0000-0x00007FFFD45C5000-memory.dmp

Filesize
31.0MB

Download
memory/4868-158-0x00007FFFB7600000-0x00007FFFB7610000-memory.dmp

Filesize
64KB

Download
memory/4868-159-0x00007FFFB7600000-0x00007FFFB7610000-memory.dmp

Filesize
64KB

Download
memory/4868-162-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-163-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-169-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-165-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-184-0x0000027225030000-0x0000027225036000-memory.dmp

Filesize
24KB

Download
memory/4868-168-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-151-0x00007FFFB9D70000-0x00007FFFB9D80000-memory.dmp

Filesize
64KB

Download
memory/4868-149-0x00007FFFB9D70000-0x00007FFFB9D80000-memory.dmp

Filesize
64KB

Download
memory/4868-171-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-170-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-172-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-173-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-175-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-174-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-176-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-177-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-178-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-179-0x0000027225030000-0x0000027225032000-memory.dmp

Filesize
8KB

Download
memory/4868-180-0x0000027225030000-0x0000027225034000-memory.dmp

Filesize
16KB

Download
memory/4868-181-0x0000027225030000-0x0000027225036000-memory.dmp

Filesize
24KB

Download
memory/4868-182-0x0000027225030000-0x0000027225036000-memory.dmp

Filesize
24KB

Download
memory/4868-183-0x0000027225030000-0x0000027225036000-memory.dmp

Filesize
24KB

Download
memory/5020-146-0x00000203F9D70000-0x00000203F9D80000-memory.dmp

Filesize
64KB

Download
memory/5020-148-0x00000203FA9D0000-0x00000203FA9D4000-memory.dmp

Filesize
16KB

Download
memory/5020-147-0x00000203FA820000-0x00000203FA830000-memory.dmp

Filesize
64KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads