xloader | 4de35ea5d1f54708e27e4806246a6c9d9b2217cfef24c7b2321a8f6026c5d98c

General

Target

371c76d36256463a54d34e12d6741720.exe
Size

251KB
MD5

371c76d36256463a54d34e12d6741720
SHA1

41843093a5b3a7f5712abd30937004b203851252
SHA256

4de35ea5d1f54708e27e4806246a6c9d9b2217cfef24c7b2321a8f6026c5d98c
SHA512

f2e87fb4628a8b413ced0d92bcedafc4667e8655ac2c13fa15b7f806ddd19daec919003da80f4157f83e5a24b24a4ccac98c2dfd351227b6a549443c8e7c5759

Score

10^/10

xloader m5cw loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

m5cw

C2

http://www.art-for-a-cause.com/m5cw/

Decoy

stolpfabriken.com

aromaessentialco.com

rmcclaincpa.com

wuruixin.com

sidhyanticlasses.com

horilka.store

organic-outlaws.com

customsoftwarelogistics.com

cheryltesting.com

thecompacthomegym.com

the22yards.club

quickloanprovidersservices.com

grippyent.com

guard-usa.com

agircredit.com

classificationmetallurgie.com

quizzesandcode.com

catdanos.com

8676789.rest

gotbestshavlngplansforyou.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral4/memory/1692-151-0x0000000000400000-0x0000000000429000-memory.dmp	xloader

Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112
Loads dropped DLL 1 IoCs

Processes:

371c76d36256463a54d34e12d6741720.exe

pid process

3300 371c76d36256463a54d34e12d6741720.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

371c76d36256463a54d34e12d6741720.exe

description pid process target process

PID 3300 set thread context of 1692 3300 371c76d36256463a54d34e12d6741720.exe 371c76d36256463a54d34e12d6741720.exe

pid	process
3300	371c76d36256463a54d34e12d6741720.exe

description	pid	process	target process
PID 3300 set thread context of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
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
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe
File opened for modification	C:\Windows\WindowsUpdate.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 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

WaaSMedicAgent.exeWaaSMedicAgent.exeWaaSMedicAgent.exesvchost.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

371c76d36256463a54d34e12d6741720.exe

pid process

1692 371c76d36256463a54d34e12d6741720.exe
1692 371c76d36256463a54d34e12d6741720.exe

pid	process
1692	371c76d36256463a54d34e12d6741720.exe
1692	371c76d36256463a54d34e12d6741720.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

svchost.exesvchost.exeTiWorker.exe

description	pid	process
Token: SeShutdownPrivilege	788	svchost.exe
Token: SeCreatePagefilePrivilege	788	svchost.exe
Token: SeShutdownPrivilege	788	svchost.exe
Token: SeCreatePagefilePrivilege	788	svchost.exe
Token: SeShutdownPrivilege	788	svchost.exe
Token: SeCreatePagefilePrivilege	788	svchost.exe
Token: SeShutdownPrivilege	1864	svchost.exe
Token: SeCreatePagefilePrivilege	1864	svchost.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe
Token: SeSecurityPrivilege	2608	TiWorker.exe
Token: SeBackupPrivilege	2608	TiWorker.exe
Token: SeRestorePrivilege	2608	TiWorker.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

371c76d36256463a54d34e12d6741720.exesvchost.exe

description	pid	process	target process
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 3300 wrote to memory of 1692	3300	371c76d36256463a54d34e12d6741720.exe	371c76d36256463a54d34e12d6741720.exe
PID 1864 wrote to memory of 2164	1864	svchost.exe	MoUsoCoreWorker.exe
PID 1864 wrote to memory of 2164	1864	svchost.exe	MoUsoCoreWorker.exe

C:\Users\Admin\AppData\Local\Temp\371c76d36256463a54d34e12d6741720.exe
"C:\Users\Admin\AppData\Local\Temp\371c76d36256463a54d34e12d6741720.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3300

C:\Users\Admin\AppData\Local\Temp\371c76d36256463a54d34e12d6741720.exe
"C:\Users\Admin\AppData\Local\Temp\371c76d36256463a54d34e12d6741720.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:1692

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 8d45c801146088e00e2c8e6ae8cb319a yHPgqmqVy0SwL0XrNvskGw.0.1.0.3.0
1⤵
- Modifies data under HKEY_USERS
PID:2352

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:788

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s UsoSvc
1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864

C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
C:\Windows\uus\AMD64\MoUsoCoreWorker.exe
2⤵
PID:2164

C:\Windows\System32\sihclient.exe
C:\Windows\System32\sihclient.exe /cv yHPgqmqVy0SwL0XrNvskGw.0.2
1⤵
PID:2644

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.22000.100_none_04da31ff4c67c24a\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:2608

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 8d45c801146088e00e2c8e6ae8cb319a yHPgqmqVy0SwL0XrNvskGw.0.1.0.3.0
1⤵
- Modifies data under HKEY_USERS
PID:3680

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 8d45c801146088e00e2c8e6ae8cb319a yHPgqmqVy0SwL0XrNvskGw.0.1.0.3.0
1⤵
- Modifies data under HKEY_USERS
PID:1972

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsqFCAB.tmp\ztqv.dll
MD5
97d84d39bb68b5a29e976b40d7d0a00c

SHA1
cf4c09487fffb9ace9ab6b82f33da0d5a851ef1c

SHA256
5b29c5ee49d9cdde15d88a9e4f8f6b4bba9e2dc4ec65c02d734726fe0f2952c8

SHA512
aab5b8831538f96c00e77f16349065bfaa93e7b25206a6d5fe0871f518f38ae31437f2f9f93f36f488e1869eaf97dd4697a282d726ce9a292cf4276242733546

Download Submit
memory/788-146-0x000001EB42B20000-0x000001EB42B30000-memory.dmp

Filesize
64KB

Download
memory/788-147-0x000001EB42BA0000-0x000001EB42BB0000-memory.dmp

Filesize
64KB

Download
memory/788-148-0x000001EB45290000-0x000001EB45294000-memory.dmp

Filesize
16KB

Download
memory/1692-150-0x0000000000000000-mapping.dmp

Download
memory/1692-151-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1692-152-0x0000000000C20000-0x0000000000F76000-memory.dmp

Filesize
3.3MB

Download
memory/2164-153-0x0000000000000000-mapping.dmp

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads