xloader | 22c8527c55a52f56653e38bf1f2dbc8ccc06ab0f0ab16879138f30037b710b0a

General

Target

SNO22 PriceLetter595406_RACX-159814.exe
Size

373KB
MD5

7692a9ecc1b4d092387cffe6faa8d762
SHA1

37e70527d40c881115036ae2de66e3685d3a8f10
SHA256

22c8527c55a52f56653e38bf1f2dbc8ccc06ab0f0ab16879138f30037b710b0a
SHA512

e0c02c683d444ad442c1758113f875687df702402270dc7705b1b12c49e8c88e82b022f88f8d5a1767a43fdcf0f41a2bdbf281703b9dc97c322dd2cf68ff765a

Score

10^/10

xloader p8ce loader persistence rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

p8ce

Decoy

wishmeluck1.xyz

nawabumi.com

terra.fish

eoraipsumami.quest

awakeningyourid.com

csyein.com

tslsinteligentes.com

cataractusa.com

capitalwheelstogo.com

staffremotely.com

trashbinwasher.com

blaneyparkrendezvous.com

yolrt.com

northendtaproom.com

showgeini.com

b95206.com

almcpersonaltraining.com

lovabledoodleshome.com

woodlandstationcondos.com

nikahlive.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4040-306-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1432-312-0x0000000000BC0000-0x0000000000BE9000-memory.dmp	xloader

Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Suspicious use of SetThreadContext 3 IoCs

Processes:

SNO22 PriceLetter595406_RACX-159814.exeSNO22 PriceLetter595406_RACX-159814.execscript.exe

description	pid	process	target process
PID 3644 set thread context of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 4040 set thread context of 2424	4040	SNO22 PriceLetter595406_RACX-159814.exe	Explorer.EXE
PID 1432 set thread context of 2424	1432	cscript.exe	Explorer.EXE

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

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

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 40 IoCs

Processes:

SNO22 PriceLetter595406_RACX-159814.execscript.exe

pid	process
4040	SNO22 PriceLetter595406_RACX-159814.exe
4040	SNO22 PriceLetter595406_RACX-159814.exe
4040	SNO22 PriceLetter595406_RACX-159814.exe
4040	SNO22 PriceLetter595406_RACX-159814.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe
1432	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2424 Explorer.EXE

pid	process
2424	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

SNO22 PriceLetter595406_RACX-159814.execscript.exe

pid	process
4040	SNO22 PriceLetter595406_RACX-159814.exe
4040	SNO22 PriceLetter595406_RACX-159814.exe
4040	SNO22 PriceLetter595406_RACX-159814.exe
1432	cscript.exe
1432	cscript.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

SNO22 PriceLetter595406_RACX-159814.execscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4040	SNO22 PriceLetter595406_RACX-159814.exe
Token: SeDebugPrivilege	1432	cscript.exe
Token: SeShutdownPrivilege	2424	Explorer.EXE
Token: SeCreatePagefilePrivilege	2424	Explorer.EXE
Token: SeShutdownPrivilege	2424	Explorer.EXE
Token: SeCreatePagefilePrivilege	2424	Explorer.EXE
Token: SeShutdownPrivilege	2424	Explorer.EXE
Token: SeCreatePagefilePrivilege	2424	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

SNO22 PriceLetter595406_RACX-159814.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 3644 wrote to memory of 4040	3644	SNO22 PriceLetter595406_RACX-159814.exe	SNO22 PriceLetter595406_RACX-159814.exe
PID 2424 wrote to memory of 1432	2424	Explorer.EXE	cscript.exe
PID 2424 wrote to memory of 1432	2424	Explorer.EXE	cscript.exe
PID 2424 wrote to memory of 1432	2424	Explorer.EXE	cscript.exe
PID 1432 wrote to memory of 336	1432	cscript.exe	cmd.exe
PID 1432 wrote to memory of 336	1432	cscript.exe	cmd.exe
PID 1432 wrote to memory of 336	1432	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2424

C:\Users\Admin\AppData\Local\Temp\SNO22 PriceLetter595406_RACX-159814.exe
"C:\Users\Admin\AppData\Local\Temp\SNO22 PriceLetter595406_RACX-159814.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3644

C:\Users\Admin\AppData\Local\Temp\SNO22 PriceLetter595406_RACX-159814.exe
"C:\Users\Admin\AppData\Local\Temp\SNO22 PriceLetter595406_RACX-159814.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4040

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1432

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SNO22 PriceLetter595406_RACX-159814.exe"
3⤵
PID:336

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation -p
1⤵
PID:3164

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe 279abbe49442db908f67ea628b329132 u3pCchQsYkujnCz7FYwSeA.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1424

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k wusvcs -p
1⤵
PID:2916

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1432-314-0x0000000004D70000-0x0000000004E00000-memory.dmp

Filesize
576KB

Download
memory/1432-313-0x0000000004F10000-0x000000000525A000-memory.dmp

Filesize
3.3MB

Download
memory/1432-311-0x0000000000ED0000-0x0000000000EF7000-memory.dmp

Filesize
156KB

Download
memory/1432-312-0x0000000000BC0000-0x0000000000BE9000-memory.dmp

Filesize
164KB

Download
memory/2424-310-0x0000000007CB0000-0x0000000007DAD000-memory.dmp

Filesize
1012KB

Download
memory/2424-315-0x0000000007BB0000-0x0000000007CA5000-memory.dmp

Filesize
980KB

Download
memory/3644-133-0x00000000051E0000-0x00000000051EA000-memory.dmp

Filesize
40KB

Download
memory/3644-305-0x0000000007990000-0x0000000007A2C000-memory.dmp

Filesize
624KB

Download
memory/3644-134-0x0000000005090000-0x0000000005122000-memory.dmp

Filesize
584KB

Download
memory/3644-130-0x0000000000720000-0x0000000000784000-memory.dmp

Filesize
400KB

Download
memory/3644-132-0x0000000005130000-0x00000000051C2000-memory.dmp

Filesize
584KB

Download
memory/3644-131-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/4040-308-0x0000000000EB0000-0x000000000165A000-memory.dmp

Filesize
7.7MB

Download
memory/4040-309-0x0000000000E40000-0x0000000000E51000-memory.dmp

Filesize
68KB

Download
memory/4040-306-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads