xloader | affaec3e32d0244aaf424180de568e23d03da3eb6c43dcb0b82b4e5185731abc

General

Target

Carta de pago.exe
Size

357KB
MD5

03206cea63667d5f8e8861f554720473
SHA1

43bcabbfaffce6dfb7c5ec763f11ea85d8876dad
SHA256

c15f6faab41ea44719d795995c15024db0719fa5c9a731110587ec4e1e041fc2
SHA512

7552aae69b210e543f27d707952738df7f349daf99450e53b0a39729ea7bea5e31d34b9dc6b876ef2964f759f488a83a052a913125fb6b6f50767f994277e933

Score

10^/10

xloader kio8 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

kio8

Decoy

greeaircondition.com

thewilmingtonguide.com

cbluedotlivewdmall.com

globalcrime24.com

heightsplace.com

ghar.pro

asosbira.com

melolandia.com

velactun.com

erniesimms.com

nutbullet.com

drizzerstr.com

hnqym888.com

ghorowaseba.com

1317efoxchasedrive.info

stjudetroop623.com

facestaj.com

airpromaskaccessories.com

wolfetailors.com

56ohdc2016.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/4624-132-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2964-137-0x0000000000DA0000-0x0000000000DC9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

Carta de pago.exeCarta de pago.exechkdsk.exe

description	pid	process	target process
PID 3272 set thread context of 4624	3272	Carta de pago.exe	Carta de pago.exe
PID 4624 set thread context of 3024	4624	Carta de pago.exe	Explorer.EXE
PID 2964 set thread context of 3024	2964	chkdsk.exe	Explorer.EXE

Drops file in Windows directory 6 IoCs

Processes:

svchost.exe

description	ioc	process
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\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

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

Carta de pago.exechkdsk.exe

pid	process
4624	Carta de pago.exe
4624	Carta de pago.exe
4624	Carta de pago.exe
4624	Carta de pago.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe
2964	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Carta de pago.exeCarta de pago.exechkdsk.exe

pid process

3272 Carta de pago.exe
4624 Carta de pago.exe
4624 Carta de pago.exe
4624 Carta de pago.exe
2964 chkdsk.exe
2964 chkdsk.exe

pid	process
3024	Explorer.EXE

pid	process
3272	Carta de pago.exe
4624	Carta de pago.exe
4624	Carta de pago.exe
4624	Carta de pago.exe
2964	chkdsk.exe
2964	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

Carta de pago.exechkdsk.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	4624	Carta de pago.exe
Token: SeDebugPrivilege	2964	chkdsk.exe
Token: SeShutdownPrivilege	4832	svchost.exe
Token: SeCreatePagefilePrivilege	4832	svchost.exe
Token: SeShutdownPrivilege	4832	svchost.exe
Token: SeCreatePagefilePrivilege	4832	svchost.exe
Token: SeShutdownPrivilege	4832	svchost.exe
Token: SeCreatePagefilePrivilege	4832	svchost.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Carta de pago.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3272 wrote to memory of 3568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 3568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 3568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 1568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 1568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 1568	3272	Carta de pago.exe	cmd.exe
PID 3272 wrote to memory of 4624	3272	Carta de pago.exe	Carta de pago.exe
PID 3272 wrote to memory of 4624	3272	Carta de pago.exe	Carta de pago.exe
PID 3272 wrote to memory of 4624	3272	Carta de pago.exe	Carta de pago.exe
PID 3272 wrote to memory of 4624	3272	Carta de pago.exe	Carta de pago.exe
PID 3024 wrote to memory of 2964	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 2964	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 2964	3024	Explorer.EXE	chkdsk.exe
PID 2964 wrote to memory of 4492	2964	chkdsk.exe	cmd.exe
PID 2964 wrote to memory of 4492	2964	chkdsk.exe	cmd.exe
PID 2964 wrote to memory of 4492	2964	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\Carta de pago.exe
"C:\Users\Admin\AppData\Local\Temp\Carta de pago.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3272

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
3⤵
PID:3568

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c cls
3⤵
PID:1568

C:\Users\Admin\AppData\Local\Temp\Carta de pago.exe
"C:\Users\Admin\AppData\Local\Temp\Carta de pago.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4624

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Carta de pago.exe"
3⤵
PID:4492

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:4832

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2964-139-0x0000000001560000-0x00000000015EF000-memory.dmp

Filesize
572KB

Download
memory/2964-138-0x0000000001730000-0x0000000001A7A000-memory.dmp

Filesize
3.3MB

Download
memory/2964-137-0x0000000000DA0000-0x0000000000DC9000-memory.dmp

Filesize
164KB

Download
memory/2964-136-0x00000000008B0000-0x00000000008BA000-memory.dmp

Filesize
40KB

Download
memory/3024-135-0x0000000008710000-0x0000000008892000-memory.dmp

Filesize
1.5MB

Download
memory/3024-140-0x0000000003360000-0x0000000003443000-memory.dmp

Filesize
908KB

Download
memory/3272-130-0x00000000007AD000-0x00000000007B0000-memory.dmp

Filesize
12KB

Download
memory/4624-134-0x0000000000830000-0x0000000000840000-memory.dmp

Filesize
64KB

Download
memory/4624-131-0x0000000001040000-0x000000000138A000-memory.dmp

Filesize
3.3MB

Download
memory/4624-133-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/4624-132-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4832-141-0x000001EE29020000-0x000001EE29030000-memory.dmp

Filesize
64KB

Download
memory/4832-142-0x000001EE29080000-0x000001EE29090000-memory.dmp

Filesize
64KB

Download
memory/4832-143-0x000001EE2B750000-0x000001EE2B754000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads