xloader | 13bd267ca3d7af495f8cd8f72daf3ea997312671eafe9992a88768e4f3ecc601

General

Target

catzx.exe
Size

556KB
MD5

a505757fb36d0c2945985135b1de90cb
SHA1

0f90b28aa225725493ef72a9915bf0c5082ff992
SHA256

13bd267ca3d7af495f8cd8f72daf3ea997312671eafe9992a88768e4f3ecc601
SHA512

37d993fcb3774673a840d4e13e768c7160120c04746972f8efed6c4687e9872fcc175849193510190fbc5047ce89abcce5c3457955b85e7912c09c12b1f0f011

Score

10^/10

xloader r007 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

r007

Decoy

trashpandaservice.com

mobileads.network

ascolstore.com

gelsinextra.com

bonestell.net

heitoll.xyz

ceapgis.com

mon-lapin.biz

miq-eva.com

rematedesillas.com

playingonline.xyz

hausense.quest

tnyzw.com

appsdial.com

addcolor.city

hagenoblog.com

michaelwesleyj.com

she-zain.com

lorhsems.com

karmaserena.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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/948-64-0x000000000041D9B0-mapping.dmp	xloader
behavioral1/memory/948-63-0x0000000000400000-0x000000000042A000-memory.dmp	xloader
behavioral1/memory/948-69-0x0000000000400000-0x000000000042A000-memory.dmp	xloader
behavioral1/memory/688-74-0x00000000000D0000-0x00000000000FA000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1608 cmd.exe

pid	process
1608	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

catzx.execatzx.exechkdsk.exe

description	pid	process	target process
PID 860 set thread context of 948	860	catzx.exe	catzx.exe
PID 948 set thread context of 1196	948	catzx.exe	Explorer.EXE
PID 948 set thread context of 1196	948	catzx.exe	Explorer.EXE
PID 688 set thread context of 1196	688	chkdsk.exe	Explorer.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 13 IoCs

Processes:

catzx.execatzx.exechkdsk.exe

pid	process
860	catzx.exe
860	catzx.exe
860	catzx.exe
860	catzx.exe
948	catzx.exe
948	catzx.exe
948	catzx.exe
688	chkdsk.exe
688	chkdsk.exe
688	chkdsk.exe
688	chkdsk.exe
688	chkdsk.exe
688	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

catzx.exechkdsk.exe

pid process

948 catzx.exe
948 catzx.exe
948 catzx.exe
948 catzx.exe
688 chkdsk.exe
688 chkdsk.exe

pid	process
948	catzx.exe
948	catzx.exe
948	catzx.exe
948	catzx.exe
688	chkdsk.exe
688	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

catzx.execatzx.exeExplorer.EXEchkdsk.exe

description	pid	process
Token: SeDebugPrivilege	860	catzx.exe
Token: SeDebugPrivilege	948	catzx.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeDebugPrivilege	688	chkdsk.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

catzx.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 860 wrote to memory of 1264	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1264	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1264	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1264	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1236	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1236	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1236	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1236	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1776	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1776	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1776	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1776	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1700	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1700	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1700	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 1700	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 860 wrote to memory of 948	860	catzx.exe	catzx.exe
PID 1196 wrote to memory of 688	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 688	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 688	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 688	1196	Explorer.EXE	chkdsk.exe
PID 688 wrote to memory of 1608	688	chkdsk.exe	cmd.exe
PID 688 wrote to memory of 1608	688	chkdsk.exe	cmd.exe
PID 688 wrote to memory of 1608	688	chkdsk.exe	cmd.exe
PID 688 wrote to memory of 1608	688	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:860

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:948

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
PID:1700

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
PID:1776

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
PID:1236

C:\Users\Admin\AppData\Local\Temp\catzx.exe
"C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
PID:1264

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1160

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:688

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\catzx.exe"
3⤵
- Deletes itself
PID:1608

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/688-77-0x0000000001EB0000-0x0000000001F40000-memory.dmp

Filesize
576KB

Download
memory/688-74-0x00000000000D0000-0x00000000000FA000-memory.dmp

Filesize
168KB

Download
memory/688-75-0x0000000002010000-0x0000000002313000-memory.dmp

Filesize
3.0MB

Download
memory/688-73-0x00000000007A0000-0x00000000007A7000-memory.dmp

Filesize
28KB

Download
memory/688-72-0x0000000000000000-mapping.dmp

Download
memory/860-55-0x0000000075541000-0x0000000075543000-memory.dmp

Filesize
8KB

Download
memory/860-57-0x0000000000320000-0x000000000032A000-memory.dmp

Filesize
40KB

Download
memory/860-56-0x0000000004BD0000-0x0000000004C48000-memory.dmp

Filesize
480KB

Download
memory/860-58-0x0000000005280000-0x0000000005302000-memory.dmp

Filesize
520KB

Download
memory/860-59-0x0000000000980000-0x00000000009B0000-memory.dmp

Filesize
192KB

Download
memory/860-54-0x0000000000DF0000-0x0000000000E80000-memory.dmp

Filesize
576KB

Download
memory/948-61-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/948-66-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/948-69-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/948-70-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/948-67-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/948-60-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/948-63-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/948-64-0x000000000041D9B0-mapping.dmp

Download
memory/1196-68-0x0000000004B40000-0x0000000004CBC000-memory.dmp

Filesize
1.5MB

Download
memory/1196-71-0x0000000004050000-0x0000000004150000-memory.dmp

Filesize
1024KB

Download
memory/1196-78-0x0000000004360000-0x00000000043FF000-memory.dmp

Filesize
636KB

Download
memory/1608-76-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads