xloader | dd045167dcef2337c3fa44feafc1d6df945e674c6b62a919297e50ae8066fab7

General

Target

Original Shipment Doc Ref 2853801324189923.exe
Size

1.0MB
MD5

9f752a9587909dee2a9467d7fbed1b21
SHA1

cfdf4da7770a40a660efe35473f248a10f2dee96
SHA256

42c76dbf2485d58e38ffccc5cdd20539e4bae8a00b90f4633f453065d20b04cd
SHA512

83c6dbf4752398ca54dca1f9fc7d325ef87a0ee3580b4e9f8a33353983c5c23e70a41bb614d2beb71e74c01034492a72448c9f01fa39b03657d2546bb0b98a11

Score

10^/10

xloader epns loader persistence rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epns

C2

http://www.lnvietnam.online/epns/

Decoy

mmfaccao.com

blttsperma.quest

946abe.net

indispensablehands.com

jkformationfrance.com

phonerepaire.com

lienquan-trian.com

youkuti.com

empowermindbodystudios.com

seunicapf.com

fk-link.xyz

kunai.tech

difficultbutdoablebrand.com

ejworkspace.com

teracorp.biz

thekids.today

quintaalentejana.com

annaviruksham.com

jshengrong.com

nsmetalmakina.xyz

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/1664-64-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1664-65-0x000000000041D410-mapping.dmp	xloader
behavioral1/memory/1664-70-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1624-75-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Original Shipment Doc Ref 2853801324189923.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Rbjuibq = "C:\\Users\\Public\\Libraries\\qbiujbR.url"	Original Shipment Doc Ref 2853801324189923.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Original Shipment Doc Ref 2853801324189923.exeOriginal Shipment Doc Ref 2853801324189923.execmd.exe

description	pid	process	target process
PID 1848 set thread context of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1664 set thread context of 1200	1664	Original Shipment Doc Ref 2853801324189923.exe	Explorer.EXE
PID 1664 set thread context of 1200	1664	Original Shipment Doc Ref 2853801324189923.exe	Explorer.EXE
PID 1624 set thread context of 1200	1624	cmd.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

Original Shipment Doc Ref 2853801324189923.execmd.exe

pid	process
1664	Original Shipment Doc Ref 2853801324189923.exe
1664	Original Shipment Doc Ref 2853801324189923.exe
1664	Original Shipment Doc Ref 2853801324189923.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe
1624	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE

pid	process
1200	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Original Shipment Doc Ref 2853801324189923.execmd.exe

pid	process
1664	Original Shipment Doc Ref 2853801324189923.exe
1664	Original Shipment Doc Ref 2853801324189923.exe
1664	Original Shipment Doc Ref 2853801324189923.exe
1664	Original Shipment Doc Ref 2853801324189923.exe
1624	cmd.exe
1624	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Original Shipment Doc Ref 2853801324189923.execmd.exe

description pid process

Token: SeDebugPrivilege 1664 Original Shipment Doc Ref 2853801324189923.exe
Token: SeDebugPrivilege 1624 cmd.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1664	Original Shipment Doc Ref 2853801324189923.exe
Token: SeDebugPrivilege	1624	cmd.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Original Shipment Doc Ref 2853801324189923.exeExplorer.EXE

description	pid	process	target process
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1848 wrote to memory of 1664	1848	Original Shipment Doc Ref 2853801324189923.exe	Original Shipment Doc Ref 2853801324189923.exe
PID 1200 wrote to memory of 1624	1200	Explorer.EXE	cmd.exe
PID 1200 wrote to memory of 1624	1200	Explorer.EXE	cmd.exe
PID 1200 wrote to memory of 1624	1200	Explorer.EXE	cmd.exe
PID 1200 wrote to memory of 1624	1200	Explorer.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe
"C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1848

C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe
"C:\Users\Admin\AppData\Local\Temp\Original Shipment Doc Ref 2853801324189923.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1664

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:836

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1624

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/1200-69-0x00000000044E0000-0x0000000004590000-memory.dmp

Filesize
704KB

Download
memory/1200-78-0x0000000004B40000-0x0000000004BF4000-memory.dmp

Filesize
720KB

Download
memory/1200-72-0x0000000006130000-0x0000000006241000-memory.dmp

Filesize
1.1MB

Download
memory/1624-73-0x0000000000000000-mapping.dmp

Download
memory/1624-75-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/1624-77-0x0000000001E20000-0x0000000001EB0000-memory.dmp

Filesize
576KB

Download
memory/1624-76-0x0000000001ED0000-0x00000000021D3000-memory.dmp

Filesize
3.0MB

Download
memory/1624-74-0x000000004ABA0000-0x000000004ABEC000-memory.dmp

Filesize
304KB

Download
memory/1664-67-0x00000000006E0000-0x00000000009E3000-memory.dmp

Filesize
3.0MB

Download
memory/1664-70-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1664-71-0x0000000000570000-0x0000000000581000-memory.dmp

Filesize
68KB

Download
memory/1664-63-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1664-64-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1664-68-0x0000000000530000-0x0000000000541000-memory.dmp

Filesize
68KB

Download
memory/1664-65-0x000000000041D410-mapping.dmp

Download
memory/1848-62-0x00000000002E1000-0x00000000002F5000-memory.dmp

Filesize
80KB

Download
memory/1848-60-0x00000000757C1000-0x00000000757C3000-memory.dmp

Filesize
8KB

Download
memory/1848-61-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads