xloader | 2fad61e5630cde696d8ea57db27d521ed4ff87ae0c5e692c597171439ae6d01c

General

Target

vbc.exe
Size

283KB
MD5

3003d7f5f37555dda6aaedc46ebffb6e
SHA1

2fc3bfb42f58a9c1c6c9383015347b9c8935d14f
SHA256

2fad61e5630cde696d8ea57db27d521ed4ff87ae0c5e692c597171439ae6d01c
SHA512

c9df0576f1f92639c69c79cd230ce80a4b8606791e0be99660fb119e207ff894b6c10f31fbba70699dc7e296c8e061130e5eb765e2eef521e602a8918f32e050

Score

10^/10

xloader tn61 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.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
behavioral2/memory/4528-132-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4528-138-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4588-141-0x0000000001220000-0x000000000124B000-memory.dmp	xloader
behavioral2/memory/4588-145-0x0000000001220000-0x000000000124B000-memory.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.execvtres.execolorcpl.exe

description	pid	process	target process
PID 2508 set thread context of 4528	2508	vbc.exe	cvtres.exe
PID 4528 set thread context of 3304	4528	cvtres.exe	Explorer.EXE
PID 4588 set thread context of 3304	4588	colorcpl.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

cvtres.execolorcpl.exe

pid	process
4528	cvtres.exe
4528	cvtres.exe
4528	cvtres.exe
4528	cvtres.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe
4588	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3304 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

cvtres.execolorcpl.exe

pid process

4528 cvtres.exe
4528 cvtres.exe
4528 cvtres.exe
4588 colorcpl.exe
4588 colorcpl.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.execolorcpl.exe

description pid process

Token: SeDebugPrivilege 4528 cvtres.exe
Token: SeDebugPrivilege 4588 colorcpl.exe

pid	process
3304	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4528	cvtres.exe
Token: SeDebugPrivilege	4588	colorcpl.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

vbc.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 2508 wrote to memory of 4528	2508	vbc.exe	cvtres.exe
PID 3304 wrote to memory of 4588	3304	Explorer.EXE	colorcpl.exe
PID 3304 wrote to memory of 4588	3304	Explorer.EXE	colorcpl.exe
PID 3304 wrote to memory of 4588	3304	Explorer.EXE	colorcpl.exe
PID 4588 wrote to memory of 3668	4588	colorcpl.exe	cmd.exe
PID 4588 wrote to memory of 3668	4588	colorcpl.exe	cmd.exe
PID 4588 wrote to memory of 3668	4588	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3304

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2508

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4528

C:\Windows\SysWOW64\colorcpl.exe
"C:\Windows\SysWOW64\colorcpl.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4588

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:3668

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2508-130-0x0000000000150000-0x000000000019C000-memory.dmp

Filesize
304KB

Download
memory/3304-136-0x00000000027B0000-0x00000000028C7000-memory.dmp

Filesize
1.1MB

Download
memory/3304-146-0x00000000080B0000-0x00000000081F3000-memory.dmp

Filesize
1.3MB

Download
memory/3304-144-0x00000000080B0000-0x00000000081F3000-memory.dmp

Filesize
1.3MB

Download
memory/3668-139-0x0000000000000000-mapping.dmp

Download
memory/4528-135-0x00000000010F0000-0x0000000001101000-memory.dmp

Filesize
68KB

Download
memory/4528-138-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4528-134-0x0000000001170000-0x00000000014BA000-memory.dmp

Filesize
3.3MB

Download
memory/4528-132-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4528-131-0x0000000000000000-mapping.dmp

Download
memory/4588-137-0x0000000000000000-mapping.dmp

Download
memory/4588-140-0x0000000000320000-0x0000000000339000-memory.dmp

Filesize
100KB

Download
memory/4588-142-0x0000000003120000-0x000000000346A000-memory.dmp

Filesize
3.3MB

Download
memory/4588-141-0x0000000001220000-0x000000000124B000-memory.dmp

Filesize
172KB

Download
memory/4588-143-0x0000000002FC0000-0x0000000003050000-memory.dmp

Filesize
576KB

Download
memory/4588-145-0x0000000001220000-0x000000000124B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads