xloader | 6934dc8f453b1832dc1a7579a1b3888a1e7e4a7ab19f30fe975bbed018388ace

General

Target

vbc.exe
Size

553KB
MD5

4add727d1541102e34e167c689892d98
SHA1

368ef2217b4146efb0f2154900628c6e374828e8
SHA256

6934dc8f453b1832dc1a7579a1b3888a1e7e4a7ab19f30fe975bbed018388ace
SHA512

2fdc3db9cd0dad7fa365603060dc5da1b9a5708aa619c7c5b174c3a659d1e1c3bb0a18b124983a5204b84b80d0a80afc67058a6c241cfe45b85b504d0ab55e42

Score

10^/10

xloader r87g loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

r87g

Decoy

gzjyjzsj.com

rapibest.com

affordablebathroomsbyfrank.net

roboruben.com

xn--dlisucr-byag.com

encoreasso.com

piscire.com

dixiebusybee.com

newrome.xyz

sunshinejon.com

glacierforfcs.xyz

borhanmarket.com

tous-des-cons.club

hsfstea.com

spiniform.info

vaicomfibra.com

shinigami.xyz

kryptoindia.com

listentoappetite.com

securepplpay.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/4680-136-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4680-143-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1528-145-0x0000000000590000-0x00000000005B9000-memory.dmp	xloader
behavioral2/memory/1528-149-0x0000000000590000-0x00000000005B9000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

vbc.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation vbc.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	vbc.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.execscript.exe

description	pid	process	target process
PID 1548 set thread context of 4680	1548	vbc.exe	vbc.exe
PID 4680 set thread context of 2668	4680	vbc.exe	Explorer.EXE
PID 1528 set thread context of 2668	1528	cscript.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2012 schtasks.exe

pid	process
2012	schtasks.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

vbc.execscript.exepowershell.exe

pid	process
4680	vbc.exe
4680	vbc.exe
4680	vbc.exe
4680	vbc.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
3196	powershell.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
3196	powershell.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe
1528	cscript.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.execscript.exe

pid process

4680 vbc.exe
4680 vbc.exe
4680 vbc.exe
1528 cscript.exe
1528 cscript.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.execscript.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4680 vbc.exe
Token: SeDebugPrivilege 1528 cscript.exe
Token: SeDebugPrivilege 3196 powershell.exe

description	pid	process
Token: SeDebugPrivilege	4680	vbc.exe
Token: SeDebugPrivilege	1528	cscript.exe
Token: SeDebugPrivilege	3196	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

vbc.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 1548 wrote to memory of 3196	1548	vbc.exe	powershell.exe
PID 1548 wrote to memory of 3196	1548	vbc.exe	powershell.exe
PID 1548 wrote to memory of 3196	1548	vbc.exe	powershell.exe
PID 1548 wrote to memory of 2012	1548	vbc.exe	schtasks.exe
PID 1548 wrote to memory of 2012	1548	vbc.exe	schtasks.exe
PID 1548 wrote to memory of 2012	1548	vbc.exe	schtasks.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 1548 wrote to memory of 4680	1548	vbc.exe	vbc.exe
PID 2668 wrote to memory of 1528	2668	Explorer.EXE	cscript.exe
PID 2668 wrote to memory of 1528	2668	Explorer.EXE	cscript.exe
PID 2668 wrote to memory of 1528	2668	Explorer.EXE	cscript.exe
PID 1528 wrote to memory of 3516	1528	cscript.exe	cmd.exe
PID 1528 wrote to memory of 3516	1528	cscript.exe	cmd.exe
PID 1528 wrote to memory of 3516	1528	cscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:2668

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KFxbvgsVn.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3196

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KFxbvgsVn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2A.tmp"
3⤵
- Creates scheduled task(s)
PID:2012

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4680

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:1528

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
PID:3516

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Scripting

1

T1064

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2A.tmp
Filesize
1KB

MD5
13303ca93fb59536f1303f5dfb713356

SHA1
c095362c3e246fa1e5fa1a628adfd7e38d583b08

SHA256
af1097fad12db9c3560342ae6c917b3ae633a1e8a534404e3cb4d9e21ca78939

SHA512
d542db38c48c799624c1c0ad83a416b6d8c9a55b6515c0a6b4740aef185973efd0c0729918647e7aea6beff355d103ba1d7c05220da6fbcfccc5901b11b93e6a

Download Submit
memory/1528-142-0x0000000000000000-mapping.dmp

Download
memory/1528-150-0x00000000027D0000-0x0000000002860000-memory.dmp

Filesize
576KB

Download
memory/1528-149-0x0000000000590000-0x00000000005B9000-memory.dmp

Filesize
164KB

Download
memory/1528-147-0x00000000028A0000-0x0000000002BEA000-memory.dmp

Filesize
3.3MB

Download
memory/1528-145-0x0000000000590000-0x00000000005B9000-memory.dmp

Filesize
164KB

Download
memory/1528-144-0x0000000000330000-0x0000000000357000-memory.dmp

Filesize
156KB

Download
memory/1548-131-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/1548-130-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/1548-141-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/2012-133-0x0000000000000000-mapping.dmp

Download
memory/2668-140-0x0000000007E90000-0x0000000007FA9000-memory.dmp

Filesize
1.1MB

Download
memory/2668-151-0x0000000007FB0000-0x0000000008107000-memory.dmp

Filesize
1.3MB

Download
memory/2668-153-0x0000000007FB0000-0x0000000008107000-memory.dmp

Filesize
1.3MB

Download
memory/3196-148-0x0000000005300000-0x0000000005336000-memory.dmp

Filesize
216KB

Download
memory/3196-154-0x0000000005A70000-0x0000000005A92000-memory.dmp

Filesize
136KB

Download
memory/3196-164-0x0000000007E30000-0x0000000007EC6000-memory.dmp

Filesize
600KB

Download
memory/3196-163-0x0000000007C40000-0x0000000007C4A000-memory.dmp

Filesize
40KB

Download
memory/3196-162-0x0000000006F70000-0x0000000006F8A000-memory.dmp

Filesize
104KB

Download
memory/3196-132-0x0000000000000000-mapping.dmp

Download
memory/3196-161-0x00000000082A0000-0x000000000891A000-memory.dmp

Filesize
6.5MB

Download
memory/3196-152-0x0000000005AD0000-0x00000000060F8000-memory.dmp

Filesize
6.2MB

Download
memory/3196-160-0x0000000006E50000-0x0000000006E6E000-memory.dmp

Filesize
120KB

Download
memory/3196-159-0x0000000071B70000-0x0000000071BBC000-memory.dmp

Filesize
304KB

Download
memory/3196-155-0x0000000006270000-0x00000000062D6000-memory.dmp

Filesize
408KB

Download
memory/3196-156-0x00000000062E0000-0x0000000006346000-memory.dmp

Filesize
408KB

Download
memory/3196-157-0x0000000006950000-0x000000000696E000-memory.dmp

Filesize
120KB

Download
memory/3196-158-0x0000000006E70000-0x0000000006EA2000-memory.dmp

Filesize
200KB

Download
memory/3516-146-0x0000000000000000-mapping.dmp

Download
memory/4680-139-0x0000000000E20000-0x0000000000E31000-memory.dmp

Filesize
68KB

Download
memory/4680-138-0x0000000000EC0000-0x000000000120A000-memory.dmp

Filesize
3.3MB

Download
memory/4680-135-0x0000000000000000-mapping.dmp

Download
memory/4680-143-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4680-136-0x0000000000400000-0x0000000000429000-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