xloader | ee5dd80f9946c3b8221409e1aed242cd36a8188850718f89722b48404906275e

General

Target

vbc.exe
Size

845KB
MD5

0becd341e0585b0c5a278e62a9727a9a
SHA1

71b8b08ab44bb93a2bacb3948a8dee5273f78488
SHA256

ee5dd80f9946c3b8221409e1aed242cd36a8188850718f89722b48404906275e
SHA512

9edfca50d1ebe082bd13ba32de078bca96a06c8bf18b56471f12adfd3a05830eb821f5ce26404d1e2bea48b3dda3b74b06ae3f4922de2c1842f17329173a1cb9

Score

10^/10

xloader nt3f loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

nt3f

Decoy

tricyclee.com

kxsw999.com

wisteria-pavilion.com

bellaclancy.com

promissioskincare.com

hzy001.xyz

checkouthomehd.com

soladere.com

point4sales.com

socalmafia.com

libertadysarmiento.online

nftthirty.com

digitalgoldcryptostock.net

tulekiloscaird.com

austinfishandchicken.com

wlxxch.com

mgav51.xyz

landbanking.global

saprove.com

babyfaces.skin

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
behavioral1/memory/1404-64-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1760-75-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeraserver.exe

description	pid	process	target process
PID 1940 set thread context of 1404	1940	vbc.exe	vbc.exe
PID 1404 set thread context of 1284	1404	vbc.exe	Explorer.EXE
PID 1760 set thread context of 1284	1760	raserver.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

580 schtasks.exe

pid	process
580	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

vbc.exepowershell.exeraserver.exe

pid	process
1404	vbc.exe
1404	vbc.exe
1512	powershell.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe
1760	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeraserver.exe

pid process

1404 vbc.exe
1404 vbc.exe
1404 vbc.exe
1760 raserver.exe
1760 raserver.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vbc.exepowershell.exeraserver.exe

description pid process

Token: SeDebugPrivilege 1404 vbc.exe
Token: SeDebugPrivilege 1512 powershell.exe
Token: SeDebugPrivilege 1760 raserver.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1404	vbc.exe
Token: SeDebugPrivilege	1512	powershell.exe
Token: SeDebugPrivilege	1760	raserver.exe

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

vbc.exeExplorer.EXE

description	pid	process	target process
PID 1940 wrote to memory of 1512	1940	vbc.exe	powershell.exe
PID 1940 wrote to memory of 1512	1940	vbc.exe	powershell.exe
PID 1940 wrote to memory of 1512	1940	vbc.exe	powershell.exe
PID 1940 wrote to memory of 1512	1940	vbc.exe	powershell.exe
PID 1940 wrote to memory of 580	1940	vbc.exe	schtasks.exe
PID 1940 wrote to memory of 580	1940	vbc.exe	schtasks.exe
PID 1940 wrote to memory of 580	1940	vbc.exe	schtasks.exe
PID 1940 wrote to memory of 580	1940	vbc.exe	schtasks.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1940 wrote to memory of 1404	1940	vbc.exe	vbc.exe
PID 1284 wrote to memory of 1760	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1760	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1760	1284	Explorer.EXE	raserver.exe
PID 1284 wrote to memory of 1760	1284	Explorer.EXE	raserver.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284

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:1940

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\szzAArbkCRJS.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1512

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\szzAArbkCRJS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAE87.tmp"
3⤵
- Creates scheduled task(s)
PID:580

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:1404

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1760

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpAE87.tmp
MD5
581192fce416bcb372caab725dc686ba

SHA1
df1f087d15ce1d12d7172052bc33354dd15d6026

SHA256
4e37c5d310089c96191ebef5a30855d48b6bffb21a62f13edf0f48c57cb18c2a

SHA512
e65d86ebe9a30723340ca76eb24c57a96393626b83baaeb58696b60024d387fe3de550f50d0d88cf671493734d5c5d9ccd1f9b03c69aa917fb7618859a0f816b

Download Submit
memory/1284-78-0x0000000006A70000-0x0000000006B84000-memory.dmp

Filesize
1.1MB

Download
memory/1284-70-0x00000000051A0000-0x0000000005269000-memory.dmp

Filesize
804KB

Download
memory/1404-68-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1404-69-0x0000000000430000-0x0000000000441000-memory.dmp

Filesize
68KB

Download
memory/1404-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1404-63-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1404-64-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1512-72-0x0000000002480000-0x00000000030CA000-memory.dmp

Filesize
12.3MB

Download
memory/1512-71-0x0000000002480000-0x00000000030CA000-memory.dmp

Filesize
12.3MB

Download
memory/1760-74-0x0000000000220000-0x000000000023C000-memory.dmp

Filesize
112KB

Download
memory/1760-75-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1760-76-0x0000000001FB0000-0x00000000022B3000-memory.dmp

Filesize
3.0MB

Download
memory/1760-77-0x0000000001E20000-0x0000000001EB0000-memory.dmp

Filesize
576KB

Download
memory/1940-59-0x0000000005720000-0x00000000057CA000-memory.dmp

Filesize
680KB

Download
memory/1940-58-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1940-57-0x0000000000A80000-0x0000000000A8E000-memory.dmp

Filesize
56KB

Download
memory/1940-56-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

Download
memory/1940-54-0x0000000000C20000-0x0000000000CFA000-memory.dmp

Filesize
872KB

Download
memory/1940-55-0x00000000760F1000-0x00000000760F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads