xloader | 995c349e77a02cf1d77af852797437f2cd89914f41f493fa7f352549f374d7d3

General

Target

vbc.exe
Size

761KB
MD5

1c3047465bb31dd2ac45101680301992
SHA1

36219c9148dafb036bc5871c440cbcf959d1b683
SHA256

995c349e77a02cf1d77af852797437f2cd89914f41f493fa7f352549f374d7d3
SHA512

cc4ef5a89b34067434e478a8e9d96e212dc1cdb0b8c128d7ab6890e91cb4c4f0170270b86ae872219c4adfbe1bcb19490beadbe65ae4f296aabc9b802ed93d74

Score

10^/10

xloader arup loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

arup

C2

http://www.sapphiretype.com/arup/

Decoy

mezonpezon.com

bellapbd.com

xn--2kr800ab2z.group

cupecoysuites.com

extractselect.com

cherrycooky.com

reshawna.com

bluewinetours.com

dez2fly.com

washedproductions.com

om-asahi-kasei-jp.com

talkingpoint.tours

avaspacecompany.com

fbtvmall.com

trocaoferta.com

mionegozio.com

reitschuetz.com

basepicks.com

networkagricity.com

kastore.club

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1564-59-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1564-60-0x000000000041D4B0-mapping.dmp	xloader
behavioral1/memory/1600-69-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1104 cmd.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1104	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeexplorer.exe

description	pid	process	target process
PID 1268 set thread context of 1564	1268	vbc.exe	vbc.exe
PID 1564 set thread context of 1400	1564	vbc.exe	Explorer.EXE
PID 1600 set thread context of 1400	1600	explorer.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

vbc.exeexplorer.exe

pid process

1564 vbc.exe
1564 vbc.exe
1600 explorer.exe
1600 explorer.exe
1600 explorer.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeexplorer.exe

pid process

1564 vbc.exe
1564 vbc.exe
1564 vbc.exe
1600 explorer.exe
1600 explorer.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 1564 vbc.exe
Token: SeDebugPrivilege 1600 explorer.exe

pid	process
1564	vbc.exe
1564	vbc.exe
1600	explorer.exe
1600	explorer.exe
1600	explorer.exe

pid	process
1564	vbc.exe
1564	vbc.exe
1564	vbc.exe
1600	explorer.exe
1600	explorer.exe

description	pid	process
Token: SeDebugPrivilege	1564	vbc.exe
Token: SeDebugPrivilege	1600	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

vbc.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1268 wrote to memory of 1564	1268	vbc.exe	vbc.exe
PID 1400 wrote to memory of 1600	1400	Explorer.EXE	explorer.exe
PID 1400 wrote to memory of 1600	1400	Explorer.EXE	explorer.exe
PID 1400 wrote to memory of 1600	1400	Explorer.EXE	explorer.exe
PID 1400 wrote to memory of 1600	1400	Explorer.EXE	explorer.exe
PID 1600 wrote to memory of 1104	1600	explorer.exe	cmd.exe
PID 1600 wrote to memory of 1104	1600	explorer.exe	cmd.exe
PID 1600 wrote to memory of 1104	1600	explorer.exe	cmd.exe
PID 1600 wrote to memory of 1104	1600	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1400

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:1268

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:1564

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1600

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
- Deletes itself
PID:1104

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1104-67-0x0000000000000000-mapping.dmp

Download
memory/1268-53-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/1268-55-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/1268-56-0x0000000000A50000-0x0000000000A6D000-memory.dmp

Filesize
116KB

Download
memory/1268-57-0x00000000053C0000-0x000000000542B000-memory.dmp

Filesize
428KB

Download
memory/1268-58-0x0000000005430000-0x000000000546B000-memory.dmp

Filesize
236KB

Download
memory/1400-62-0x0000000004740000-0x0000000004814000-memory.dmp

Filesize
848KB

Download
memory/1564-63-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/1564-61-0x0000000000BB0000-0x0000000000EB3000-memory.dmp

Filesize
3.0MB

Download
memory/1564-60-0x000000000041D4B0-mapping.dmp

Download
memory/1564-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1600-64-0x0000000000000000-mapping.dmp

Download
memory/1600-65-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download
memory/1600-66-0x0000000074761000-0x0000000074763000-memory.dmp

Filesize
8KB

Download
memory/1600-68-0x0000000000310000-0x0000000000591000-memory.dmp

Filesize
2.5MB

Download
memory/1600-69-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1600-70-0x00000000022F0000-0x00000000025F3000-memory.dmp

Filesize
3.0MB

Download
memory/1600-71-0x00000000021F0000-0x0000000002280000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads