xloader | 3415bf9691f4ab28096a930ff8992ce67e8eff44c9d44f7f626e7a87194e6072

General

Target

vbc.exe
Size

273KB
MD5

c52ecabaed16aba5fac89d694e7508dc
SHA1

492c8828a332dbcc0f68d5ee5b17d9ae994b48c4
SHA256

276c6876c250e5ebfd761d05937f5a48f7e4c9a6851293a77ab9bf683c8bbf80
SHA512

e8ab6c6c0388f879ba9b2a5628ba1d21b2a21c4c4d99dde017596e8107e5a439b840bc4e751e1af6444fd56046d7a567363aa1edb19d8094329c4324147d777f

Score

10^/10

xloader vweq loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

vweq

Decoy

malang-media.com

mrsfence.com

lubetops.com

aitimedia.net

montecryptocapital.com

ahwmedia.com

bvmnc.site

bggearstore.com

bcsantacoloma.online

alltimephotography.com

santacruz-roofings.com

leaplifestyleenterprises.com

censovet.com

similkameenfarms.com

undisclosed.email

thetrinityco.com

rapiturs.com

jedlersdorf.info

mh7jk12e.xyz

flygurlblogwordpress.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
behavioral1/memory/1936-59-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1936-60-0x000000000041F280-mapping.dmp	xloader
behavioral1/memory/1936-62-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1104-69-0x00000000000C0000-0x00000000000EB000-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 1052 set thread context of 1936	1052	vbc.exe	cvtres.exe
PID 1936 set thread context of 1236	1936	cvtres.exe	Explorer.EXE
PID 1104 set thread context of 1236	1104	colorcpl.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

cvtres.execolorcpl.exe

pid	process
1936	cvtres.exe
1936	cvtres.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe
1104	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

cvtres.execolorcpl.exe

pid process

1936 cvtres.exe
1936 cvtres.exe
1936 cvtres.exe
1104 colorcpl.exe
1104 colorcpl.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.execolorcpl.exe

description pid process

Token: SeDebugPrivilege 1936 cvtres.exe
Token: SeDebugPrivilege 1104 colorcpl.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1236 Explorer.EXE
1236 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1936	cvtres.exe
Token: SeDebugPrivilege	1104	colorcpl.exe

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

pid	process
1236	Explorer.EXE
1236	Explorer.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

vbc.exeExplorer.EXE

description	pid	process	target process
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1052 wrote to memory of 1936	1052	vbc.exe	cvtres.exe
PID 1236 wrote to memory of 1104	1236	Explorer.EXE	colorcpl.exe
PID 1236 wrote to memory of 1104	1236	Explorer.EXE	colorcpl.exe
PID 1236 wrote to memory of 1104	1236	Explorer.EXE	colorcpl.exe
PID 1236 wrote to memory of 1104	1236	Explorer.EXE	colorcpl.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236

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:1052

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:1936

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
PID:1104

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

Replay Monitor

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Downloads

memory/1052-54-0x0000000000A90000-0x0000000000AD8000-memory.dmp

Filesize
288KB

Download
memory/1052-55-0x00000000003C0000-0x00000000003F4000-memory.dmp

Filesize
208KB

Download
memory/1104-71-0x0000000000440000-0x00000000004D0000-memory.dmp

Filesize
576KB

Download
memory/1104-70-0x00000000022C0000-0x00000000025C3000-memory.dmp

Filesize
3.0MB

Download
memory/1104-69-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/1104-68-0x0000000000EA0000-0x0000000000EB8000-memory.dmp

Filesize
96KB

Download
memory/1104-67-0x00000000763E1000-0x00000000763E3000-memory.dmp

Filesize
8KB

Download
memory/1104-66-0x0000000000000000-mapping.dmp

Download
memory/1236-65-0x0000000004130000-0x000000000421C000-memory.dmp

Filesize
944KB

Download
memory/1236-72-0x0000000004E00000-0x0000000004EB3000-memory.dmp

Filesize
716KB

Download
memory/1236-73-0x0000000004E00000-0x0000000004EB3000-memory.dmp

Filesize
716KB

Download
memory/1936-64-0x0000000000220000-0x0000000000231000-memory.dmp

Filesize
68KB

Download
memory/1936-63-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download
memory/1936-62-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1936-60-0x000000000041F280-mapping.dmp

Download
memory/1936-59-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1936-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1936-57-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads