xloader | 9508c04b4c1dd578c8c3b8597a68bb73548b107edcbb37f13909a18d85f78b3a

General

Target

vbc.exe
Size

380KB
MD5

2953a7fb129cbb29a3f913e5e1f01d1b
SHA1

88cc356cf7566c6c5fff68821023c97f4c79d151
SHA256

9508c04b4c1dd578c8c3b8597a68bb73548b107edcbb37f13909a18d85f78b3a
SHA512

ae6da55999c04bf051744147f8caabf283b1b12f88385b1279a1109e72c4589be015e7f3338df2a4f9a673e332d156eb801fd74baeb6ba6b0192869303e9bcdc

Score

10^/10

xloader euzn loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

euzn

C2

http://www.heser.net/euzn/

Decoy

235296tyc.com

gold12guide.art

baibuaherb.com

weberwines.tax

chezvitoria.com

aidenb.tech

pitchdeckservice.com

surgeryforfdf.xyz

workunvaccinated.com

hrtaro.com

yourotcs.com

sonimultispecialityclinic.com

consultantadvisors.com

pentesting-consulting.com

dantechs.digital

longshifa.online

taweilai.net

imyusuke.com

cashndashfinancial.com

fasiglimt.quest

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4016-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4016-125-0x000000000041D420-mapping.dmp	xloader
behavioral2/memory/520-132-0x00000000005D0000-0x00000000005F9000-memory.dmp	xloader

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.execolorcpl.exe

description	pid	process	target process
PID 4076 set thread context of 4016	4076	vbc.exe	vbc.exe
PID 4016 set thread context of 2872	4016	vbc.exe	Explorer.EXE
PID 520 set thread context of 2872	520	colorcpl.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

vbc.execolorcpl.exe

pid	process
4016	vbc.exe
4016	vbc.exe
4016	vbc.exe
4016	vbc.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe
520	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2872 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.execolorcpl.exe

pid process

4016 vbc.exe
4016 vbc.exe
4016 vbc.exe
520 colorcpl.exe
520 colorcpl.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

vbc.execolorcpl.exe

description pid process

Token: SeDebugPrivilege 4016 vbc.exe
Token: SeDebugPrivilege 520 colorcpl.exe

pid	process
2872	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4016	vbc.exe
Token: SeDebugPrivilege	520	colorcpl.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

vbc.exeExplorer.EXEcolorcpl.exe

description	pid	process	target process
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 4076 wrote to memory of 4016	4076	vbc.exe	vbc.exe
PID 2872 wrote to memory of 520	2872	Explorer.EXE	colorcpl.exe
PID 2872 wrote to memory of 520	2872	Explorer.EXE	colorcpl.exe
PID 2872 wrote to memory of 520	2872	Explorer.EXE	colorcpl.exe
PID 520 wrote to memory of 1684	520	colorcpl.exe	cmd.exe
PID 520 wrote to memory of 1684	520	colorcpl.exe	cmd.exe
PID 520 wrote to memory of 1684	520	colorcpl.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2872

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:4076

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:4016

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:520

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
PID:1684

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

Loading Replay Monitor...

Downloads

memory/520-135-0x00000000040C0000-0x0000000004150000-memory.dmp

Filesize
576KB

Download
memory/520-133-0x0000000004340000-0x0000000004660000-memory.dmp

Filesize
3.1MB

Download
memory/520-131-0x0000000000950000-0x0000000000969000-memory.dmp

Filesize
100KB

Download
memory/520-132-0x00000000005D0000-0x00000000005F9000-memory.dmp

Filesize
164KB

Download
memory/520-130-0x0000000000000000-mapping.dmp

Download
memory/1684-134-0x0000000000000000-mapping.dmp

Download
memory/2872-129-0x0000000006820000-0x000000000694B000-memory.dmp

Filesize
1.2MB

Download
memory/2872-136-0x0000000003010000-0x0000000003107000-memory.dmp

Filesize
988KB

Download
memory/4016-128-0x00000000013B0000-0x000000000145E000-memory.dmp

Filesize
696KB

Download
memory/4016-125-0x000000000041D420-mapping.dmp

Download
memory/4016-127-0x0000000001930000-0x0000000001C50000-memory.dmp

Filesize
3.1MB

Download
memory/4016-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4076-115-0x0000000000FB0000-0x0000000000FB1000-memory.dmp

Filesize
4KB

Download
memory/4076-123-0x0000000008EF0000-0x0000000008F3B000-memory.dmp

Filesize
300KB

Download
memory/4076-122-0x0000000008E00000-0x0000000008E01000-memory.dmp

Filesize
4KB

Download
memory/4076-121-0x0000000005980000-0x0000000005E7E000-memory.dmp

Filesize
5.0MB

Download
memory/4076-120-0x0000000005A00000-0x0000000005A06000-memory.dmp

Filesize
24KB

Download
memory/4076-119-0x0000000005940000-0x0000000005941000-memory.dmp

Filesize
4KB

Download
memory/4076-118-0x0000000005850000-0x0000000005851000-memory.dmp

Filesize
4KB

Download
memory/4076-117-0x0000000005E80000-0x0000000005E81000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads