xloader | 40c96d51be2ae8a3360f39a25e522304df5999e05d99eeeeffb79fdc8fbbfd62

General

Target

SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe
Size

78KB
MD5

81c4e8651ea490441f63ef7e795e1f70
SHA1

7b53c0c0b565a78d77350a7698481ba72ae59649
SHA256

40c96d51be2ae8a3360f39a25e522304df5999e05d99eeeeffb79fdc8fbbfd62
SHA512

97ec96e28f1059f80841db8af650987105fb3dabe3645a3c5857eae242c7a6fcb408e16484c82efe4fefc820cdac3d1661546bf583732ac11850c6c934a700a8

Score

10^/10

xloader be4o loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

be4o

Decoy

neonewway.club

kuanghong.club

7bkj.com

ooo-club.com

kamchatka-agency.com

sjsndtvitzru.mobi

noireimpactcollective.net

justbe-event.com

easypeasy.community

southcoast.glass

janhenningsen.com

jmxyjj.com

tarihibilet.com

nagradi7.com

percentrostered.net

certvaxid.com

kingseafoodsydney.com

blacksheepwalk.com

waktuk.com

inteligenciaenrefrigeracion.com

Signatures

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

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4056-118-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4028-124-0x0000000004A40000-0x0000000004A69000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exeaspnet_compiler.exechkdsk.exe

description	pid	process	target process
PID 3628 set thread context of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 4056 set thread context of 396	4056	aspnet_compiler.exe	Explorer.EXE
PID 4028 set thread context of 396	4028	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

Processes:

aspnet_compiler.exechkdsk.exe

pid	process
4056	aspnet_compiler.exe
4056	aspnet_compiler.exe
4056	aspnet_compiler.exe
4056	aspnet_compiler.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe
4028	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

396 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

aspnet_compiler.exechkdsk.exe

pid process

4056 aspnet_compiler.exe
4056 aspnet_compiler.exe
4056 aspnet_compiler.exe
4028 chkdsk.exe
4028 chkdsk.exe

pid	process
396	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exeaspnet_compiler.exechkdsk.exe

description	pid	process
Token: SeDebugPrivilege	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe
Token: SeDebugPrivilege	4056	aspnet_compiler.exe
Token: SeDebugPrivilege	4028	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 3628 wrote to memory of 4056	3628	SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe	aspnet_compiler.exe
PID 396 wrote to memory of 4028	396	Explorer.EXE	chkdsk.exe
PID 396 wrote to memory of 4028	396	Explorer.EXE	chkdsk.exe
PID 396 wrote to memory of 4028	396	Explorer.EXE	chkdsk.exe
PID 4028 wrote to memory of 4300	4028	chkdsk.exe	cmd.exe
PID 4028 wrote to memory of 4300	4028	chkdsk.exe	cmd.exe
PID 4028 wrote to memory of 4300	4028	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:396

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.TrojanDownloader.Agent.KBO.23714.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3628

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4056

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4028

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
3⤵
PID:4300

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/396-122-0x0000000002970000-0x0000000002A69000-memory.dmp

Filesize
996KB

Download
memory/396-127-0x0000000002B20000-0x0000000002C07000-memory.dmp

Filesize
924KB

Download
memory/3628-115-0x0000000000F00000-0x0000000000F16000-memory.dmp

Filesize
88KB

Download
memory/3628-116-0x000000001CBC0000-0x000000001CBC2000-memory.dmp

Filesize
8KB

Download
memory/3628-117-0x0000000001760000-0x0000000001776000-memory.dmp

Filesize
88KB

Download
memory/4028-123-0x0000000000320000-0x000000000032A000-memory.dmp

Filesize
40KB

Download
memory/4028-124-0x0000000004A40000-0x0000000004A69000-memory.dmp

Filesize
164KB

Download
memory/4028-125-0x0000000004F60000-0x0000000005280000-memory.dmp

Filesize
3.1MB

Download
memory/4028-126-0x0000000004BF0000-0x0000000004D82000-memory.dmp

Filesize
1.6MB

Download
memory/4056-118-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4056-120-0x0000000001740000-0x0000000001A60000-memory.dmp

Filesize
3.1MB

Download
memory/4056-121-0x00000000012D0000-0x000000000146B000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads