xloader | 27563e3971b4f2baf6bf551323b1538809038aa456d5e0c02dd5e6a902b8f0e6

General

Target

vbc.exe
Size

617KB
MD5

60b88477173379e55e2d5c678d2a32ff
SHA1

8dcccf0321468fa7e9c51f5cac81ac6da43c0cb5
SHA256

27563e3971b4f2baf6bf551323b1538809038aa456d5e0c02dd5e6a902b8f0e6
SHA512

8705510d538c1e565c7f19d633c1336311dbee239240ef0a2a45b61e37fdb83bb8300348c09e132a80f86cc208e19f532225c08d76644de69f948db951500805

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.gailrichardson.com/qjnt/

Decoy

funeralinsurancetoppro.info

californiaredstate.com

xn--jpr220deud640b.com

playx.finance

siamfellow.com

tekirdagvethelp.com

forrealmodels.com

desenergie.info

whynotplus.com

graniteinaminute.com

satgurucolorlabs.com

potviper.com

racevx.xyz

thebluefishhotel.net

elletesla.com

4608capaydrive.com

buckhead-meat.com

garage-repair-near-me.com

ubique.works

markokuzmanovicpreduzetnik.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2028-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2028-63-0x000000000041D090-mapping.dmp	xloader
behavioral1/memory/1996-71-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1556 cmd.exe
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
1556	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

vbc.exevbc.exeNAPSTAT.EXE

description	pid	process	target process
PID 1684 set thread context of 2028	1684	vbc.exe	vbc.exe
PID 2028 set thread context of 1228	2028	vbc.exe	Explorer.EXE
PID 1996 set thread context of 1228	1996	NAPSTAT.EXE	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	Explorer.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\Locked = "1"	Explorer.EXE

Modifies registry class 3 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\NodeSlots	Explorer.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\BagMRU\MRUListEx = ffffffff	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

vbc.exeNAPSTAT.EXE

pid	process
2028	vbc.exe
2028	vbc.exe
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE
1996	NAPSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

vbc.exeNAPSTAT.EXE

pid process

2028 vbc.exe
2028 vbc.exe
2028 vbc.exe
1996 NAPSTAT.EXE
1996 NAPSTAT.EXE

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

vbc.exeNAPSTAT.EXEExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2028	vbc.exe
Token: SeDebugPrivilege	1996	NAPSTAT.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE
Token: SeShutdownPrivilege	1228	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
1228 Explorer.EXE
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

1684 vbc.exe

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

pid	process
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE
1228	Explorer.EXE

pid	process
1684	vbc.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

vbc.exeExplorer.EXENAPSTAT.EXE

description	pid	process	target process
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1684 wrote to memory of 2028	1684	vbc.exe	vbc.exe
PID 1228 wrote to memory of 1996	1228	Explorer.EXE	NAPSTAT.EXE
PID 1228 wrote to memory of 1996	1228	Explorer.EXE	NAPSTAT.EXE
PID 1228 wrote to memory of 1996	1228	Explorer.EXE	NAPSTAT.EXE
PID 1228 wrote to memory of 1996	1228	Explorer.EXE	NAPSTAT.EXE
PID 1996 wrote to memory of 1556	1996	NAPSTAT.EXE	cmd.exe
PID 1996 wrote to memory of 1556	1996	NAPSTAT.EXE	cmd.exe
PID 1996 wrote to memory of 1556	1996	NAPSTAT.EXE	cmd.exe
PID 1996 wrote to memory of 1556	1996	NAPSTAT.EXE	cmd.exe
PID 1228 wrote to memory of 1288	1228	Explorer.EXE	explorer.exe
PID 1228 wrote to memory of 1288	1228	Explorer.EXE	explorer.exe
PID 1228 wrote to memory of 1288	1228	Explorer.EXE	explorer.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1228

C:\Users\Admin\AppData\Local\Temp\vbc.exe
"C:\Users\Admin\AppData\Local\Temp\vbc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1684

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:2028

C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
3⤵
- Deletes itself
PID:1556

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
2⤵
PID:1288

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1228-77-0x0000000009410000-0x000000000A766000-memory.dmp

Filesize
19.3MB

Download
memory/1228-75-0x0000000006E8C000-0x0000000006E94000-memory.dmp

Filesize
32KB

Download
memory/1228-67-0x00000000067D0000-0x0000000006930000-memory.dmp

Filesize
1.4MB

Download
memory/1288-74-0x000007FEFC2E1000-0x000007FEFC2E3000-memory.dmp

Filesize
8KB

Download
memory/1288-73-0x0000000000000000-mapping.dmp

Download
memory/1556-69-0x0000000000000000-mapping.dmp

Download
memory/1996-72-0x0000000002160000-0x0000000002463000-memory.dmp

Filesize
3.0MB

Download
memory/1996-70-0x0000000000A40000-0x0000000000A86000-memory.dmp

Filesize
280KB

Download
memory/1996-71-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1996-68-0x0000000000000000-mapping.dmp

Download
memory/1996-76-0x0000000000920000-0x00000000009B0000-memory.dmp

Filesize
576KB

Download
memory/2028-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2028-65-0x0000000000740000-0x0000000000A43000-memory.dmp

Filesize
3.0MB

Download
memory/2028-66-0x0000000000340000-0x0000000000351000-memory.dmp

Filesize
68KB

Download
memory/2028-63-0x000000000041D090-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads