xloader | d4c1a546f7e87b1a6506bb846a2b1c96307afd8a8a184b6941a42ea9e53a4718

General

Target

nAIj8iSBKtENT6y.exe
Size

411KB
MD5

799febf0e89864960c7f98b546cea32c
SHA1

2a16ca50e68593db49450672e54ec8a977239a02
SHA256

39c5b29df15e13a18cbc4b77a44208aa927af8851555a4d220d8af0be7aeb235
SHA512

f6f89a2c4c36b4ca961934cb55eec8dbedf15d1a05d77387d9259ddc436766b248865e83e70341c1403dff325185e0a0f4cf51021e682adef19080a7cad6129a

Score

10^/10

xloader t75f loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

t75f

C2

http://www.438451.com/t75f/

Decoy

ice-lemon.pro

ar3spro.cloud

9055837.com

fucksociety.net

prettyofficialx.com

mfxw.xyz

relationshipquiz.info

customia.xyz

juanayjuan.com

zidiankj.com

facture-booking.com

secondmining.store

aboutyou.club

gongxichen.com

laurabraincreative.com

pierrot-bros.com

saintpaulaccountingservices.com

dom-maya.com

garderobamarzen.net

la-salamandre-assurances.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
behavioral2/memory/2260-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2260-126-0x000000000041D410-mapping.dmp	xloader
behavioral2/memory/2260-128-0x0000000000BB0000-0x0000000000C5E000-memory.dmp	xloader
behavioral2/memory/2276-133-0x00000000009C0000-0x00000000009E9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.execmstp.exe

description	pid	process	target process
PID 3340 set thread context of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 2260 set thread context of 2996	2260	RegSvcs.exe	Explorer.EXE
PID 2276 set thread context of 2996	2276	cmstp.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.execmstp.exe

pid	process
3340	nAIj8iSBKtENT6y.exe
3340	nAIj8iSBKtENT6y.exe
2260	RegSvcs.exe
2260	RegSvcs.exe
2260	RegSvcs.exe
2260	RegSvcs.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe
2276	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2996 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.execmstp.exe

pid process

2260 RegSvcs.exe
2260 RegSvcs.exe
2260 RegSvcs.exe
2276 cmstp.exe
2276 cmstp.exe

pid	process
2260	RegSvcs.exe
2260	RegSvcs.exe
2260	RegSvcs.exe
2276	cmstp.exe
2276	cmstp.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3340	nAIj8iSBKtENT6y.exe
Token: SeDebugPrivilege	2260	RegSvcs.exe
Token: SeDebugPrivilege	2276	cmstp.exe
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE
Token: SeShutdownPrivilege	2996	Explorer.EXE
Token: SeCreatePagefilePrivilege	2996	Explorer.EXE

Suspicious use of FindShellTrayWindow 9 IoCs

Processes:

Explorer.EXE

pid	process
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE
2996	Explorer.EXE

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Explorer.EXE

pid process

2996 Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

nAIj8iSBKtENT6y.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3340 wrote to memory of 2260	3340	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 2996 wrote to memory of 2276	2996	Explorer.EXE	cmstp.exe
PID 2996 wrote to memory of 2276	2996	Explorer.EXE	cmstp.exe
PID 2996 wrote to memory of 2276	2996	Explorer.EXE	cmstp.exe
PID 2276 wrote to memory of 2668	2276	cmstp.exe	cmd.exe
PID 2276 wrote to memory of 2668	2276	cmstp.exe	cmd.exe
PID 2276 wrote to memory of 2668	2276	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2996

C:\Users\Admin\AppData\Local\Temp\nAIj8iSBKtENT6y.exe
"C:\Users\Admin\AppData\Local\Temp\nAIj8iSBKtENT6y.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3340

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2260

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2276

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2668

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2260-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2260-128-0x0000000000BB0000-0x0000000000C5E000-memory.dmp

Filesize
696KB

Download
memory/2260-127-0x0000000001160000-0x0000000001480000-memory.dmp

Filesize
3.1MB

Download
memory/2260-126-0x000000000041D410-mapping.dmp

Download
memory/2276-131-0x00000000011D0000-0x00000000011E6000-memory.dmp

Filesize
88KB

Download
memory/2276-130-0x0000000000000000-mapping.dmp

Download
memory/2276-135-0x0000000004990000-0x0000000004A20000-memory.dmp

Filesize
576KB

Download
memory/2276-133-0x00000000009C0000-0x00000000009E9000-memory.dmp

Filesize
164KB

Download
memory/2276-132-0x0000000004B40000-0x0000000004E60000-memory.dmp

Filesize
3.1MB

Download
memory/2668-134-0x0000000000000000-mapping.dmp

Download
memory/2996-129-0x0000000004F70000-0x00000000050F7000-memory.dmp

Filesize
1.5MB

Download
memory/2996-136-0x0000000002730000-0x0000000002893000-memory.dmp

Filesize
1.4MB

Download
memory/3340-118-0x0000000005500000-0x0000000005501000-memory.dmp

Filesize
4KB

Download
memory/3340-117-0x0000000005A00000-0x0000000005A01000-memory.dmp

Filesize
4KB

Download
memory/3340-121-0x00000000059D0000-0x00000000059D7000-memory.dmp

Filesize
28KB

Download
memory/3340-119-0x00000000054E0000-0x00000000054E1000-memory.dmp

Filesize
4KB

Download
memory/3340-115-0x0000000000C40000-0x0000000000C41000-memory.dmp

Filesize
4KB

Download
memory/3340-120-0x0000000005500000-0x00000000059FE000-memory.dmp

Filesize
5.0MB

Download
memory/3340-124-0x000000000CA70000-0x000000000CA9B000-memory.dmp

Filesize
172KB

Download
memory/3340-123-0x000000000A1D0000-0x000000000A230000-memory.dmp

Filesize
384KB

Download
memory/3340-122-0x0000000009CA0000-0x0000000009CA1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads