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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/348-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/348-125-0x000000000041D410-mapping.dmp	xloader
behavioral2/memory/1084-131-0x00000000003B0000-0x00000000003D9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.exemstsc.exe

description	pid	process	target process
PID 3128 set thread context of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 348 set thread context of 3016	348	RegSvcs.exe	Explorer.EXE
PID 1084 set thread context of 3016	1084	mstsc.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-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.exemstsc.exe

pid	process
3128	nAIj8iSBKtENT6y.exe
3128	nAIj8iSBKtENT6y.exe
348	RegSvcs.exe
348	RegSvcs.exe
348	RegSvcs.exe
348	RegSvcs.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3016 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exemstsc.exe

pid process

348 RegSvcs.exe
348 RegSvcs.exe
348 RegSvcs.exe
1084 mstsc.exe
1084 mstsc.exe

pid	process
348	RegSvcs.exe
348	RegSvcs.exe
348	RegSvcs.exe
1084	mstsc.exe
1084	mstsc.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

nAIj8iSBKtENT6y.exeRegSvcs.exeExplorer.EXEmstsc.exe

description	pid	process
Token: SeDebugPrivilege	3128	nAIj8iSBKtENT6y.exe
Token: SeDebugPrivilege	348	RegSvcs.exe
Token: SeShutdownPrivilege	3016	Explorer.EXE
Token: SeCreatePagefilePrivilege	3016	Explorer.EXE
Token: SeShutdownPrivilege	3016	Explorer.EXE
Token: SeCreatePagefilePrivilege	3016	Explorer.EXE
Token: SeShutdownPrivilege	3016	Explorer.EXE
Token: SeCreatePagefilePrivilege	3016	Explorer.EXE
Token: SeShutdownPrivilege	3016	Explorer.EXE
Token: SeCreatePagefilePrivilege	3016	Explorer.EXE
Token: SeDebugPrivilege	1084	mstsc.exe

Suspicious use of FindShellTrayWindow 10 IoCs

Processes:

Explorer.EXE

pid	process
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE
3016	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

3016 Explorer.EXE
3016 Explorer.EXE
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3016 Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

nAIj8iSBKtENT6y.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3128 wrote to memory of 348	3128	nAIj8iSBKtENT6y.exe	RegSvcs.exe
PID 3016 wrote to memory of 1084	3016	Explorer.EXE	mstsc.exe
PID 3016 wrote to memory of 1084	3016	Explorer.EXE	mstsc.exe
PID 3016 wrote to memory of 1084	3016	Explorer.EXE	mstsc.exe
PID 1084 wrote to memory of 2516	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 2516	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 2516	1084	mstsc.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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3016

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:3128

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:348

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1084

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2516

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/348-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/348-127-0x0000000001150000-0x0000000001161000-memory.dmp

Filesize
68KB

Download
memory/348-126-0x0000000001230000-0x0000000001550000-memory.dmp

Filesize
3.1MB

Download
memory/348-125-0x000000000041D410-mapping.dmp

Download
memory/1084-130-0x0000000000C40000-0x0000000000F3C000-memory.dmp

Filesize
3.0MB

Download
memory/1084-129-0x0000000000000000-mapping.dmp

Download
memory/1084-134-0x0000000004640000-0x00000000046D0000-memory.dmp

Filesize
576KB

Download
memory/1084-133-0x0000000004880000-0x0000000004BA0000-memory.dmp

Filesize
3.1MB

Download
memory/1084-131-0x00000000003B0000-0x00000000003D9000-memory.dmp

Filesize
164KB

Download
memory/2516-132-0x0000000000000000-mapping.dmp

Download
memory/3016-128-0x0000000006AA0000-0x0000000006BE0000-memory.dmp

Filesize
1.2MB

Download
memory/3016-135-0x0000000005840000-0x000000000598D000-memory.dmp

Filesize
1.3MB

Download
memory/3128-117-0x0000000004D60000-0x0000000004D61000-memory.dmp

Filesize
4KB

Download
memory/3128-116-0x00000000051C0000-0x00000000051C1000-memory.dmp

Filesize
4KB

Download
memory/3128-120-0x0000000009440000-0x0000000009447000-memory.dmp

Filesize
28KB

Download
memory/3128-118-0x0000000004CC0000-0x00000000051BE000-memory.dmp

Filesize
5.0MB

Download
memory/3128-114-0x0000000000370000-0x0000000000371000-memory.dmp

Filesize
4KB

Download
memory/3128-119-0x0000000004E00000-0x0000000004E01000-memory.dmp

Filesize
4KB

Download
memory/3128-123-0x000000000C300000-0x000000000C32B000-memory.dmp

Filesize
172KB

Download
memory/3128-122-0x0000000009A30000-0x0000000009A90000-memory.dmp

Filesize
384KB

Download
memory/3128-121-0x0000000009500000-0x0000000009501000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads