xloader | 930a5b287917b943e46e998d8acc1714217e41f0d04af5b55443c467882f288d

General

Target

grace $.exe
Size

482KB
MD5

beee308b51db0c02f8eeebf7d2773a6d
SHA1

4df5d609ea5b05dfcba4b9e51120a10374f7d450
SHA256

7af335cb2a2646ddadf12f730585a217523da868aaeb12ba621b367c1b942693
SHA512

d0665aa70d1c1116a36c296bc49ec4b474a086d9741d3439f8b0fe4c8f054ae8ab1d5610b4e4e74758c25947054a569e5b897822e2859c8595b00dc69015a63b

Score

10^/10

xloader t75f loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

t75f

C2

http://www.vertexnailsblaine.com/t75f/

Decoy

onegolfsydney.com

kaizensportscoaching.com

mliacbjv.icu

rinstech.net

midas-parts.com

istmenian.com

ibrahimpike.com

herbspaces.com

gentleman4higher.com

workabusiness.com

isabusive.website

222555dy.com

lwhyzhzb.xyz

gabrielabravoillanes.com

hearthomelife.com

buildswealth.com

printitaz.com

l-mventures.com

baincot3.com

nstaq-labs.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
behavioral1/memory/568-58-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/568-59-0x000000000041D110-mapping.dmp	xloader
behavioral1/memory/1040-66-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exe

flow pid process

13 1040 rundll32.exe
43 1040 rundll32.exe

flow	pid	process
13	1040	rundll32.exe
43	1040	rundll32.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

grace $.exeRegSvcs.exerundll32.exe

description	pid	process	target process
PID 1632 set thread context of 568	1632	grace $.exe	RegSvcs.exe
PID 568 set thread context of 1376	568	RegSvcs.exe	Explorer.EXE
PID 1040 set thread context of 1376	1040	rundll32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 53 IoCs

Processes:

grace $.exeRegSvcs.exerundll32.exe

pid	process
1632	grace $.exe
1632	grace $.exe
568	RegSvcs.exe
568	RegSvcs.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe
1040	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exerundll32.exe

pid process

568 RegSvcs.exe
568 RegSvcs.exe
568 RegSvcs.exe
1040 rundll32.exe
1040 rundll32.exe

pid	process
1376	Explorer.EXE

pid	process
568	RegSvcs.exe
568	RegSvcs.exe
568	RegSvcs.exe
1040	rundll32.exe
1040	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

grace $.exeRegSvcs.exerundll32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1632	grace $.exe
Token: SeDebugPrivilege	568	RegSvcs.exe
Token: SeDebugPrivilege	1040	rundll32.exe
Token: SeShutdownPrivilege	1376	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

grace $.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1632 wrote to memory of 568	1632	grace $.exe	RegSvcs.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1376 wrote to memory of 1040	1376	Explorer.EXE	rundll32.exe
PID 1040 wrote to memory of 320	1040	rundll32.exe	cmd.exe
PID 1040 wrote to memory of 320	1040	rundll32.exe	cmd.exe
PID 1040 wrote to memory of 320	1040	rundll32.exe	cmd.exe
PID 1040 wrote to memory of 320	1040	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

C:\Users\Admin\AppData\Local\Temp\grace $.exe
"C:\Users\Admin\AppData\Local\Temp\grace $.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1632

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:568

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:320

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/320-68-0x0000000000000000-mapping.dmp

Download
memory/568-58-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/568-60-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/568-61-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/568-59-0x000000000041D110-mapping.dmp

Download
memory/1040-65-0x00000000005B0000-0x00000000005BE000-memory.dmp

Filesize
56KB

Download
memory/1040-63-0x0000000000000000-mapping.dmp

Download
memory/1040-64-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

Filesize
8KB

Download
memory/1040-67-0x00000000020F0000-0x00000000023F3000-memory.dmp

Filesize
3.0MB

Download
memory/1040-66-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1040-69-0x00000000009E0000-0x0000000000A6F000-memory.dmp

Filesize
572KB

Download
memory/1376-62-0x0000000004B90000-0x0000000004C5A000-memory.dmp

Filesize
808KB

Download
memory/1376-70-0x0000000006520000-0x0000000006697000-memory.dmp

Filesize
1.5MB

Download
memory/1632-57-0x0000000001F60000-0x0000000001F8A000-memory.dmp

Filesize
168KB

Download
memory/1632-56-0x0000000005070000-0x00000000050CF000-memory.dmp

Filesize
380KB

Download
memory/1632-55-0x0000000000520000-0x0000000000536000-memory.dmp

Filesize
88KB

Download
memory/1632-52-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/1632-54-0x0000000004CF0000-0x0000000004CF1000-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