xloader | 6187ecd59d9d6c50c32460769a8a16ad8e1051a4c2e12899b2912861be1e823d

General

Target

PO04009540.exe
Size

219KB
MD5

0ff16682f9ece061c742b6610723a1dd
SHA1

ed847d278ed83e3e13079a07a12b8f7a75485174
SHA256

6187ecd59d9d6c50c32460769a8a16ad8e1051a4c2e12899b2912861be1e823d
SHA512

6b9007ffa109fe0b9559a4efac105df7143f34b476ecf7baf1a5b3f473d9841d0a0cb6e6f9ce8d6437811ab73304455595eef5049ca12dd668f808f166611516

Score

10^/10

xloader tn61 loader persistence rat suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1480-59-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1348-69-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/1348-73-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	control.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OP_TQ = "C:\\Program Files (x86)\\Ylrwt8tj0\\igfx_bcplfy.exe"	control.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO04009540.execvtres.execontrol.exe

description	pid	process	target process
PID 316 set thread context of 1480	316	PO04009540.exe	cvtres.exe
PID 1480 set thread context of 1284	1480	cvtres.exe	Explorer.EXE
PID 1348 set thread context of 1284	1348	control.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

control.exe

description ioc process

File opened for modification C:\Program Files (x86)\Ylrwt8tj0\igfx_bcplfy.exe control.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ylrwt8tj0\igfx_bcplfy.exe	control.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

cvtres.execontrol.exe

pid	process
1480	cvtres.exe
1480	cvtres.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe
1348	control.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

cvtres.execontrol.exe

pid process

1480 cvtres.exe
1480 cvtres.exe
1480 cvtres.exe
1348 control.exe
1348 control.exe
1348 control.exe
1348 control.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.execontrol.exe

description pid process

Token: SeDebugPrivilege 1480 cvtres.exe
Token: SeDebugPrivilege 1348 control.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1480	cvtres.exe
Token: SeDebugPrivilege	1348	control.exe

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

PO04009540.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 316 wrote to memory of 1480	316	PO04009540.exe	cvtres.exe
PID 1284 wrote to memory of 1348	1284	Explorer.EXE	control.exe
PID 1284 wrote to memory of 1348	1284	Explorer.EXE	control.exe
PID 1284 wrote to memory of 1348	1284	Explorer.EXE	control.exe
PID 1284 wrote to memory of 1348	1284	Explorer.EXE	control.exe
PID 1348 wrote to memory of 2036	1348	control.exe	cmd.exe
PID 1348 wrote to memory of 2036	1348	control.exe	cmd.exe
PID 1348 wrote to memory of 2036	1348	control.exe	cmd.exe
PID 1348 wrote to memory of 2036	1348	control.exe	cmd.exe
PID 1348 wrote to memory of 1708	1348	control.exe	Firefox.exe
PID 1348 wrote to memory of 1708	1348	control.exe	Firefox.exe
PID 1348 wrote to memory of 1708	1348	control.exe	Firefox.exe
PID 1348 wrote to memory of 1708	1348	control.exe	Firefox.exe
PID 1348 wrote to memory of 1708	1348	control.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Users\Admin\AppData\Local\Temp\PO04009540.exe
  "C:\Users\Admin\AppData\Local\Temp\PO04009540.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1480
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1348
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
    3⤵
    PID:2036
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/316-54-0x0000000001050000-0x000000000108A000-memory.dmp

Filesize
232KB

Download
memory/1284-64-0x0000000004890000-0x0000000004958000-memory.dmp

Filesize
800KB

Download
memory/1284-74-0x0000000004D60000-0x0000000004EC1000-memory.dmp

Filesize
1.4MB

Download
memory/1284-72-0x0000000004D60000-0x0000000004EC1000-memory.dmp

Filesize
1.4MB

Download
memory/1348-68-0x0000000000480000-0x000000000049F000-memory.dmp

Filesize
124KB

Download
memory/1348-70-0x00000000020B0000-0x00000000023B3000-memory.dmp

Filesize
3.0MB

Download
memory/1348-73-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1348-71-0x00000000004A0000-0x0000000000530000-memory.dmp

Filesize
576KB

Download
memory/1348-69-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1348-65-0x0000000000000000-mapping.dmp

Download
memory/1348-66-0x0000000076431000-0x0000000076433000-memory.dmp

Filesize
8KB

Download
memory/1480-58-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-59-0x000000000041F2C0-mapping.dmp

Download
memory/1480-61-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-63-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/1480-55-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1480-62-0x0000000000A50000-0x0000000000D53000-memory.dmp

Filesize
3.0MB

Download
memory/1480-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2036-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads