xloader | 7384a61fc69ce24610f7c4658c2ef8786c4cdc5d6ad6b33d1a9f506d6b6388d3

Analysis

max time kernel
150s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
14-04-2024 22:55

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General

Target

$PLUGINSDIR/rzvd.dll
Size

27KB
MD5

d255169c5e130e0104b01f2ceb04c885
SHA1

e9a0bf4c711f63829fb077b75b57a14b6bdda4bc
SHA256

66c07a5eb743d77deff8b16a8cbcc1be0795df5197874f23fd440fbf0cae38a8
SHA512

15f54c5f3de381c4b935886bd120d1e4ab609109015b6b49b842aa34b465467706ac79e0b8ad0961046e841e8e352df2a12b70653c960115e6ff92c4b282605e
SSDEEP

768:GoFuDrc9RGl9YRFbDkAkXa37bcM0qOuB1JzTMv:hErUGlYr0a8M0SdY

Score

10^/10

xloader ons6 loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

ons6

Decoy

946acc.net

ilkermulla.com

edificationhub.com

aptbaby.com

luisrgonzalez.com

postandpine.com

objective-object.com

storeydrive.rentals

mobile-find.com

africanbridaluk.com

zzjn12.xyz

ritechoiceinvestmentgroup.com

zitzies.xyz

trulyproofreading.com

ktndetermine.xyz

advertising.land

keywordgomuwk.xyz

niecliomusicspirit.com

lhortelecom.com

cryptochieftan.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral4/memory/4896-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/4896-5-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/4644-10-0x00000000003A0000-0x00000000003C9000-memory.dmp	xloader
behavioral4/memory/4644-12-0x00000000003A0000-0x00000000003C9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 4896	1424	rundll32.exe	86
PID 4896 set thread context of 3344	4896	rundll32.exe	56
PID 4644 set thread context of 3344	4644	control.exe	56

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe
4644	control.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4896	rundll32.exe
4896	rundll32.exe
4896	rundll32.exe
4644	control.exe
4644	control.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4896	rundll32.exe
Token: SeDebugPrivilege	4644	control.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 1424	2364	rundll32.exe	83
PID 2364 wrote to memory of 1424	2364	rundll32.exe	83
PID 2364 wrote to memory of 1424	2364	rundll32.exe	83
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 1424 wrote to memory of 4896	1424	rundll32.exe	86
PID 3344 wrote to memory of 4644	3344	Explorer.EXE	95
PID 3344 wrote to memory of 4644	3344	Explorer.EXE	95
PID 3344 wrote to memory of 4644	3344	Explorer.EXE	95
PID 4644 wrote to memory of 1712	4644	control.exe	96
PID 4644 wrote to memory of 1712	4644	control.exe	96
PID 4644 wrote to memory of 1712	4644	control.exe	96

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\rzvd.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\rzvd.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1424
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\rzvd.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4896
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1036
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:988
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:428
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2112
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2024
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1604
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3624
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4644
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    PID:1712

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1424-0-0x0000000074E30000-0x0000000074E3A000-memory.dmp

Filesize
40KB

Download
memory/1424-2-0x0000000074E30000-0x0000000074E3A000-memory.dmp

Filesize
40KB

Download
memory/3344-22-0x00000000025A0000-0x00000000026D9000-memory.dmp

Filesize
1.2MB

Download
memory/3344-19-0x00000000025A0000-0x00000000026D9000-memory.dmp

Filesize
1.2MB

Download
memory/3344-18-0x00000000025A0000-0x00000000026D9000-memory.dmp

Filesize
1.2MB

Download
memory/3344-15-0x0000000008530000-0x00000000086C4000-memory.dmp

Filesize
1.6MB

Download
memory/3344-7-0x0000000008530000-0x00000000086C4000-memory.dmp

Filesize
1.6MB

Download
memory/4644-14-0x0000000002330000-0x00000000023C0000-memory.dmp

Filesize
576KB

Download
memory/4644-9-0x00000000004C0000-0x00000000004E7000-memory.dmp

Filesize
156KB

Download
memory/4644-10-0x00000000003A0000-0x00000000003C9000-memory.dmp

Filesize
164KB

Download
memory/4644-11-0x0000000002590000-0x00000000028DA000-memory.dmp

Filesize
3.3MB

Download
memory/4644-12-0x00000000003A0000-0x00000000003C9000-memory.dmp

Filesize
164KB

Download
memory/4644-8-0x00000000004C0000-0x00000000004E7000-memory.dmp

Filesize
156KB

Download
memory/4896-5-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4896-6-0x00000000012D0000-0x00000000012E1000-memory.dmp

Filesize
68KB

Download
memory/4896-3-0x0000000002E60000-0x00000000031AA000-memory.dmp

Filesize
3.3MB

Download
memory/4896-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download