xloader | 50df1fc76a41a970a44ac40efdd0113c599a7091891dc13c25e78abe52a97158

Resubmissions

20-04-2024 01:16

240420-bmxf1sdd8s 10

20-04-2024 01:12

240420-bksp2sdc9s 10

Analysis

max time kernel
300s
max time network
301s
platform
windows11-21h2_x64
resource
win11-20240412-en
resource tags

arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
submitted
20-04-2024 01:12

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General

Target

IMG_38575943.exe
Size

341KB
MD5

2a11ef715093c4429cd05dc3950c7f89
SHA1

3199e3c72fc349d9cce951c2c8830d88a8da4454
SHA256

50df1fc76a41a970a44ac40efdd0113c599a7091891dc13c25e78abe52a97158
SHA512

24f2d7a608d421258334144217e97dccdeb023d5e621774f213eda210a8937df0c7d12cfd02e8c96d5951011d6142a320ca3b40bedb8ac6ad5f95ccc6d3d2d0a
SSDEEP

6144:HqPwmYdAbc0C3LFDDOQmjUi0GL9jDAlPMKpPbd6j62AeI4KR0VoFtDFF7g:HqPwmYdAbc0CboQmjIGN6Pzd6j6/eWtU

Score

10^/10

xloader c6si loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c6si

Decoy

tristateinc.construction

americanscaregroundstexas.com

kanimisoshiru.com

wihling.com

fishcheekstosa.com

parentsfuid.com

greenstandmarket.com

fc8fla8kzq.com

gametwist-83.club

jobsncvs.com

directrealtysells.com

avida2015.com

conceptasite.net

arkaneattire.com

indev-mobility.info

2160centurypark412.com

valefloor.com

septembership.com

stackflix.com

jimc0sales.net

Signatures

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

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2468-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2468-17-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/900-23-0x0000000000C60000-0x0000000000C89000-memory.dmp	xloader
behavioral2/memory/900-25-0x0000000000C60000-0x0000000000C89000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

IMG_38575943.exeIMG_38575943.exeexplorer.exe

description	pid	Process	procid_target
PID 3628 set thread context of 2468	3628	IMG_38575943.exe	81
PID 2468 set thread context of 3320	2468	IMG_38575943.exe	52
PID 900 set thread context of 3320	900	explorer.exe	52

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

IMG_38575943.exeIMG_38575943.exeexplorer.exe

pid	Process
3628	IMG_38575943.exe
3628	IMG_38575943.exe
2468	IMG_38575943.exe
2468	IMG_38575943.exe
2468	IMG_38575943.exe
2468	IMG_38575943.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe
900	explorer.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

IMG_38575943.exeexplorer.exe

pid	Process
2468	IMG_38575943.exe
2468	IMG_38575943.exe
2468	IMG_38575943.exe
900	explorer.exe
900	explorer.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

IMG_38575943.exeIMG_38575943.exeexplorer.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	3628	IMG_38575943.exe
Token: SeDebugPrivilege	2468	IMG_38575943.exe
Token: SeDebugPrivilege	900	explorer.exe
Token: SeShutdownPrivilege	3320	Explorer.EXE
Token: SeCreatePagefilePrivilege	3320	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid	Process
3320	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

IMG_38575943.exeExplorer.EXEexplorer.exe

description	pid	Process	procid_target
PID 3628 wrote to memory of 1788	3628	IMG_38575943.exe	80
PID 3628 wrote to memory of 1788	3628	IMG_38575943.exe	80
PID 3628 wrote to memory of 1788	3628	IMG_38575943.exe	80
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3628 wrote to memory of 2468	3628	IMG_38575943.exe	81
PID 3320 wrote to memory of 900	3320	Explorer.EXE	82
PID 3320 wrote to memory of 900	3320	Explorer.EXE	82
PID 3320 wrote to memory of 900	3320	Explorer.EXE	82
PID 900 wrote to memory of 1384	900	explorer.exe	83
PID 900 wrote to memory of 1384	900	explorer.exe	83
PID 900 wrote to memory of 1384	900	explorer.exe	83

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
  "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3628
- - C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    PID:1788
- - C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2468
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:900
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    PID:1384

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/900-20-0x0000000000E30000-0x000000000125C000-memory.dmp

Filesize
4.2MB

Download
memory/900-27-0x0000000002FB0000-0x0000000003040000-memory.dmp

Filesize
576KB

Download
memory/900-25-0x0000000000C60000-0x0000000000C89000-memory.dmp

Filesize
164KB

Download
memory/900-24-0x0000000003290000-0x00000000035E6000-memory.dmp

Filesize
3.3MB

Download
memory/900-23-0x0000000000C60000-0x0000000000C89000-memory.dmp

Filesize
164KB

Download
memory/900-22-0x0000000000E30000-0x000000000125C000-memory.dmp

Filesize
4.2MB

Download
memory/2468-15-0x00000000014F0000-0x0000000001846000-memory.dmp

Filesize
3.3MB

Download
memory/2468-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2468-18-0x0000000001380000-0x0000000001391000-memory.dmp

Filesize
68KB

Download
memory/2468-17-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3320-19-0x00000000062C0000-0x00000000063FD000-memory.dmp

Filesize
1.2MB

Download
memory/3320-28-0x00000000062C0000-0x00000000063FD000-memory.dmp

Filesize
1.2MB

Download
memory/3320-35-0x0000000006940000-0x0000000006A5C000-memory.dmp

Filesize
1.1MB

Download
memory/3320-32-0x0000000006940000-0x0000000006A5C000-memory.dmp

Filesize
1.1MB

Download
memory/3320-31-0x0000000006940000-0x0000000006A5C000-memory.dmp

Filesize
1.1MB

Download
memory/3628-5-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

Filesize
40KB

Download
memory/3628-8-0x0000000074710000-0x0000000074EC1000-memory.dmp

Filesize
7.7MB

Download
memory/3628-7-0x0000000006D40000-0x0000000006D8C000-memory.dmp

Filesize
304KB

Download
memory/3628-6-0x00000000060D0000-0x00000000060DC000-memory.dmp

Filesize
48KB

Download
memory/3628-11-0x00000000072F0000-0x000000000734E000-memory.dmp

Filesize
376KB

Download
memory/3628-4-0x0000000005CE0000-0x0000000005CF0000-memory.dmp

Filesize
64KB

Download
memory/3628-3-0x0000000005B30000-0x0000000005BC2000-memory.dmp

Filesize
584KB

Download
memory/3628-2-0x00000000060E0000-0x0000000006686000-memory.dmp

Filesize
5.6MB

Download
memory/3628-1-0x0000000074710000-0x0000000074EC1000-memory.dmp

Filesize
7.7MB

Download
memory/3628-9-0x0000000005CE0000-0x0000000005CF0000-memory.dmp

Filesize
64KB

Download
memory/3628-0-0x0000000000FE0000-0x000000000103C000-memory.dmp

Filesize
368KB

Download
memory/3628-14-0x0000000074710000-0x0000000074EC1000-memory.dmp

Filesize
7.7MB

Download
memory/3628-10-0x00000000071A0000-0x000000000723C000-memory.dmp

Filesize
624KB

Download