xloader | 50df1fc76a41a970a44ac40efdd0113c599a7091891dc13c25e78abe52a97158

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

resource	yara_rule
behavioral2/memory/4104-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4104-17-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3736-22-0x0000000000880000-0x00000000008A9000-memory.dmp	xloader
behavioral2/memory/3736-24-0x0000000000880000-0x00000000008A9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4372 set thread context of 4104	4372	IMG_38575943.exe	102
PID 4104 set thread context of 3420	4104	IMG_38575943.exe	56
PID 3736 set thread context of 3420	3736	cmmon32.exe	56

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
4104	IMG_38575943.exe
4104	IMG_38575943.exe
4104	IMG_38575943.exe
4104	IMG_38575943.exe
4104	IMG_38575943.exe
4104	IMG_38575943.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe
3736	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4104	IMG_38575943.exe
4104	IMG_38575943.exe
4104	IMG_38575943.exe
3736	cmmon32.exe
3736	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4104	IMG_38575943.exe
Token: SeDebugPrivilege	3736	cmmon32.exe
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE
Token: SeShutdownPrivilege	3420	Explorer.EXE
Token: SeCreatePagefilePrivilege	3420	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3420	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 4372 wrote to memory of 4104	4372	IMG_38575943.exe	102
PID 3420 wrote to memory of 3736	3420	Explorer.EXE	103
PID 3420 wrote to memory of 3736	3420	Explorer.EXE	103
PID 3420 wrote to memory of 3736	3420	Explorer.EXE	103
PID 3736 wrote to memory of 716	3736	cmmon32.exe	104
PID 3736 wrote to memory of 716	3736	cmmon32.exe	104
PID 3736 wrote to memory of 716	3736	cmmon32.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe
  "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4372
- - 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:4104
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3736
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IMG_38575943.exe"
    3⤵
    PID:716

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2720

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/3420-19-0x000000000AB00000-0x000000000AC61000-memory.dmp

Filesize
1.4MB

Download
memory/3420-32-0x0000000012120000-0x00000000121FA000-memory.dmp

Filesize
872KB

Download
memory/3420-30-0x0000000012120000-0x00000000121FA000-memory.dmp

Filesize
872KB

Download
memory/3420-28-0x0000000012120000-0x00000000121FA000-memory.dmp

Filesize
872KB

Download
memory/3420-27-0x000000000AB00000-0x000000000AC61000-memory.dmp

Filesize
1.4MB

Download
memory/3736-26-0x00000000027C0000-0x0000000002850000-memory.dmp

Filesize
576KB

Download
memory/3736-24-0x0000000000880000-0x00000000008A9000-memory.dmp

Filesize
164KB

Download
memory/3736-23-0x0000000002930000-0x0000000002C7A000-memory.dmp

Filesize
3.3MB

Download
memory/3736-22-0x0000000000880000-0x00000000008A9000-memory.dmp

Filesize
164KB

Download
memory/3736-21-0x0000000000970000-0x000000000097C000-memory.dmp

Filesize
48KB

Download
memory/3736-20-0x0000000000970000-0x000000000097C000-memory.dmp

Filesize
48KB

Download
memory/4104-15-0x0000000001680000-0x00000000019CA000-memory.dmp

Filesize
3.3MB

Download
memory/4104-17-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4104-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4104-18-0x0000000001470000-0x0000000001481000-memory.dmp

Filesize
68KB

Download
memory/4372-8-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4372-1-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4372-11-0x00000000067D0000-0x000000000682E000-memory.dmp

Filesize
376KB

Download
memory/4372-10-0x0000000006730000-0x00000000067CC000-memory.dmp

Filesize
624KB

Download
memory/4372-9-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/4372-14-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4372-7-0x00000000055B0000-0x00000000055FC000-memory.dmp

Filesize
304KB

Download
memory/4372-6-0x00000000052B0000-0x00000000052BC000-memory.dmp

Filesize
48KB

Download
memory/4372-5-0x0000000005000000-0x000000000500A000-memory.dmp

Filesize
40KB

Download
memory/4372-4-0x00000000052C0000-0x00000000052D0000-memory.dmp

Filesize
64KB

Download
memory/4372-3-0x0000000005060000-0x00000000050F2000-memory.dmp

Filesize
584KB

Download
memory/4372-2-0x0000000005610000-0x0000000005BB4000-memory.dmp

Filesize
5.6MB

Download
memory/4372-0-0x00000000005A0000-0x00000000005FC000-memory.dmp

Filesize
368KB

Download

Analysis

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