xloader | 9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf

General

Target

so.exe
Size

650KB
MD5

5551346aa9f251895021b95a2a7cc390
SHA1

acbcecf7599d3c33f6f2a36c0947cfc633d0a406
SHA256

9e189d8d48a66d2f53c972275642da7cbc8ad51b20f04cf1d592bef360db50cf
SHA512

35e43a0f2ef1dd2dfaf921d8af3a4f3ef0f4675479d496141358561c84a3b8c8b1a5bd9497fe6c26757d3e6637edab538ac587d73bc6d47e9b90b751abf55ba3

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.cats16.com/8u3b/

Decoy

pipienta.com

wisdomfest.net

jenniferreich.com

bigcanoehomesforless.com

kayandbernard.com

offerbuildingsecrets.com

benleefoto.com

contactlesssoftware.tech

statenislandplumbing.info

lifestylemedicineservices.com

blazerplanning.com

fnatic-skins.club

effectivemarketinginc.com

babyshopit.com

2000deal.com

k12paymentcemter.com

spwakd.com

lesreponses.com

abundando.com

hawkspremierfhc.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/432-67-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/432-68-0x000000000041D0A0-mapping.dmp	xloader
behavioral1/memory/1332-76-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

384 cmd.exe

pid	process
384	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

so.exeso.execmstp.exe

description	pid	process	target process
PID 1088 set thread context of 432	1088	so.exe	so.exe
PID 432 set thread context of 1248	432	so.exe	Explorer.EXE
PID 1332 set thread context of 1248	1332	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

so.execmstp.exe

pid process

432 so.exe
432 so.exe
1332 cmstp.exe
1332 cmstp.exe
1332 cmstp.exe
1332 cmstp.exe
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

so.execmstp.exe

pid process

432 so.exe
432 so.exe
432 so.exe
1332 cmstp.exe
1332 cmstp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

so.execmstp.exe

description pid process

Token: SeDebugPrivilege 432 so.exe
Token: SeDebugPrivilege 1332 cmstp.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

so.exe

pid process

1088 so.exe
1088 so.exe

pid	process
432	so.exe
432	so.exe
1332	cmstp.exe
1332	cmstp.exe
1332	cmstp.exe
1332	cmstp.exe

pid	process
432	so.exe
432	so.exe
432	so.exe
1332	cmstp.exe
1332	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	432	so.exe
Token: SeDebugPrivilege	1332	cmstp.exe

pid	process
1088	so.exe
1088	so.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

so.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1088 wrote to memory of 432	1088	so.exe	so.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1248 wrote to memory of 1332	1248	Explorer.EXE	cmstp.exe
PID 1332 wrote to memory of 384	1332	cmstp.exe	cmd.exe
PID 1332 wrote to memory of 384	1332	cmstp.exe	cmd.exe
PID 1332 wrote to memory of 384	1332	cmstp.exe	cmd.exe
PID 1332 wrote to memory of 384	1332	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\so.exe
  "C:\Users\Admin\AppData\Local\Temp\so.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1088
- - C:\Users\Admin\AppData\Local\Temp\so.exe
    "C:\Users\Admin\AppData\Local\Temp\so.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:432
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1332
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\so.exe"
    3⤵
    - Deletes itself
    PID:384

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/384-78-0x0000000000000000-mapping.dmp

Download
memory/432-67-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/432-68-0x000000000041D0A0-mapping.dmp

Download
memory/432-70-0x0000000000C90000-0x0000000000F93000-memory.dmp

Filesize
3.0MB

Download
memory/432-71-0x0000000000280000-0x0000000000291000-memory.dmp

Filesize
68KB

Download
memory/1088-61-0x0000000004C00000-0x0000000004C01000-memory.dmp

Filesize
4KB

Download
memory/1088-62-0x0000000004C01000-0x0000000004C02000-memory.dmp

Filesize
4KB

Download
memory/1088-63-0x0000000004C02000-0x0000000004C03000-memory.dmp

Filesize
4KB

Download
memory/1088-64-0x0000000000710000-0x000000000071E000-memory.dmp

Filesize
56KB

Download
memory/1088-65-0x00000000052E0000-0x0000000005358000-memory.dmp

Filesize
480KB

Download
memory/1088-66-0x0000000004760000-0x0000000004790000-memory.dmp

Filesize
192KB

Download
memory/1088-59-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download
memory/1248-72-0x0000000004190000-0x0000000004277000-memory.dmp

Filesize
924KB

Download
memory/1248-80-0x0000000003BF0000-0x0000000003CB6000-memory.dmp

Filesize
792KB

Download
memory/1332-74-0x0000000075281000-0x0000000075283000-memory.dmp

Filesize
8KB

Download
memory/1332-75-0x0000000000CD0000-0x0000000000CE8000-memory.dmp

Filesize
96KB

Download
memory/1332-76-0x00000000000D0000-0x00000000000F9000-memory.dmp

Filesize
164KB

Download
memory/1332-77-0x00000000020F0000-0x00000000023F3000-memory.dmp

Filesize
3.0MB

Download
memory/1332-73-0x0000000000000000-mapping.dmp

Download
memory/1332-79-0x0000000000950000-0x00000000009E0000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads