xloader | aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220331-en
submitted
13/04/2022, 13:27

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General

Target

triage_dropped_file.exe
Size

271KB
MD5

f9a20cce97d6efd9e8d071420a8858b7
SHA1

17680094e9bdefe2f5205729f2b55be2ffca81fa
SHA256

aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d
SHA512

fb9055d9f19788e0c2d25f3f400165b630ef6f62604d6ee6a764c7a57f5f115737db4187be30641bca16af11d84d3afdde73b0790f5d43f682e10439ed7a1026

Score

10^/10

xloader p00n loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

p00n

Decoy

beaniemart.com

sugarlaces.online

kinesio-leman.com

gasfreenft.com

ateneaespai.com

askyourhr.com

recruitloft.com

carolinasbestroofingcompany.com

coacher.online

freshmind.today

help-it.online

nicelink17.com

islandtimeoperations.com

agricurve.net

rizkhr.com

innovatorsincommerce.com

grownwings.com

learningout.store

miaglam.com

tengfeijd8.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 2 IoCs

rat

resource	yara_rule
behavioral2/memory/1800-130-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4568-140-0x0000000000930000-0x0000000000959000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

pid	Process
1804	vvywdeos.exe
1800	vvywdeos.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1804 set thread context of 1800	1804	vvywdeos.exe	84
PID 1800 set thread context of 3040	1800	vvywdeos.exe	26
PID 4568 set thread context of 3040	4568	wscript.exe	26

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1800	vvywdeos.exe
1800	vvywdeos.exe
1800	vvywdeos.exe
1800	vvywdeos.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe
4568	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3040	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1800	vvywdeos.exe
1800	vvywdeos.exe
1800	vvywdeos.exe
4568	wscript.exe
4568	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1800	vvywdeos.exe
Token: SeDebugPrivilege	4568	wscript.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 1804	3740	triage_dropped_file.exe	82
PID 3740 wrote to memory of 1804	3740	triage_dropped_file.exe	82
PID 3740 wrote to memory of 1804	3740	triage_dropped_file.exe	82
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 1804 wrote to memory of 1800	1804	vvywdeos.exe	84
PID 3040 wrote to memory of 4568	3040	Explorer.EXE	85
PID 3040 wrote to memory of 4568	3040	Explorer.EXE	85
PID 3040 wrote to memory of 4568	3040	Explorer.EXE	85
PID 4568 wrote to memory of 860	4568	wscript.exe	86
PID 4568 wrote to memory of 860	4568	wscript.exe	86
PID 4568 wrote to memory of 860	4568	wscript.exe	86

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe
  "C:\Users\Admin\AppData\Local\Temp\triage_dropped_file.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3740
- - C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe
    C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe C:\Users\Admin\AppData\Local\Temp\pkjant
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1804
  - - C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe
      C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe C:\Users\Admin\AppData\Local\Temp\pkjant
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1800
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4568
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe"
    3⤵
    PID:860

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\45s2zanww2v1sy0

Filesize
213KB

MD5
024f5eb96b56308cfb64fe436e8de447

SHA1
307585696be6985d5b7a3289dd4845f534868483

SHA256
926d2ab16139435d5fda9b2badafb9d5eefb606faf59cd1c7b44a282a22feefb

SHA512
e9754c234a15449ccc1e0d2f72c6a7cc63ef4887c2a5c8a93ab83905e42f3d85e77a1efe6b3e032e8b7d531a722c3b7da62349faf7921539947dd8e117bc650d

Download Submit
C:\Users\Admin\AppData\Local\Temp\pkjant

Filesize
4KB

MD5
35ba5cfdc4921d469e0f0959c2827785

SHA1
7295bd83ae1c581099495ec9d8fd9f9b62a97657

SHA256
c3a8511a37564f699ee8c9ec8340f73790bf81e55f3327f4d787b13dc333e013

SHA512
28be15b241179899df176541c469d49cd555e73871ee515bd2d931370fe416b8ad9b3464cfcb741156af126bcc1cdb9f5b5320671c16ffb1a25876d14952d4dd

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
memory/1800-135-0x0000000001360000-0x0000000001371000-memory.dmp

Filesize
68KB

Download
memory/1800-130-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1800-133-0x00000000016E0000-0x0000000001A2A000-memory.dmp

Filesize
3.3MB

Download
memory/1804-132-0x0000000000A00000-0x0000000000A04000-memory.dmp

Filesize
16KB

Download
memory/3040-136-0x00000000085C0000-0x0000000008703000-memory.dmp

Filesize
1.3MB

Download
memory/3040-143-0x00000000031E0000-0x000000000327B000-memory.dmp

Filesize
620KB

Download
memory/4568-140-0x0000000000930000-0x0000000000959000-memory.dmp

Filesize
164KB

Download
memory/4568-141-0x0000000002A40000-0x0000000002D8A000-memory.dmp

Filesize
3.3MB

Download
memory/4568-139-0x0000000000EC0000-0x0000000000EE7000-memory.dmp

Filesize
156KB

Download
memory/4568-142-0x0000000002870000-0x0000000002900000-memory.dmp

Filesize
576KB

Download