xloader | 0a01299cae838e8920ce78f846e94890d3a08619316aacfe34f9deb0b364d69c

Analysis

max time kernel
145s
max time network
120s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
21/08/2024, 01:03

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General

Target
$PLUGINSDIR/fzltxxnfffs.dll
Size 194KB
Sample240821-bevbpasdqb
SHA256 2b1efdc452245df048688e006a8d7c103e5ec369cab07125060161752ea6d8b6
MD5 c1ee8fc3cb583c07338524ac89801344
SHA1 041872fd3d00b10c7983f641be1e579bb709e6b7
SHA512 bd59b363d5c6e01a5f92e17f3c8c86eda4793a7ca53fa062aa80632fdb2130df527991ceb3ac6f73edd09e22a8e71968d0b7ad6e50fb7a7f2f9ed417f82f0190
SSDEEP 6144:ZUtJEr7mQNzZ/vDXqxnfNahvFp1cck4X3rm6v:ZnCYFD6TG9pjni6v
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xloader pnug discovery loader rat

Malware Config

Extracted

Family

xloader

Version

Campaign

pnug

Decoy

natureate.com
ita-pots.website
sucohansmushroom.com
produrielrosen.com
gosystemupdatenow.online
jiskra.art
janwiench.com
norfolkfoodhall.com
iloveaddictss.com
pogozip.com
buyinstapva.com
teardirectionfreedom.xyz
0205168.com
apaixonadosporpugs.online
jawscoinc.com
crafter.quest
wikipedianow.com
radiopuls.net
kendama-co.com
goodstudycanada.com
huzhoucs.com
asinment.com
fuchsundrudolph.com
arthurenathalia.com
globalcosmeticsstudios.com
brandrackley.com
freemanhub.one
utserver.online
fullspecter.com
wshowcase.com
airjordanshoes-retro.com
linguimatics.com
app-verlengen.icu
singpost.red
j4.claims
inoteapp.net
jrdautomotivellc.com
xn--beaupre-6xa.com
mypolicyportal.net
wdgjdhpg.com
anshulindla.com
m981070.com
vertentebike.com
claim-available.com
buyfudgybombs.com
adfnapoli.com
blackfuid.com
clambakedelivered.info
marketingworksonhold.com
xvyj.top
richardsonsfinest.com
gurimix.com
dorhop.com
mauigrowngreencoffee.net
juzytuu.xyz
pokorny.industries
floridapermitsolutions.com
right-on-target-store.com
ynaire.com
nextpar.com
disdrone.com
fruitfulvinebirth.com
africanfairytale.com
leisuresabah.com
safetyeats.asia

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral3/memory/2528-2-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2528-5-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2060-10-0x00000000000D0000-0x00000000000F9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 2528	1916	rundll32.exe	31
PID 2528 set thread context of 1212	2528	rundll32.exe	21
PID 2060 set thread context of 1212	2060	cmstp.exe	21

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2528	rundll32.exe
2528	rundll32.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe
2060	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2528	rundll32.exe
2528	rundll32.exe
2528	rundll32.exe
2060	cmstp.exe
2060	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	rundll32.exe
Token: SeDebugPrivilege	2060	cmstp.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 2972 wrote to memory of 1916	2972	rundll32.exe	30
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1916 wrote to memory of 2528	1916	rundll32.exe	31
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 1212 wrote to memory of 2060	1212	Explorer.EXE	32
PID 2060 wrote to memory of 2164	2060	cmstp.exe	33
PID 2060 wrote to memory of 2164	2060	cmstp.exe	33
PID 2060 wrote to memory of 2164	2060	cmstp.exe	33
PID 2060 wrote to memory of 2164	2060	cmstp.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1916
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2528
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1212-7-0x00000000051A0000-0x00000000052F7000-memory.dmp

Download

memory/1212-11-0x00000000051A0000-0x00000000052F7000-memory.dmp

Download

memory/1916-1-0x00000000000F0000-0x0000000000130000-memory.dmp

Download

memory/2060-9-0x0000000000F10000-0x0000000000F28000-memory.dmp

Download

memory/2060-8-0x0000000000F10000-0x0000000000F28000-memory.dmp

Download

memory/2060-10-0x00000000000D0000-0x00000000000F9000-memory.dmp

Download

memory/2528-2-0x0000000000400000-0x0000000000429000-memory.dmp

Download

memory/2528-3-0x0000000001F30000-0x0000000002233000-memory.dmp

Download

memory/2528-6-0x00000000001C0000-0x00000000001D1000-memory.dmp

Download

memory/2528-5-0x0000000000400000-0x0000000000429000-memory.dmp

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