xloader | 0a01299cae838e8920ce78f846e94890d3a08619316aacfe34f9deb0b364d69c

General

Target

$PLUGINSDIR/fzltxxnfffs.dll
Size

194KB
MD5

c1ee8fc3cb583c07338524ac89801344
SHA1

041872fd3d00b10c7983f641be1e579bb709e6b7
SHA256

2b1efdc452245df048688e006a8d7c103e5ec369cab07125060161752ea6d8b6
SHA512

bd59b363d5c6e01a5f92e17f3c8c86eda4793a7ca53fa062aa80632fdb2130df527991ceb3ac6f73edd09e22a8e71968d0b7ad6e50fb7a7f2f9ed417f82f0190
SSDEEP

6144:ZUtJEr7mQNzZ/vDXqxnfNahvFp1cck4X3rm6v:ZnCYFD6TG9pjni6v

Score

10^/10

xloader pnug discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

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

Signatures

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

Xloader payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral3/memory/1988-2-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/1988-5-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2452-10-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

rundll32.exerundll32.exesvchost.exe

description	pid	Process	procid_target
PID 1044 set thread context of 1988	1044	rundll32.exe	30
PID 1988 set thread context of 1380	1988	rundll32.exe	20
PID 2452 set thread context of 1380	2452	svchost.exe	20

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

Processes:

rundll32.exerundll32.exesvchost.execmd.exe

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	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

rundll32.exesvchost.exe

pid	Process
1988	rundll32.exe
1988	rundll32.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe
2452	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

rundll32.exesvchost.exe

pid	Process
1988	rundll32.exe
1988	rundll32.exe
1988	rundll32.exe
2452	svchost.exe
2452	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

rundll32.exesvchost.exe

description	pid	Process
Token: SeDebugPrivilege	1988	rundll32.exe
Token: SeDebugPrivilege	2452	svchost.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

rundll32.exerundll32.exeExplorer.EXEsvchost.exe

description	pid	Process	procid_target
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1148 wrote to memory of 1044	1148	rundll32.exe	29
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1044 wrote to memory of 1988	1044	rundll32.exe	30
PID 1380 wrote to memory of 2452	1380	Explorer.EXE	31
PID 1380 wrote to memory of 2452	1380	Explorer.EXE	31
PID 1380 wrote to memory of 2452	1380	Explorer.EXE	31
PID 1380 wrote to memory of 2452	1380	Explorer.EXE	31
PID 2452 wrote to memory of 2496	2452	svchost.exe	32
PID 2452 wrote to memory of 2496	2452	svchost.exe	32
PID 2452 wrote to memory of 2496	2452	svchost.exe	32
PID 2452 wrote to memory of 2496	2452	svchost.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\fzltxxnfffs.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1148
- - 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:1044
  - - 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:1988
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.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:2452
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1044-1-0x0000000000130000-0x0000000000170000-memory.dmp

Filesize
256KB

Download
memory/1380-7-0x0000000007300000-0x000000000743B000-memory.dmp

Filesize
1.2MB

Download
memory/1380-11-0x0000000007300000-0x000000000743B000-memory.dmp

Filesize
1.2MB

Download
memory/1988-2-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1988-3-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/1988-6-0x0000000000230000-0x0000000000241000-memory.dmp

Filesize
68KB

Download
memory/1988-5-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2452-9-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

Filesize
32KB

Download
memory/2452-8-0x0000000000CC0000-0x0000000000CC8000-memory.dmp

Filesize
32KB

Download
memory/2452-10-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads