xloader | 34040e82cb289b62c022c3e84bb2c3185150e661225aa9f378fb77279c70bb8e

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 20:45

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General

Target

$PLUGINSDIR/tktzsan.dll
Size

20KB
MD5

3d4fc93b0e82d14dc45f93d7c280faa9
SHA1

4e472ee4f91cd88b7fbc66e2d042bd84783dc889
SHA256

4e177339740363323d54016a8b60a135a58d5c1593aa76115acc38e9c7eb10a8
SHA512

1eeac5f1f8e87bab84b1048f25f387cebd74d253501ff54a4352074b907e0759ccaedc476013c65ceac4a5206c13b9db72c6d2b81451d4d694ac0eb5bca33e6d
SSDEEP

384:fON4md7V4mnY1FnF2f/oTOuEjkZX4FkvYxzk7RJQogdGkYJdxzkyzs+5+ka7t3aD:ZmAmniFnF2fASuYkZOkvmzk7RJQogdP

Score

10^/10

xloader r95e discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

r95e

Decoy

mindyourbusinesscoin.com

melandri.club

13011196.com

bespinpoker.com

ohchainpodklo.xyz

paolacapitanio.com

hnczppjs.com

healthygold-carefit.club

drive16pay.art

5foldmastermind.com

especialistasorteios.online

cjcveterotqze.com

originaldigitalspaces.com

21lawsofconfidence.com

uscryptomininglaws.com

nilist.xyz

bergstromgreenholt.icu

dumbasslures.com

companieus.com

2gtfy0.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral4/memory/2692-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/2692-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/2692-8-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral4/memory/2292-14-0x0000000000770000-0x0000000000799000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3224 set thread context of 2692	3224	rundll32.exe	84
PID 2692 set thread context of 3408	2692	rundll32.exe	56
PID 2692 set thread context of 3408	2692	rundll32.exe	56
PID 2292 set thread context of 3408	2292	help.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2740	3224	WerFault.exe	83

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

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe
2292	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3224	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2692	rundll32.exe
2292	help.exe
2292	help.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	rundll32.exe
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeDebugPrivilege	2292	help.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3472 wrote to memory of 3224	3472	rundll32.exe	83
PID 3472 wrote to memory of 3224	3472	rundll32.exe	83
PID 3472 wrote to memory of 3224	3472	rundll32.exe	83
PID 3224 wrote to memory of 2692	3224	rundll32.exe	84
PID 3224 wrote to memory of 2692	3224	rundll32.exe	84
PID 3224 wrote to memory of 2692	3224	rundll32.exe	84
PID 3224 wrote to memory of 2692	3224	rundll32.exe	84
PID 3408 wrote to memory of 2292	3408	Explorer.EXE	96
PID 3408 wrote to memory of 2292	3408	Explorer.EXE	96
PID 3408 wrote to memory of 2292	3408	Explorer.EXE	96
PID 2292 wrote to memory of 5004	2292	help.exe	99
PID 2292 wrote to memory of 5004	2292	help.exe	99
PID 2292 wrote to memory of 5004	2292	help.exe	99

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\tktzsan.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3472
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\tktzsan.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:3224
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\tktzsan.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2692
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3224 -s 732
      4⤵
      Program crash
      PID:2740
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2148
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:2292
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5004

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3224 -ip 3224
1⤵
PID:4032

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

Replay Monitor

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Downloads

memory/2292-13-0x00000000001C0000-0x00000000001C7000-memory.dmp

Filesize
28KB

Download
memory/2292-14-0x0000000000770000-0x0000000000799000-memory.dmp

Filesize
164KB

Download
memory/2292-12-0x00000000001C0000-0x00000000001C7000-memory.dmp

Filesize
28KB

Download
memory/2692-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2692-5-0x0000000000AE0000-0x0000000000AF1000-memory.dmp

Filesize
68KB

Download
memory/2692-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2692-2-0x0000000002890000-0x0000000002BDA000-memory.dmp

Filesize
3.3MB

Download
memory/2692-9-0x0000000000B20000-0x0000000000B31000-memory.dmp

Filesize
68KB

Download
memory/2692-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3224-0-0x0000000075415000-0x0000000075417000-memory.dmp

Filesize
8KB

Download
memory/3408-11-0x0000000009020000-0x00000000091B8000-memory.dmp

Filesize
1.6MB

Download
memory/3408-10-0x0000000007B20000-0x0000000007C7D000-memory.dmp

Filesize
1.4MB

Download
memory/3408-6-0x0000000009020000-0x00000000091B8000-memory.dmp

Filesize
1.6MB

Download
memory/3408-15-0x0000000007B20000-0x0000000007C7D000-memory.dmp

Filesize
1.4MB

Download
memory/3408-18-0x0000000004A40000-0x0000000004B3C000-memory.dmp

Filesize
1008KB

Download
memory/3408-20-0x0000000004A40000-0x0000000004B3C000-memory.dmp

Filesize
1008KB

Download
memory/3408-21-0x0000000004A40000-0x0000000004B3C000-memory.dmp

Filesize
1008KB

Download