xloader | ac4a0328d512526f20122f0399d557b1334f3b2ac264d9e749d6d2788e956b2e

General

Target

$PLUGINSDIR/skjesair.dll
Size

38KB
MD5

f9099ad46c16a20b52f173f5806426bf
SHA1

b7543e7af6930e16520f41bc0c3e5fdd5f1ce45d
SHA256

e80f972bce5004dfe27ca8a8063f354be8b0b618119db1e706242d28217e02ca
SHA512

6d6c2aec061cdc3e34b7774e1a16971f246b79da659bc8140d0965130a54bf81f57ad50d56314b5b5f551eb1d24e15d2d6131e041665dc3ecb921af3a426cdc1
SSDEEP

768:JbqF9FSKFaJ7arlVhknrYOyW5XX+Jv+1:kLF5Hk3O41

Score

10^/10

xloader epz2 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

epz2

Decoy

moslemco.com

besrbee.com

in-teh.com

fofomej.xyz

partner2form.com

codigocentro.com

thgn29.xyz

behindwp.com

oliviatevents.com

jammineugene.com

colobohieran.quest

freidenfelt.com

ribbitathleticwear.com

dreamlylife.com

hotelcxn.com

preciosaglass.com

lawaves.net

thatsnotmydriveway.com

northportbusinesscenter.com

dayinamman.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral3/memory/1452-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/1452-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2832-11-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2352 set thread context of 1452	2352	rundll32.exe	31
PID 1452 set thread context of 1180	1452	rundll32.exe	21
PID 2832 set thread context of 1180	2832	wlanext.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	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1452	rundll32.exe
1452	rundll32.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe
2832	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1452	rundll32.exe
1452	rundll32.exe
1452	rundll32.exe
2832	wlanext.exe
2832	wlanext.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	rundll32.exe
Token: SeDebugPrivilege	2832	wlanext.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2856 wrote to memory of 2352	2856	rundll32.exe	30
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 2352 wrote to memory of 1452	2352	rundll32.exe	31
PID 1180 wrote to memory of 2832	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2832	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2832	1180	Explorer.EXE	32
PID 1180 wrote to memory of 2832	1180	Explorer.EXE	32
PID 2832 wrote to memory of 3064	2832	wlanext.exe	33
PID 2832 wrote to memory of 3064	2832	wlanext.exe	33
PID 2832 wrote to memory of 3064	2832	wlanext.exe	33
PID 2832 wrote to memory of 3064	2832	wlanext.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2856
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2352
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\skjesair.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:1452
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:2832
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3064

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

Replay Monitor

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Downloads

memory/1180-7-0x0000000006080000-0x00000000061FA000-memory.dmp

Filesize
1.5MB

Download
memory/1180-12-0x0000000006080000-0x00000000061FA000-memory.dmp

Filesize
1.5MB

Download
memory/1452-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1452-2-0x0000000002070000-0x0000000002373000-memory.dmp

Filesize
3.0MB

Download
memory/1452-5-0x0000000000210000-0x0000000000221000-memory.dmp

Filesize
68KB

Download
memory/1452-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2352-0-0x0000000010009000-0x000000001000B000-memory.dmp

Filesize
8KB

Download
memory/2832-10-0x0000000000120000-0x0000000000136000-memory.dmp

Filesize
88KB

Download
memory/2832-8-0x0000000000120000-0x0000000000136000-memory.dmp

Filesize
88KB

Download
memory/2832-11-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download

Analysis

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