xloader | 5d4e35e3913b9a46150bcc2ba94e971a643465a143ba91fee659d6827fe828e1

General

Target

$PLUGINSDIR/772vhhojj684oi.dll
Size

5KB
MD5

5e3d3dadd742c63f01034fb9175caef2
SHA1

a3c3cdd8ba24655f36ef248678efe1fade8bc6e8
SHA256

c5e4e3bca252502d2c1b4dd9af51de6f14f495b97965e6f0cb9689ce2501afe1
SHA512

6d19e6f22dd4442baf620111e4370ebe83acde452240dfb171c6492051f9cbede8d1c0a7de538d012e20ef98e07d61ed1e126050a890425f4a868f27a4d66440
SSDEEP

96:EBxUgFl44+MRTXtEm1Rtwz6SJtxuR3kx:E1lRTv1Rtwz6

Score

10^/10

xloader u8nw discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

u8nw

Decoy

constructionjadams.com

organicwellnessfarm.com

beautiful.tours

medvows.com

foxparanormal.com

fsmxmc.com

graniterealestategroup.net

qgi1.com

astrologicsolutions.com

rafbar.com

bastiontools.net

emotist.com

stacyleets.com

bloodtypealpha.com

healtybenenfitsplus.com

vavadadoa3.com

chefbenhk.com

dotgz.com

xn--z4qm188e645c.com

ethyi.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/2360-1-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2360-4-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral3/memory/2360-8-0x0000000000400000-0x0000000000429000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2432 set thread context of 2360	2432	rundll32.exe	31
PID 2360 set thread context of 1204	2360	rundll32.exe	21
PID 2360 set thread context of 1204	2360	rundll32.exe	21

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2840	2152	WerFault.exe	33

System Location Discovery: System Language Discovery 1 TTPs 3 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	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2360	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2432	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	rundll32.exe
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 3036 wrote to memory of 2432	3036	rundll32.exe	30
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2432 wrote to memory of 2360	2432	rundll32.exe	31
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2360 wrote to memory of 2152	2360	rundll32.exe	33
PID 2152 wrote to memory of 2840	2152	msiexec.exe	34
PID 2152 wrote to memory of 2840	2152	msiexec.exe	34
PID 2152 wrote to memory of 2840	2152	msiexec.exe	34
PID 2152 wrote to memory of 2840	2152	msiexec.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1204
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\772vhhojj684oi.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\772vhhojj684oi.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2432
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\772vhhojj684oi.dll,#1
      4⤵
      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:2360
    - - C:\Windows\SysWOW64\msiexec.exe
        
        "C:\Windows\SysWOW64\msiexec.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2152
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 268
        6⤵
        Program crash
        
        PID:2840

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/1204-10-0x0000000004520000-0x00000000045DE000-memory.dmp

Filesize
760KB

Download
memory/1204-18-0x0000000006950000-0x0000000006A72000-memory.dmp

Filesize
1.1MB

Download
memory/1204-6-0x0000000004520000-0x00000000045DE000-memory.dmp

Filesize
760KB

Download
memory/1204-11-0x0000000006950000-0x0000000006A72000-memory.dmp

Filesize
1.1MB

Download
memory/2152-15-0x0000000000AF0000-0x0000000000B04000-memory.dmp

Filesize
80KB

Download
memory/2152-12-0x0000000000AF0000-0x0000000000B04000-memory.dmp

Filesize
80KB

Download
memory/2152-13-0x0000000000AF0000-0x0000000000B04000-memory.dmp

Filesize
80KB

Download
memory/2360-5-0x00000000000E0000-0x00000000000F0000-memory.dmp

Filesize
64KB

Download
memory/2360-9-0x0000000000230000-0x0000000000240000-memory.dmp

Filesize
64KB

Download
memory/2360-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2360-4-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2360-2-0x00000000020B0000-0x00000000023B3000-memory.dmp

Filesize
3.0MB

Download
memory/2360-1-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2432-0-0x0000000000140000-0x0000000000142000-memory.dmp

Filesize
8KB

Download

Analysis

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