xloader | 11f36b79a24c88bf46a99ebb86d5bdfb62c5ea4105c79f5b0f25f5bedbe6e8a2

General

Target

$PLUGINSDIR/cvve2p5h0gqmdd.dll
Size

4KB
MD5

7dca75191f506b4a9dac4683211aafc0
SHA1

c31b50e4d74aae90730d308d70e166c6c031ec54
SHA256

28b2482383978cb373546a80213c9c6d03e4af09f2399e5b8d115811f822200e
SHA512

382d43c225cc815a796be1a66f111dd396ce8921fb424d92987cd3055850272f597d5eee4d84ae1b888577833e134b296934a37a26c882d04f520462d99aaa74
SSDEEP

48:vpgHXJOhn3sj3EprS5qD3T3/OsV2OLuZKQi3eYmRbS:BsM3sj3ArS5qDjvV2wuZdi3eVR

Score

10^/10

xloader pnqr discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

pnqr

Decoy

bullexch9.com

hiiidesigns.com

yosapark-gakuenmae.com

movementinspires.com

orlandas.com

flowga.world

opende.info

jiconic.com

selviclothingco.com

herbalmedicineresearch.com

contex33.xyz

riord.com

alchemistslibrary.com

ecalyte.com

tutu119.com

61ue00.com

properwayllc.com

tamitoe.com

adacompliantsoftware.com

deliabe.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/3032-1-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral3/memory/3032-4-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral3/memory/1708-10-0x00000000000C0000-0x00000000000E8000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1116 set thread context of 3032	1116	rundll32.exe	32
PID 3032 set thread context of 1388	3032	rundll32.exe	21
PID 1708 set thread context of 1388	1708	cmmon32.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	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3032	rundll32.exe
3032	rundll32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe
1708	cmmon32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1116	rundll32.exe
3032	rundll32.exe
3032	rundll32.exe
3032	rundll32.exe
1708	cmmon32.exe
1708	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	rundll32.exe
Token: SeDebugPrivilege	1708	cmmon32.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 804 wrote to memory of 1116	804	rundll32.exe	31
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1116 wrote to memory of 3032	1116	rundll32.exe	32
PID 1388 wrote to memory of 1708	1388	Explorer.EXE	33
PID 1388 wrote to memory of 1708	1388	Explorer.EXE	33
PID 1388 wrote to memory of 1708	1388	Explorer.EXE	33
PID 1388 wrote to memory of 1708	1388	Explorer.EXE	33
PID 1708 wrote to memory of 2432	1708	cmmon32.exe	34
PID 1708 wrote to memory of 2432	1708	cmmon32.exe	34
PID 1708 wrote to memory of 2432	1708	cmmon32.exe	34
PID 1708 wrote to memory of 2432	1708	cmmon32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cvve2p5h0gqmdd.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:804
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cvve2p5h0gqmdd.dll,#1
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:1116
  - - C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\cvve2p5h0gqmdd.dll,#1
      4⤵
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:3032
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:1708
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2432

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/1116-0-0x00000000001B0000-0x00000000001B2000-memory.dmp

Filesize
8KB

Download
memory/1388-6-0x00000000064D0000-0x000000000660F000-memory.dmp

Filesize
1.2MB

Download
memory/1388-11-0x00000000064D0000-0x000000000660F000-memory.dmp

Filesize
1.2MB

Download
memory/1708-7-0x00000000008A0000-0x00000000008AD000-memory.dmp

Filesize
52KB

Download
memory/1708-9-0x00000000008A0000-0x00000000008AD000-memory.dmp

Filesize
52KB

Download
memory/1708-10-0x00000000000C0000-0x00000000000E8000-memory.dmp

Filesize
160KB

Download
memory/3032-1-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3032-2-0x0000000002230000-0x0000000002533000-memory.dmp

Filesize
3.0MB

Download
memory/3032-5-0x0000000000190000-0x00000000001A0000-memory.dmp

Filesize
64KB

Download
memory/3032-4-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

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