xloader | 35e45ba4f3e402b6fb56c741b3a12bdeab91b4f76275700d5202319657bf0815

General

Target

ab.exe
Size

438KB
MD5

ec5f47fe4a35107c14c9837b1737e7d9
SHA1

fd6070cd7662568cfc1e9f6451cd4a30f866b62e
SHA256

97710e37b088b72c870ceb2a4c03a04625f800a83549ed4537dc64893fc33587
SHA512

efb918a8368689df3aa259939a7208febd12ec26f928a0d452fd39dd06a5dec3a6e9265de2acaa49a9092ad6da8c18d30292637f870d14bdbec4e547f2d42337
SSDEEP

6144:ttVixIMpYEEsD5S5OMykMS4vk2VuKDMP9N1bIyu0TFxYVYQXV4bfxZpHVWKl5azI:fhE7DUmvRSIyuEFxISZZpHVWKrazcl9

Score

10^/10

xloader xfts discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

xfts

Decoy

dailiesplatform.com

krlanka.com

koms.info

chesslearner.com

softwarefully.com

yogiplayground.com

learhee.com

faithbook.info

pepperrefo.com

kratochvil-elektro.com

artbyg2.com

123-e.com

levelupyourbody.info

ecommercebusinessowner.com

floraseriestrilogy.com

sdyykt.com

swchof.com

huaxinhui.tech

sems-iress2016.com

vasudhalibrary.com

Signatures

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

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2864-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2864-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2864-20-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2936-26-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2660	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1984 set thread context of 2864	1984	ab.exe	31
PID 2864 set thread context of 1192	2864	ab.exe	21
PID 2864 set thread context of 1192	2864	ab.exe	21
PID 2936 set thread context of 1192	2936	explorer.exe	21

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

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1984	ab.exe
1984	ab.exe
1984	ab.exe
2864	ab.exe
2864	ab.exe
2864	ab.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe
2936	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2864	ab.exe
2864	ab.exe
2864	ab.exe
2864	ab.exe
2936	explorer.exe
2936	explorer.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	ab.exe
Token: SeDebugPrivilege	2864	ab.exe
Token: SeDebugPrivilege	2936	explorer.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1984 wrote to memory of 2864	1984	ab.exe	31
PID 1192 wrote to memory of 2936	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2936	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2936	1192	Explorer.EXE	32
PID 1192 wrote to memory of 2936	1192	Explorer.EXE	32
PID 2936 wrote to memory of 2660	2936	explorer.exe	33
PID 2936 wrote to memory of 2660	2936	explorer.exe	33
PID 2936 wrote to memory of 2660	2936	explorer.exe	33
PID 2936 wrote to memory of 2660	2936	explorer.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1192
- C:\Users\Admin\AppData\Local\Temp\ab.exe
  "C:\Users\Admin\AppData\Local\Temp\ab.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Users\Admin\AppData\Local\Temp\ab.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2864
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.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:2936
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\ab.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2660

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/1192-18-0x0000000004C00000-0x0000000004D00000-memory.dmp

Filesize
1024KB

Download
memory/1192-27-0x00000000051B0000-0x00000000052F6000-memory.dmp

Filesize
1.3MB

Download
memory/1192-22-0x0000000004C00000-0x0000000004D00000-memory.dmp

Filesize
1024KB

Download
memory/1192-23-0x00000000051B0000-0x00000000052F6000-memory.dmp

Filesize
1.3MB

Download
memory/1984-6-0x0000000008240000-0x00000000082BC000-memory.dmp

Filesize
496KB

Download
memory/1984-5-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/1984-7-0x0000000000750000-0x0000000000780000-memory.dmp

Filesize
192KB

Download
memory/1984-1-0x0000000001260000-0x00000000012D4000-memory.dmp

Filesize
464KB

Download
memory/1984-2-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/1984-3-0x00000000003C0000-0x00000000003C8000-memory.dmp

Filesize
32KB

Download
memory/1984-4-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/1984-13-0x0000000074B80000-0x000000007526E000-memory.dmp

Filesize
6.9MB

Download
memory/2864-14-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/2864-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2864-17-0x0000000000200000-0x0000000000211000-memory.dmp

Filesize
68KB

Download
memory/2864-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2864-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2864-9-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2864-21-0x0000000000350000-0x0000000000361000-memory.dmp

Filesize
68KB

Download
memory/2864-20-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2864-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2936-24-0x0000000000590000-0x0000000000811000-memory.dmp

Filesize
2.5MB

Download
memory/2936-25-0x0000000000590000-0x0000000000811000-memory.dmp

Filesize
2.5MB

Download
memory/2936-26-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download

Analysis

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