xloader | 19b682f4983833b4f3670a22763a06cad7476076ea99a6800e7dbc8732431fd8

General

Target

2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe
Size

1.4MB
MD5

2ea57e03a2e9da369e190a028d159045
SHA1

a367485284f0f3399f6f3f8a8649ff27d72271be
SHA256

19b682f4983833b4f3670a22763a06cad7476076ea99a6800e7dbc8732431fd8
SHA512

9367e3b70e9c136ec59d74879332ef5d1a9342588067aa87c41a3b00a5fb188e9676f354070c4bf26b58ca40f43d6db46f18d99de613cd8d5eba673dd753678e
SSDEEP

24576:tggDThVH+3nPxT6f5MBzhfyUTAXVNT2fXdvO9:ugR1+3nPF6m3fulNT2/

Score

10^/10

xloader uecu discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

uecu

Decoy

ishtarhotel.com

woodstrends.icu

jalenowens.com

manno.expert

ssg1asia.com

telepathylaw.com

quickoprintnv.com

abrosnm3.com

lumberjackcatering.com

beachujamaica.com

thomasjeffersonbyrd.com

starryfinds.com

shelavish2.com

royalglamempirellc.com

deixandomeuemprego.com

alexgoestech.xyz

opticamn.com

fermanchevybrandon.com

milbodegas.info

adunarsrl.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3792-13-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral2/memory/3792-18-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral2/memory/3092-24-0x00000000004B0000-0x00000000004D8000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5016 set thread context of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 3792 set thread context of 3428	3792	RegSvcs.exe	55
PID 3092 set thread context of 3428	3092	rundll32.exe	55

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 47 IoCs

pid	Process
5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe
3792	RegSvcs.exe
3792	RegSvcs.exe
3792	RegSvcs.exe
3792	RegSvcs.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe
3092	rundll32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3792	RegSvcs.exe
3792	RegSvcs.exe
3792	RegSvcs.exe
3092	rundll32.exe
3092	rundll32.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe
Token: SeDebugPrivilege	3792	RegSvcs.exe
Token: SeDebugPrivilege	3092	rundll32.exe
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE
Token: SeShutdownPrivilege	3428	Explorer.EXE
Token: SeCreatePagefilePrivilege	3428	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3428	Explorer.EXE
3428	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3428	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 5016 wrote to memory of 3792	5016	2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe	90
PID 3428 wrote to memory of 3092	3428	Explorer.EXE	92
PID 3428 wrote to memory of 3092	3428	Explorer.EXE	92
PID 3428 wrote to memory of 3092	3428	Explorer.EXE	92
PID 3092 wrote to memory of 2568	3092	rundll32.exe	93
PID 3092 wrote to memory of 2568	3092	rundll32.exe	93
PID 3092 wrote to memory of 2568	3092	rundll32.exe	93

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3428
- C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\2ea57e03a2e9da369e190a028d159045_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5016
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3792
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1368
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:3092
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2568

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/3092-24-0x00000000004B0000-0x00000000004D8000-memory.dmp

Filesize
160KB

Download
memory/3092-23-0x0000000000B80000-0x0000000000B94000-memory.dmp

Filesize
80KB

Download
memory/3092-21-0x0000000000B80000-0x0000000000B94000-memory.dmp

Filesize
80KB

Download
memory/3428-30-0x0000000008E30000-0x0000000008FBD000-memory.dmp

Filesize
1.6MB

Download
memory/3428-29-0x0000000008E30000-0x0000000008FBD000-memory.dmp

Filesize
1.6MB

Download
memory/3428-25-0x00000000030F0000-0x00000000031AF000-memory.dmp

Filesize
764KB

Download
memory/3428-20-0x00000000030F0000-0x00000000031AF000-memory.dmp

Filesize
764KB

Download
memory/3792-13-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3792-19-0x0000000001BE0000-0x0000000001BF0000-memory.dmp

Filesize
64KB

Download
memory/3792-18-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/3792-16-0x0000000001780000-0x0000000001ACA000-memory.dmp

Filesize
3.3MB

Download
memory/5016-6-0x00000000052A0000-0x00000000052F6000-memory.dmp

Filesize
344KB

Download
memory/5016-7-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/5016-11-0x0000000005FD0000-0x000000000606E000-memory.dmp

Filesize
632KB

Download
memory/5016-15-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/5016-10-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/5016-9-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/5016-8-0x0000000005240000-0x000000000525E000-memory.dmp

Filesize
120KB

Download
memory/5016-12-0x0000000005DC0000-0x0000000005DEE000-memory.dmp

Filesize
184KB

Download
memory/5016-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/5016-5-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/5016-4-0x00000000050A0000-0x0000000005132000-memory.dmp

Filesize
584KB

Download
memory/5016-3-0x0000000005650000-0x0000000005BF4000-memory.dmp

Filesize
5.6MB

Download
memory/5016-2-0x0000000005000000-0x000000000509C000-memory.dmp

Filesize
624KB

Download
memory/5016-1-0x00000000004A0000-0x0000000000610000-memory.dmp

Filesize
1.4MB

Download

Analysis

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