xloader | 9c7600acbd54dc47b8a0615fb75d72dfc84e78266f1c8a0059520e57a97dca91

General

Target

Scan_00003984849905654356.exe
Size

365KB
MD5

29eaa8092a2847b8b13922f9e97441a0
SHA1

36ef99adb92e1ed025a47c5edb9a8a373dbafb0e
SHA256

9c24cb754ba7bd9c72075bb67b4254763a891a0086316f9217c3f247d84cff61
SHA512

b37099aff517abe64c7f1837e82a90ab767c0215947159c84ef91de55018006e13fdad7a2eb64a59a6ae7fa9d39c2c0f018b8d22496661551b0ae9dae314393b
SSDEEP

6144:UPAObj0k20+ZfFzB5xNb47b1AMGXX9WjMilj/OojjE7T1DpnwmNfSle8Vdv3j/:UP1bY8+ZfFzBtbYAt9EMiF/o7pFwmNfC

Score

10^/10

xloader er3b discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.1

Campaign

er3b

Decoy

mapaccelerated.com

deanartpg.com

southboundsisters.com

ocstutoriales.com

sappe2france.com

morethanentertained.com

kees3d.com

jjsuzuki.com

heroldmion.com

globeheattreaters.com

ompassionatetelemedicine.com

pacificwestsurrogacy.com

eaplsy.com

lccdqrvgw.icu

collectorcarshop.com

438tamarack.com

gokuid.com

jessicavelasquez.com

avanthomeinspections.com

thebrushstory.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2692-2-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/2692-5-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/2652-10-0x0000000000110000-0x0000000000138000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2560	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2664 set thread context of 2692	2664	Scan_00003984849905654356.exe	32
PID 2692 set thread context of 1188	2692	Scan_00003984849905654356.exe	21
PID 2652 set thread context of 1188	2652	wuapp.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	Scan_00003984849905654356.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuapp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2692	Scan_00003984849905654356.exe
2692	Scan_00003984849905654356.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe
2652	wuapp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2664	Scan_00003984849905654356.exe
2692	Scan_00003984849905654356.exe
2692	Scan_00003984849905654356.exe
2692	Scan_00003984849905654356.exe
2652	wuapp.exe
2652	wuapp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	Scan_00003984849905654356.exe
Token: SeDebugPrivilege	2652	wuapp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 2692	2664	Scan_00003984849905654356.exe	32
PID 2664 wrote to memory of 2692	2664	Scan_00003984849905654356.exe	32
PID 2664 wrote to memory of 2692	2664	Scan_00003984849905654356.exe	32
PID 2664 wrote to memory of 2692	2664	Scan_00003984849905654356.exe	32
PID 2664 wrote to memory of 2692	2664	Scan_00003984849905654356.exe	32
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 1188 wrote to memory of 2652	1188	Explorer.EXE	33
PID 2652 wrote to memory of 2560	2652	wuapp.exe	34
PID 2652 wrote to memory of 2560	2652	wuapp.exe	34
PID 2652 wrote to memory of 2560	2652	wuapp.exe	34
PID 2652 wrote to memory of 2560	2652	wuapp.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\Scan_00003984849905654356.exe
  "C:\Users\Admin\AppData\Local\Temp\Scan_00003984849905654356.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Users\Admin\AppData\Local\Temp\Scan_00003984849905654356.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan_00003984849905654356.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.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:2652
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Scan_00003984849905654356.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2560

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/1188-11-0x0000000004610000-0x00000000046CB000-memory.dmp

Filesize
748KB

Download
memory/1188-7-0x0000000004610000-0x00000000046CB000-memory.dmp

Filesize
748KB

Download
memory/1188-15-0x00000000043D0000-0x000000000446B000-memory.dmp

Filesize
620KB

Download
memory/1188-17-0x00000000043D0000-0x000000000446B000-memory.dmp

Filesize
620KB

Download
memory/1188-18-0x00000000043D0000-0x000000000446B000-memory.dmp

Filesize
620KB

Download
memory/2652-9-0x0000000000FA0000-0x0000000000FAB000-memory.dmp

Filesize
44KB

Download
memory/2652-8-0x0000000000FA0000-0x0000000000FAB000-memory.dmp

Filesize
44KB

Download
memory/2652-10-0x0000000000110000-0x0000000000138000-memory.dmp

Filesize
160KB

Download
memory/2664-1-0x0000000000260000-0x0000000000360000-memory.dmp

Filesize
1024KB

Download
memory/2692-2-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2692-3-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/2692-6-0x0000000000130000-0x0000000000141000-memory.dmp

Filesize
68KB

Download
memory/2692-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

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