xloader | 2ea5c66405be0aa4503f7379be6c3520afd5f82784571825fb5032c96d59397c

General

Target

czOxHskgIAQwZ8m.exe
Size

425KB
MD5

edb54a30972b862cfba8589bb1f67c7e
SHA1

7f3b9b36342bb863950e592063db38cd2c3f8bb9
SHA256

856b8775a8063900378a815cd03d0f9628c4296eddd93ac9e9cd52269178c079
SHA512

51f1e192a0f06472c5bf3da68e511d1112dd61a8a429aeb14c39e3d8e05b0448b5086d4367a2953b3dbbaa453faac63aa4319127aa9944e68334322cc6bc8f42
SSDEEP

12288:S0SrZ2vE4MtuTN6GLMX3a9sO81joauMuB3fj:Sf2vE9tuPgHa2O8hoauMuB

Score

10^/10

xloader amb4 discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

amb4

Decoy

ameerkabob.com

wenzhikeji.online

ktnsoil.xyz

dock7rods.com

simbaimmigration.com

tanahvilamalino.online

amaozn-co-jp.xyz

atahukukbafra.com

attruth.net

jigservices.net

310indianway.com

freelotto.online

mylanding-page.com

dudemealprep.com

wellmaintainedhealth.com

vitemonprenom.com

laurynfauntroy.com

pilotmom.info

arpatientsapp.com

sendangdigital.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2728-12-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2728-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2856-21-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
1828	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2404 set thread context of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2728 set thread context of 1124	2728	czOxHskgIAQwZ8m.exe	20
PID 2856 set thread context of 1124	2856	colorcpl.exe	20

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	czOxHskgIAQwZ8m.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2404	czOxHskgIAQwZ8m.exe
2404	czOxHskgIAQwZ8m.exe
2404	czOxHskgIAQwZ8m.exe
2404	czOxHskgIAQwZ8m.exe
2404	czOxHskgIAQwZ8m.exe
2404	czOxHskgIAQwZ8m.exe
2728	czOxHskgIAQwZ8m.exe
2728	czOxHskgIAQwZ8m.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe
2856	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2728	czOxHskgIAQwZ8m.exe
2728	czOxHskgIAQwZ8m.exe
2728	czOxHskgIAQwZ8m.exe
2856	colorcpl.exe
2856	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2404	czOxHskgIAQwZ8m.exe
Token: SeDebugPrivilege	2728	czOxHskgIAQwZ8m.exe
Token: SeDebugPrivilege	2856	colorcpl.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 2404 wrote to memory of 2728	2404	czOxHskgIAQwZ8m.exe	31
PID 1124 wrote to memory of 2856	1124	Explorer.EXE	32
PID 1124 wrote to memory of 2856	1124	Explorer.EXE	32
PID 1124 wrote to memory of 2856	1124	Explorer.EXE	32
PID 1124 wrote to memory of 2856	1124	Explorer.EXE	32
PID 2856 wrote to memory of 1828	2856	colorcpl.exe	33
PID 2856 wrote to memory of 1828	2856	colorcpl.exe	33
PID 2856 wrote to memory of 1828	2856	colorcpl.exe	33
PID 2856 wrote to memory of 1828	2856	colorcpl.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe
  "C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe
    "C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2728
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:2856
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1828

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

Loading Replay Monitor...

Downloads

memory/1124-18-0x0000000006DC0000-0x0000000006F37000-memory.dmp

Filesize
1.5MB

Download
memory/1124-22-0x0000000006DC0000-0x0000000006F37000-memory.dmp

Filesize
1.5MB

Download
memory/2404-5-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2404-2-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2404-4-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download
memory/2404-0-0x000000007436E000-0x000000007436F000-memory.dmp

Filesize
4KB

Download
memory/2404-6-0x0000000004650000-0x00000000046A2000-memory.dmp

Filesize
328KB

Download
memory/2404-1-0x0000000000830000-0x00000000008A0000-memory.dmp

Filesize
448KB

Download
memory/2404-3-0x0000000000370000-0x000000000037E000-memory.dmp

Filesize
56KB

Download
memory/2404-13-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2728-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-12-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2728-14-0x0000000000A30000-0x0000000000D33000-memory.dmp

Filesize
3.0MB

Download
memory/2728-17-0x00000000001D0000-0x00000000001E1000-memory.dmp

Filesize
68KB

Download
memory/2728-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2728-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2728-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2856-19-0x00000000000D0000-0x00000000000E8000-memory.dmp

Filesize
96KB

Download
memory/2856-20-0x00000000000D0000-0x00000000000E8000-memory.dmp

Filesize
96KB

Download
memory/2856-21-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing