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
behavioral2/memory/4356-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4356-18-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/1148-22-0x0000000000E60000-0x0000000000E89000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3888 set thread context of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 4356 set thread context of 3476	4356	czOxHskgIAQwZ8m.exe	56
PID 1148 set thread context of 3476	1148	cmd.exe	56

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

Suspicious behavior: EnumeratesProcesses 50 IoCs

pid	Process
3888	czOxHskgIAQwZ8m.exe
3888	czOxHskgIAQwZ8m.exe
3888	czOxHskgIAQwZ8m.exe
3888	czOxHskgIAQwZ8m.exe
3888	czOxHskgIAQwZ8m.exe
3888	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe
1148	cmd.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4356	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
4356	czOxHskgIAQwZ8m.exe
1148	cmd.exe
1148	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3888	czOxHskgIAQwZ8m.exe
Token: SeDebugPrivilege	4356	czOxHskgIAQwZ8m.exe
Token: SeDebugPrivilege	1148	cmd.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3476	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3888 wrote to memory of 4356	3888	czOxHskgIAQwZ8m.exe	105
PID 3476 wrote to memory of 1148	3476	Explorer.EXE	106
PID 3476 wrote to memory of 1148	3476	Explorer.EXE	106
PID 3476 wrote to memory of 1148	3476	Explorer.EXE	106
PID 1148 wrote to memory of 908	1148	cmd.exe	107
PID 1148 wrote to memory of 908	1148	cmd.exe	107
PID 1148 wrote to memory of 908	1148	cmd.exe	107

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3476
- 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:3888
- - 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:4356
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.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:1148
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\czOxHskgIAQwZ8m.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:908

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/1148-22-0x0000000000E60000-0x0000000000E89000-memory.dmp

Filesize
164KB

Download
memory/1148-19-0x0000000000F50000-0x0000000000FAA000-memory.dmp

Filesize
360KB

Download
memory/1148-21-0x0000000000F50000-0x0000000000FAA000-memory.dmp

Filesize
360KB

Download
memory/3476-17-0x0000000008D00000-0x0000000008EA7000-memory.dmp

Filesize
1.7MB

Download
memory/3476-29-0x00000000032A0000-0x00000000033B0000-memory.dmp

Filesize
1.1MB

Download
memory/3476-27-0x00000000032A0000-0x00000000033B0000-memory.dmp

Filesize
1.1MB

Download
memory/3476-26-0x00000000032A0000-0x00000000033B0000-memory.dmp

Filesize
1.1MB

Download
memory/3476-23-0x0000000008D00000-0x0000000008EA7000-memory.dmp

Filesize
1.7MB

Download
memory/3888-6-0x00000000079F0000-0x00000000079FE000-memory.dmp

Filesize
56KB

Download
memory/3888-0-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/3888-10-0x000000000A440000-0x000000000A492000-memory.dmp

Filesize
328KB

Download
memory/3888-1-0x0000000000BA0000-0x0000000000C10000-memory.dmp

Filesize
448KB

Download
memory/3888-13-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/3888-2-0x0000000007F30000-0x00000000084D4000-memory.dmp

Filesize
5.6MB

Download
memory/3888-8-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/3888-3-0x0000000007A20000-0x0000000007AB2000-memory.dmp

Filesize
584KB

Download
memory/3888-4-0x0000000074510000-0x0000000074CC0000-memory.dmp

Filesize
7.7MB

Download
memory/3888-7-0x000000007451E000-0x000000007451F000-memory.dmp

Filesize
4KB

Download
memory/3888-9-0x000000000A350000-0x000000000A3EC000-memory.dmp

Filesize
624KB

Download
memory/3888-5-0x0000000001690000-0x000000000169A000-memory.dmp

Filesize
40KB

Download
memory/4356-15-0x0000000001420000-0x000000000176A000-memory.dmp

Filesize
3.3MB

Download
memory/4356-16-0x0000000000E80000-0x0000000000E91000-memory.dmp

Filesize
68KB

Download
memory/4356-18-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4356-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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