xloader | e58040ca544dd66359a8937addea0bc7749b3b724015b6b4b251216bdbe2ce58

General

Target

JSEX10210033.exe
Size

659KB
MD5

8ca280d8728f0b0e03ad27ec04024732
SHA1

defbb74a6049ee6fb6070e535bd58942c10d4d60
SHA256

5480270e0354df8f209301009f1ef6f1a1c39b800a7fb0c5d5d69c4a81441cc5
SHA512

dee1a463a664ff5b016f774bd72245f3e76b31d81aae033290c3dc6a62a6761330c800dd46ef3421b863370feebec6e8fc2aff56d766d378416ed50e4dda2437
SSDEEP

6144:h8/dDx5ItULlPpukQe9QDfgAxmNzWdjPCUaR6nt2Nr3Dyq4MAsTrw4Jh0k:6/ZDRJQea/azWdjK6KDyMAK1

Score

10^/10

xloader fo8q discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

fo8q

Decoy

idesignbymadelinefl.com

finleygoods.com

hfxyyq.com

jjhh9656.com

superstarcoding.com

synergybridges.com

fantom.art

zebramovie.com

keephimmine.com

cmbego.com

shreegurudattaenterprises.com

appcoinsupport.services

roysecitystorage.com

gentlemensstories.com

hubinternationalinnovation.com

letscleartheairnow.com

strueyouneedto.space

schoolofsevens.com

cannaonline.net

slimmersite.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/2804-11-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2804-15-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2804-19-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2624-25-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2656	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 2804	2536	JSEX10210033.exe	31
PID 2804 set thread context of 1128	2804	JSEX10210033.exe	20
PID 2804 set thread context of 1128	2804	JSEX10210033.exe	20
PID 2624 set thread context of 1128	2624	NETSTAT.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JSEX10210033.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NETSTAT.EXE

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2624	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
2804	JSEX10210033.exe
2804	JSEX10210033.exe
2804	JSEX10210033.exe
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE
2624	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2804	JSEX10210033.exe
2804	JSEX10210033.exe
2804	JSEX10210033.exe
2804	JSEX10210033.exe
2624	NETSTAT.EXE
2624	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	JSEX10210033.exe
Token: SeDebugPrivilege	2624	NETSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 2536 wrote to memory of 2804	2536	JSEX10210033.exe	31
PID 1128 wrote to memory of 2624	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2624	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2624	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2624	1128	Explorer.EXE	33
PID 2624 wrote to memory of 2656	2624	NETSTAT.EXE	34
PID 2624 wrote to memory of 2656	2624	NETSTAT.EXE	34
PID 2624 wrote to memory of 2656	2624	NETSTAT.EXE	34
PID 2624 wrote to memory of 2656	2624	NETSTAT.EXE	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Users\Admin\AppData\Local\Temp\JSEX10210033.exe
  "C:\Users\Admin\AppData\Local\Temp\JSEX10210033.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Users\Admin\AppData\Local\Temp\JSEX10210033.exe
    "C:\Users\Admin\AppData\Local\Temp\JSEX10210033.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2804
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2628
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\JSEX10210033.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

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/1128-17-0x0000000006740000-0x0000000006806000-memory.dmp

Filesize
792KB

Download
memory/1128-26-0x0000000007160000-0x0000000007280000-memory.dmp

Filesize
1.1MB

Download
memory/1128-22-0x0000000007160000-0x0000000007280000-memory.dmp

Filesize
1.1MB

Download
memory/1128-21-0x0000000006740000-0x0000000006806000-memory.dmp

Filesize
792KB

Download
memory/2536-6-0x0000000002070000-0x00000000020C2000-memory.dmp

Filesize
328KB

Download
memory/2536-3-0x00000000003B0000-0x00000000003BC000-memory.dmp

Filesize
48KB

Download
memory/2536-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2536-1-0x0000000000A30000-0x0000000000ADA000-memory.dmp

Filesize
680KB

Download
memory/2536-5-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-12-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2536-4-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2536-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2624-25-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/2624-23-0x0000000000BD0000-0x0000000000BD9000-memory.dmp

Filesize
36KB

Download
memory/2624-24-0x0000000000BD0000-0x0000000000BD9000-memory.dmp

Filesize
36KB

Download
memory/2804-8-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2804-19-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2804-20-0x00000000003C0000-0x00000000003D1000-memory.dmp

Filesize
68KB

Download
memory/2804-15-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2804-16-0x0000000000350000-0x0000000000361000-memory.dmp

Filesize
68KB

Download
memory/2804-13-0x0000000000AE0000-0x0000000000DE3000-memory.dmp

Filesize
3.0MB

Download
memory/2804-7-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2804-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-11-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

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