xloader | 5f3775f376c0ba2a894657f291b45e3d9a0a9ecd6a93162141dda0b9e9bc6e04

General

Target

PAIEMENT1.exe
Size

424KB
MD5

4a40bc732ce463e10ae463ee7b890242
SHA1

090fea71d8bc7abe48ea0d36d91a38ecf49f83d8
SHA256

1ac69ae85debbb73ec8b2bc1252374eb717b757b61819a012a8eedbac1148cd5
SHA512

d0efc801cb42571030a7e4381004eb1f1e3ee2c560726d1be48b8e17c23a5a5604a2e6e142b7354219957bd37cdb2e5eb5d1c1d5748018d88e5733594e4435df

Score

10^/10

xloader u9xn loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

u9xn

C2

http://www.crisisinterventionadvocates.com/u9xn/

Decoy

lifeguardingcoursenearme.com

bolsaspapelcdmx.com

parsleypkllqu.xyz

68134.online

shopthatlookboutique.com

canlibahisportal.com

oligopoly.city

srchwithus.online

151motors.com

17yue.info

auntmarysnj.com

hanansalman.com

heyunshangcheng.info

doorslamersplus.com

sfcn-dng.com

highvizpeople.com

seoexpertinbangladesh.com

christinegagnonjewellery.com

artifactorie.biz

mre3.net

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1372-57-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1372-58-0x000000000041D4F0-mapping.dmp	xloader
behavioral1/memory/1372-63-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1360-70-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1088 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

PAIEMENT1.exe

pid process

472 PAIEMENT1.exe

pid	process
1088	cmd.exe

pid	process
472	PAIEMENT1.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

PAIEMENT1.exePAIEMENT1.exeraserver.exe

description	pid	process	target process
PID 472 set thread context of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 1372 set thread context of 1396	1372	PAIEMENT1.exe	Explorer.EXE
PID 1372 set thread context of 1396	1372	PAIEMENT1.exe	Explorer.EXE
PID 1360 set thread context of 1396	1360	raserver.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

PAIEMENT1.exeraserver.exe

pid	process
1372	PAIEMENT1.exe
1372	PAIEMENT1.exe
1372	PAIEMENT1.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe
1360	raserver.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1396 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

PAIEMENT1.exeraserver.exe

pid process

1372 PAIEMENT1.exe
1372 PAIEMENT1.exe
1372 PAIEMENT1.exe
1372 PAIEMENT1.exe
1360 raserver.exe
1360 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PAIEMENT1.exeraserver.exe

description pid process

Token: SeDebugPrivilege 1372 PAIEMENT1.exe
Token: SeDebugPrivilege 1360 raserver.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1396 Explorer.EXE
1396 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1396 Explorer.EXE
1396 Explorer.EXE

pid	process
1396	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1372	PAIEMENT1.exe
Token: SeDebugPrivilege	1360	raserver.exe

pid	process
1396	Explorer.EXE
1396	Explorer.EXE

pid	process
1396	Explorer.EXE
1396	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PAIEMENT1.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 472 wrote to memory of 1372	472	PAIEMENT1.exe	PAIEMENT1.exe
PID 1396 wrote to memory of 1360	1396	Explorer.EXE	raserver.exe
PID 1396 wrote to memory of 1360	1396	Explorer.EXE	raserver.exe
PID 1396 wrote to memory of 1360	1396	Explorer.EXE	raserver.exe
PID 1396 wrote to memory of 1360	1396	Explorer.EXE	raserver.exe
PID 1360 wrote to memory of 1088	1360	raserver.exe	cmd.exe
PID 1360 wrote to memory of 1088	1360	raserver.exe	cmd.exe
PID 1360 wrote to memory of 1088	1360	raserver.exe	cmd.exe
PID 1360 wrote to memory of 1088	1360	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1396

C:\Users\Admin\AppData\Local\Temp\PAIEMENT1.exe
"C:\Users\Admin\AppData\Local\Temp\PAIEMENT1.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:472

C:\Users\Admin\AppData\Local\Temp\PAIEMENT1.exe
"C:\Users\Admin\AppData\Local\Temp\PAIEMENT1.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1372

C:\Windows\SysWOW64\raserver.exe
"C:\Windows\SysWOW64\raserver.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1360

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PAIEMENT1.exe"
3⤵
- Deletes itself
PID:1088

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsi149.tmp\mjcxbw.dll
MD5
e75fad4954d3cea12f4bbb5bf11fca90

SHA1
7ac1e5a5e1276a07660a954c8a4cf90508237bb6

SHA256
5e00724748d8300e54d0e9066d3c4bdb867609d9684f9558354f20ac65d7307b

SHA512
2a2234a864b299a8315042917840e84cf30695d5f2f54b4820dcbd08a80fe2ca8a0a8fa1b0ebd1691974ac1667d4b550d0b8911f780d967f273f48d79689ff1d

Download Submit
memory/472-55-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1088-68-0x0000000000000000-mapping.dmp

Download
memory/1360-66-0x0000000000000000-mapping.dmp

Download
memory/1360-72-0x0000000001D20000-0x0000000001DB0000-memory.dmp

Filesize
576KB

Download
memory/1360-71-0x0000000001E30000-0x0000000002133000-memory.dmp

Filesize
3.0MB

Download
memory/1360-70-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1360-69-0x0000000000130000-0x000000000014C000-memory.dmp

Filesize
112KB

Download
memory/1372-60-0x0000000000990000-0x0000000000C93000-memory.dmp

Filesize
3.0MB

Download
memory/1372-64-0x0000000000570000-0x0000000000581000-memory.dmp

Filesize
68KB

Download
memory/1372-63-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1372-61-0x00000000003D0000-0x00000000003E1000-memory.dmp

Filesize
68KB

Download
memory/1372-58-0x000000000041D4F0-mapping.dmp

Download
memory/1372-57-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1396-65-0x0000000006C50000-0x0000000006D91000-memory.dmp

Filesize
1.3MB

Download
memory/1396-62-0x0000000004360000-0x0000000004479000-memory.dmp

Filesize
1.1MB

Download
memory/1396-73-0x0000000007250000-0x000000000735D000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads