xloader | 9ed0b8ed78f9a77e00224c7b90f8e813d61bb2df4318ad7526c590f2743dc4cb

General

Target

??__ ? __ ?????__ ??? __ ...pdf.....exe
Size

395KB
MD5

b68d6bb055b0fb1367900eaee876dd20
SHA1

46721ae469d81070727744a16f02d8c88144e99f
SHA256

b0fe839ee84678c067828ee5d5d48a30e2588c4a29fd9402609a335fe667c91d
SHA512

890f7cf60b16ed5d7edb935fb5e2c4a4397751e67e01654d09022a45290fd7d46f24786be99af3bc99a9964458be757d82756c074cd07d032197c27cb00b6e9e

Score

10^/10

xloader s86j loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

s86j

C2

http://www.emboldenlife.net/s86j/

Decoy

getlumichargeserver.com

act-vitaalcoach.store

craftgeekz.com

monetflowerfarm.com

morakotislandrealty.com

onlineastrologeruk.com

evvpsml.com

hnbtc.net

auxiliacapitalpartnersllc.com

rdwoodworksstore.com

shulwinfitness.com

arterialhealthgrids.com

cryptork.biz

solomini-tech.com

porttownsendapartments.com

poprumor.com

assetsauctioneer.com

electronics2anyone.com

upskillpme.online

247fooddelivery.com

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1292-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1292-63-0x000000000041D4F0-mapping.dmp	xloader
behavioral1/memory/1120-72-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1468 cmd.exe

pid	process
1468	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

____ _ __ _______ ___ __ ...pdf.....exe____ _ __ _______ ___ __ ...pdf.....execmstp.exe

description	pid	process	target process
PID 1364 set thread context of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1292 set thread context of 1204	1292	____ _ __ _______ ___ __ ...pdf.....exe	Explorer.EXE
PID 1120 set thread context of 1204	1120	cmstp.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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

968 schtasks.exe

pid	process
968	schtasks.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

____ _ __ _______ ___ __ ...pdf.....exe____ _ __ _______ ___ __ ...pdf.....execmstp.exe

pid	process
1364	____ _ __ _______ ___ __ ...pdf.....exe
1364	____ _ __ _______ ___ __ ...pdf.....exe
1292	____ _ __ _______ ___ __ ...pdf.....exe
1292	____ _ __ _______ ___ __ ...pdf.....exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe
1120	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE

pid	process
1204	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

____ _ __ _______ ___ __ ...pdf.....execmstp.exe

pid	process
1292	____ _ __ _______ ___ __ ...pdf.....exe
1292	____ _ __ _______ ___ __ ...pdf.....exe
1292	____ _ __ _______ ___ __ ...pdf.....exe
1120	cmstp.exe
1120	cmstp.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

____ _ __ _______ ___ __ ...pdf.....exe____ _ __ _______ ___ __ ...pdf.....execmstp.exe

description	pid	process
Token: SeDebugPrivilege	1364	____ _ __ _______ ___ __ ...pdf.....exe
Token: SeDebugPrivilege	1292	____ _ __ _______ ___ __ ...pdf.....exe
Token: SeDebugPrivilege	1120	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

____ _ __ _______ ___ __ ...pdf.....exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1364 wrote to memory of 968	1364	____ _ __ _______ ___ __ ...pdf.....exe	schtasks.exe
PID 1364 wrote to memory of 968	1364	____ _ __ _______ ___ __ ...pdf.....exe	schtasks.exe
PID 1364 wrote to memory of 968	1364	____ _ __ _______ ___ __ ...pdf.....exe	schtasks.exe
PID 1364 wrote to memory of 968	1364	____ _ __ _______ ___ __ ...pdf.....exe	schtasks.exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1364 wrote to memory of 1292	1364	____ _ __ _______ ___ __ ...pdf.....exe	____ _ __ _______ ___ __ ...pdf.....exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1204 wrote to memory of 1120	1204	Explorer.EXE	cmstp.exe
PID 1120 wrote to memory of 1468	1120	cmstp.exe	cmd.exe
PID 1120 wrote to memory of 1468	1120	cmstp.exe	cmd.exe
PID 1120 wrote to memory of 1468	1120	cmstp.exe	cmd.exe
PID 1120 wrote to memory of 1468	1120	cmstp.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:1204

C:\Users\Admin\AppData\Local\Temp\____ _ __ _______ ___ __ ...pdf.....exe
"C:\Users\Admin\AppData\Local\Temp\____ _ __ _______ ___ __ ...pdf.....exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1364

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uEZCQueLPHvB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp980B.tmp"
3⤵
- Creates scheduled task(s)
PID:968

C:\Users\Admin\AppData\Local\Temp\____ _ __ _______ ___ __ ...pdf.....exe
"C:\Users\Admin\AppData\Local\Temp\____ _ __ _______ ___ __ ...pdf.....exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1292

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\____ _ __ _______ ___ __ ...pdf.....exe"
3⤵
- Deletes itself
PID:1468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/968-59-0x0000000000000000-mapping.dmp

Download
memory/1120-74-0x0000000001D80000-0x0000000001E10000-memory.dmp

Filesize
576KB

Download
memory/1120-73-0x0000000001F10000-0x0000000002213000-memory.dmp

Filesize
3.0MB

Download
memory/1120-72-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1120-71-0x0000000000440000-0x0000000000458000-memory.dmp

Filesize
96KB

Download
memory/1120-69-0x00000000768C1000-0x00000000768C3000-memory.dmp

Filesize
8KB

Download
memory/1120-68-0x0000000000000000-mapping.dmp

Download
memory/1204-67-0x0000000004820000-0x0000000004911000-memory.dmp

Filesize
964KB

Download
memory/1204-75-0x0000000004A60000-0x0000000004AF8000-memory.dmp

Filesize
608KB

Download
memory/1292-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1292-66-0x00000000002A0000-0x00000000002B1000-memory.dmp

Filesize
68KB

Download
memory/1292-65-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/1292-63-0x000000000041D4F0-mapping.dmp

Download
memory/1292-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1292-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1364-54-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/1364-58-0x0000000004690000-0x00000000046DB000-memory.dmp

Filesize
300KB

Download
memory/1364-57-0x0000000006EA0000-0x0000000006EA1000-memory.dmp

Filesize
4KB

Download
memory/1364-56-0x00000000004B0000-0x00000000004B7000-memory.dmp

Filesize
28KB

Download
memory/1468-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads