xloader | 8fb0895d475560584335f48db057beb1840bbf685f180f46c53eb8aa8d8ec676

General

Target

PO_9084873737.PDF.exe
Size

841KB
MD5

686ca4f92b03e695e03d8d56ac9d01a0
SHA1

8bfc238b86d267f7eafd5613d7cda9c00765fcbb
SHA256

8fb0895d475560584335f48db057beb1840bbf685f180f46c53eb8aa8d8ec676
SHA512

cb7841b2a19fd475014ce8251640c5c7a4679c48dc0e08fb4948f3c7eafa344c23f8fc3115edb2ff9c9cba4adde39afbe134b0bcc9f061a0a9261fe8683cbdee

Score

10^/10

xloader pvxz loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

pvxz

C2

http://www.finetipster.com/pvxz/

Decoy

imt-token.club

abravewayocen.online

shcloudcar.com

mshoppingworld.online

ncgf08.xyz

stuinfo.xyz

wesavetheplanetofficial.com

tourbox.xyz

believeinyourselftraining.com

jsboyat.com

aaeconomy.info

9etmorea.info

purosepeti7.com

goticketly.com

pinkmemorypt.com

mylifewellnesscentre.com

iridina.online

petrestore.online

neema.xyz

novelfooditalia.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/940-117-0x0000000000000000-mapping.dmp	xloader
behavioral2/memory/940-119-0x0000000073980000-0x00000000739A9000-memory.dmp	xloader
behavioral2/memory/420-127-0x00000000008B0000-0x00000000008D9000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PO_9084873737.PDF.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dqupdjv = "C:\\Users\\Public\\Libraries\\vjdpuqD.url"	PO_9084873737.PDF.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

secinit.exechkdsk.exe

description	pid	process	target process
PID 940 set thread context of 2972	940	secinit.exe	Explorer.EXE
PID 420 set thread context of 2972	420	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

secinit.exechkdsk.exe

pid	process
940	secinit.exe
940	secinit.exe
940	secinit.exe
940	secinit.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe
420	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2972 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

secinit.exechkdsk.exe

pid process

940 secinit.exe
940 secinit.exe
940 secinit.exe
420 chkdsk.exe
420 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

secinit.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 940 secinit.exe
Token: SeDebugPrivilege 420 chkdsk.exe

pid	process
2972	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	940	secinit.exe
Token: SeDebugPrivilege	420	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PO_9084873737.PDF.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 1796 wrote to memory of 940	1796	PO_9084873737.PDF.exe	secinit.exe
PID 2972 wrote to memory of 420	2972	Explorer.EXE	chkdsk.exe
PID 2972 wrote to memory of 420	2972	Explorer.EXE	chkdsk.exe
PID 2972 wrote to memory of 420	2972	Explorer.EXE	chkdsk.exe
PID 420 wrote to memory of 772	420	chkdsk.exe	cmd.exe
PID 420 wrote to memory of 772	420	chkdsk.exe	cmd.exe
PID 420 wrote to memory of 772	420	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2972

C:\Users\Admin\AppData\Local\Temp\PO_9084873737.PDF.exe
"C:\Users\Admin\AppData\Local\Temp\PO_9084873737.PDF.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1796

C:\Windows\SysWOW64\secinit.exe
C:\Windows\System32\secinit.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:940

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:420

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\secinit.exe"
3⤵
PID:772

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/420-124-0x0000000000000000-mapping.dmp

Download
memory/420-129-0x00000000051B0000-0x0000000005240000-memory.dmp

Filesize
576KB

Download
memory/420-128-0x0000000000CE0000-0x0000000001000000-memory.dmp

Filesize
3.1MB

Download
memory/420-127-0x00000000008B0000-0x00000000008D9000-memory.dmp

Filesize
164KB

Download
memory/420-126-0x0000000001010000-0x000000000101A000-memory.dmp

Filesize
40KB

Download
memory/772-125-0x0000000000000000-mapping.dmp

Download
memory/940-118-0x0000000000B20000-0x0000000000B21000-memory.dmp

Filesize
4KB

Download
memory/940-121-0x0000000000F80000-0x00000000012A0000-memory.dmp

Filesize
3.1MB

Download
memory/940-122-0x00000000012A0000-0x00000000012B1000-memory.dmp

Filesize
68KB

Download
memory/940-119-0x0000000073980000-0x00000000739A9000-memory.dmp

Filesize
164KB

Download
memory/940-117-0x0000000000000000-mapping.dmp

Download
memory/1796-115-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/1796-116-0x00000000022B1000-0x00000000022C5000-memory.dmp

Filesize
80KB

Download
memory/2972-123-0x0000000006B30000-0x0000000006C9F000-memory.dmp

Filesize
1.4MB

Download
memory/2972-130-0x00000000030E0000-0x00000000031AE000-memory.dmp

Filesize
824KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads