xloader | d6fce7f4f6a8c7c7ec013bd177f42ab0a9ef8d8ce6f505245ea09e41d33201e0

General

Target

SKM-97116373-PDF.exe
Size

322KB
MD5

49fd93fb9699d57c47b6c1ae98282170
SHA1

2ceb5be3f5cc5f91862d866c2b6b695b144cfa56
SHA256

d6fce7f4f6a8c7c7ec013bd177f42ab0a9ef8d8ce6f505245ea09e41d33201e0
SHA512

a2c41afc8a7fa52f309efeba8e31966ea376e6ef18870f59adf4531469c07cf2d55ed5ce46c0ea988da6d0e7cbb401cd8dbcf956ae27b21ad22259d1cdc8950f

Score

10^/10

xloader uar3 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

uar3

Decoy

sgadvocats.com

mjscannabus.com

hilldaley.com

ksdollhouse.com

hotgiftboutique.com

purebloodsmeet.com

relaunched.info

cap-glove.com

productcollection.store

fulikyy.xyz

remoteaviationjobs.com

bestcleancrystal.com

virtualorganizationpartner.com

bookgocar.com

hattuafhv.quest

makonigroup.com

officecom-myaccount.com

malgorzata-lac.com

e-learningeducators.com

hygilaur.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/544-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/544-61-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/584-65-0x00000000000C0000-0x00000000000E9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

112 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

SKM-97116373-PDF.exe

pid process

1916 SKM-97116373-PDF.exe

pid	process
112	cmd.exe

pid	process
1916	SKM-97116373-PDF.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

SKM-97116373-PDF.exeSKM-97116373-PDF.exewlanext.exe

description	pid	process	target process
PID 1916 set thread context of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 544 set thread context of 1436	544	SKM-97116373-PDF.exe	Explorer.EXE
PID 544 set thread context of 1436	544	SKM-97116373-PDF.exe	Explorer.EXE
PID 584 set thread context of 1436	584	wlanext.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 31 IoCs

Processes:

SKM-97116373-PDF.exewlanext.exe

pid	process
544	SKM-97116373-PDF.exe
544	SKM-97116373-PDF.exe
544	SKM-97116373-PDF.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe
584	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1436 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

SKM-97116373-PDF.exewlanext.exe

pid process

544 SKM-97116373-PDF.exe
544 SKM-97116373-PDF.exe
544 SKM-97116373-PDF.exe
544 SKM-97116373-PDF.exe
584 wlanext.exe
584 wlanext.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SKM-97116373-PDF.exewlanext.exe

description pid process

Token: SeDebugPrivilege 544 SKM-97116373-PDF.exe
Token: SeDebugPrivilege 584 wlanext.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1436 Explorer.EXE
1436 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1436 Explorer.EXE
1436 Explorer.EXE

pid	process
1436	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	544	SKM-97116373-PDF.exe
Token: SeDebugPrivilege	584	wlanext.exe

pid	process
1436	Explorer.EXE
1436	Explorer.EXE

pid	process
1436	Explorer.EXE
1436	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

SKM-97116373-PDF.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1916 wrote to memory of 544	1916	SKM-97116373-PDF.exe	SKM-97116373-PDF.exe
PID 1436 wrote to memory of 584	1436	Explorer.EXE	wlanext.exe
PID 1436 wrote to memory of 584	1436	Explorer.EXE	wlanext.exe
PID 1436 wrote to memory of 584	1436	Explorer.EXE	wlanext.exe
PID 1436 wrote to memory of 584	1436	Explorer.EXE	wlanext.exe
PID 584 wrote to memory of 112	584	wlanext.exe	cmd.exe
PID 584 wrote to memory of 112	584	wlanext.exe	cmd.exe
PID 584 wrote to memory of 112	584	wlanext.exe	cmd.exe
PID 584 wrote to memory of 112	584	wlanext.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:1436

C:\Users\Admin\AppData\Local\Temp\SKM-97116373-PDF.exe
"C:\Users\Admin\AppData\Local\Temp\SKM-97116373-PDF.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1916

C:\Users\Admin\AppData\Local\Temp\SKM-97116373-PDF.exe
"C:\Users\Admin\AppData\Local\Temp\SKM-97116373-PDF.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:544

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:584

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SKM-97116373-PDF.exe"
3⤵
- Deletes itself
PID:112

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

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Downloads

\Users\Admin\AppData\Local\Temp\nsiC4A8.tmp\rwam.dll
MD5
33a74a4b53cd8dff8593605ea8308f77

SHA1
8cca33ee4e2079d196f4b4be2a42a537c3f00b13

SHA256
091beda14bcaac53625f006d1f77f6c8bfc07aa45174762057ae4d698a854e1b

SHA512
8843daad9fc93451eba9371b8dce2c975b81f7a94aa5cd402854a633092fac3815c585fa2dc1a26a76b9ed7709ea176f70b19392a5ca1144743e182aacdbfaad

Download Submit
memory/544-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/544-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/544-58-0x0000000000840000-0x0000000000B43000-memory.dmp

Filesize
3.0MB

Download
memory/544-59-0x00000000002C0000-0x00000000002D1000-memory.dmp

Filesize
68KB

Download
memory/544-62-0x0000000000310000-0x0000000000321000-memory.dmp

Filesize
68KB

Download
memory/584-64-0x00000000004C0000-0x00000000004D6000-memory.dmp

Filesize
88KB

Download
memory/584-65-0x00000000000C0000-0x00000000000E9000-memory.dmp

Filesize
164KB

Download
memory/584-66-0x0000000002000000-0x0000000002303000-memory.dmp

Filesize
3.0MB

Download
memory/584-67-0x0000000000570000-0x0000000000600000-memory.dmp

Filesize
576KB

Download
memory/1436-60-0x0000000005EB0000-0x0000000005F6B000-memory.dmp

Filesize
748KB

Download
memory/1436-63-0x0000000005F80000-0x0000000006039000-memory.dmp

Filesize
740KB

Download
memory/1436-68-0x00000000066C0000-0x0000000006757000-memory.dmp

Filesize
604KB

Download
memory/1916-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads