xloader | eb7d6d108c4b7e0a5b92727310d4d7fbeeb5b7d1db42277b88e209c2465b2b9a

General

Target

XLYQSINv1hOt3N4.exe
Size

1.2MB
MD5

1c81b3eb8da296cefba9d12af0673079
SHA1

bb408ca2fc342cc10f40343e7d58d1d3262427bc
SHA256

eb7d6d108c4b7e0a5b92727310d4d7fbeeb5b7d1db42277b88e209c2465b2b9a
SHA512

07a85e9a527a5628d397df78660207953e6bbeb78a38e3572af35bcf5ed02d1985140e460d7b81c50a7fc712d2d1b754651d9d586b1cb5d6b0e9616c9b9ef0dc

Score

10^/10

xloader zzun loader persistence rat spyware stealer suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/5080-137-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/5080-139-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/5080-147-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1720-150-0x0000000000A90000-0x0000000000ABC000-memory.dmp	xloader
behavioral2/memory/1720-155-0x0000000000A90000-0x0000000000ABC000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

XLYQSINv1hOt3N4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2783062828-828903012-4218294845-1000\Control Panel\International\Geo\Nation	XLYQSINv1hOt3N4.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	NETSTAT.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\KL-PLPXP-27 = "C:\\Program Files (x86)\\J4hfx\\9rphntchntu0wvh.exe"	NETSTAT.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

XLYQSINv1hOt3N4.exeXLYQSINv1hOt3N4.exeNETSTAT.EXE

description	pid	process	target process
PID 4192 set thread context of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 5080 set thread context of 628	5080	XLYQSINv1hOt3N4.exe	Explorer.EXE
PID 5080 set thread context of 628	5080	XLYQSINv1hOt3N4.exe	Explorer.EXE
PID 1720 set thread context of 628	1720	NETSTAT.EXE	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

NETSTAT.EXE

description ioc process

File opened for modification C:\Program Files (x86)\J4hfx\9rphntchntu0wvh.exe NETSTAT.EXE
Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

1720 NETSTAT.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\J4hfx\9rphntchntu0wvh.exe	NETSTAT.EXE

pid	process
1720	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-2783062828-828903012-4218294845-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

XLYQSINv1hOt3N4.exeNETSTAT.EXE

pid	process
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

628 Explorer.EXE

pid	process
628	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

XLYQSINv1hOt3N4.exeNETSTAT.EXE

pid	process
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
5080	XLYQSINv1hOt3N4.exe
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE
1720	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

XLYQSINv1hOt3N4.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 5080 XLYQSINv1hOt3N4.exe
Token: SeDebugPrivilege 1720 NETSTAT.EXE

description	pid	process
Token: SeDebugPrivilege	5080	XLYQSINv1hOt3N4.exe
Token: SeDebugPrivilege	1720	NETSTAT.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

XLYQSINv1hOt3N4.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 4192 wrote to memory of 5080	4192	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 628 wrote to memory of 1720	628	Explorer.EXE	NETSTAT.EXE
PID 628 wrote to memory of 1720	628	Explorer.EXE	NETSTAT.EXE
PID 628 wrote to memory of 1720	628	Explorer.EXE	NETSTAT.EXE
PID 1720 wrote to memory of 4708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 4708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 4708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 2756	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 2756	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 2756	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 1708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 1708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 1708	1720	NETSTAT.EXE	cmd.exe
PID 1720 wrote to memory of 4848	1720	NETSTAT.EXE	Firefox.exe
PID 1720 wrote to memory of 4848	1720	NETSTAT.EXE	Firefox.exe
PID 1720 wrote to memory of 4848	1720	NETSTAT.EXE	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:628

C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe
"C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4192

C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5080

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:4500

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3420

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3224

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3124

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:444

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:4068

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3948

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe"
3⤵
PID:4708

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:2756

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1708

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4848

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/628-142-0x0000000002940000-0x0000000002A91000-memory.dmp

Filesize
1.3MB

Download
memory/628-156-0x0000000008140000-0x0000000008242000-memory.dmp

Filesize
1.0MB

Download
memory/628-154-0x0000000008140000-0x0000000008242000-memory.dmp

Filesize
1.0MB

Download
memory/628-152-0x0000000002940000-0x0000000002A91000-memory.dmp

Filesize
1.3MB

Download
memory/628-145-0x0000000007FD0000-0x000000000813B000-memory.dmp

Filesize
1.4MB

Download
memory/1708-159-0x0000000000000000-mapping.dmp

Download
memory/1720-153-0x00000000011B0000-0x0000000001240000-memory.dmp

Filesize
576KB

Download
memory/1720-149-0x0000000000DD0000-0x0000000000DDB000-memory.dmp

Filesize
44KB

Download
memory/1720-155-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download
memory/1720-151-0x0000000001340000-0x000000000168A000-memory.dmp

Filesize
3.3MB

Download
memory/1720-150-0x0000000000A90000-0x0000000000ABC000-memory.dmp

Filesize
176KB

Download
memory/1720-146-0x0000000000000000-mapping.dmp

Download
memory/2756-157-0x0000000000000000-mapping.dmp

Download
memory/4192-135-0x0000000005BE0000-0x0000000005C36000-memory.dmp

Filesize
344KB

Download
memory/4192-131-0x0000000005950000-0x00000000059EC000-memory.dmp

Filesize
624KB

Download
memory/4192-132-0x0000000005FA0000-0x0000000006544000-memory.dmp

Filesize
5.6MB

Download
memory/4192-133-0x00000000059F0000-0x0000000005A82000-memory.dmp

Filesize
584KB

Download
memory/4192-134-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/4192-130-0x0000000000E30000-0x0000000000F60000-memory.dmp

Filesize
1.2MB

Download
memory/4708-148-0x0000000000000000-mapping.dmp

Download
memory/5080-136-0x0000000000000000-mapping.dmp

Download
memory/5080-141-0x0000000001620000-0x0000000001631000-memory.dmp

Filesize
68KB

Download
memory/5080-137-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/5080-140-0x0000000001AB0000-0x0000000001DFA000-memory.dmp

Filesize
3.3MB

Download
memory/5080-139-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/5080-144-0x0000000001980000-0x0000000001991000-memory.dmp

Filesize
68KB

Download
memory/5080-147-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads