xloader | 3f383c683795d277510e0fb4c806ae17bfb33dd6ff875b66c159068e58c28818

General

Target

arrival notice.exe
Size

661KB
MD5

692c22c9579ce47100a87e90f911b202
SHA1

29189325967d4716883edabb4c03a5a30d836896
SHA256

3f383c683795d277510e0fb4c806ae17bfb33dd6ff875b66c159068e58c28818
SHA512

98c6759ef92a350f570dd74b2c53d0307d1c8cf0f4b875ba5d2bb13f11e4bd39ef329b2131f45a18f7d48fdd24c2ab3c65370d71efe9f6975d4b3a4428419887

Score

10^/10

xloader n58i loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.4

Campaign

n58i

C2

http://www.nordicbatterybelt.net/n58i/

Decoy

southerncircumstance.com

mcsasco.com

ifbrick.com

societe-anonyme.net

bantank.xyz

dogecoin.beauty

aboutacoffee.com

babalandlordrealestate.com

tintgta.com

integrity.directory

parwnr.icu

poltishof.online

stayandstyle.com

ickjeame.xyz

currentmotors.ca

pond.fund

petrosterzis.com

deadbydaylightpoints.com

hotel-balzac.paris

focusmaintainance.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
behavioral2/memory/2680-126-0x000000000041D470-mapping.dmp	xloader
behavioral2/memory/2680-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/744-132-0x0000000000950000-0x0000000000979000-memory.dmp	xloader

Suspicious use of SetThreadContext 2 IoCs

Processes:

arrival notice.exearrival notice.exe

description	pid	process	target process
PID 3980 set thread context of 2680	3980	arrival notice.exe	arrival notice.exe
PID 2680 set thread context of 3012	2680	arrival notice.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-2559286294-2439613352-4032193287-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

arrival notice.exe

pid process

2680 arrival notice.exe
2680 arrival notice.exe
2680 arrival notice.exe
2680 arrival notice.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3012 Explorer.EXE
Suspicious behavior: MapViewOfSection 3 IoCs

Processes:

arrival notice.exe

pid process

2680 arrival notice.exe
2680 arrival notice.exe
2680 arrival notice.exe

pid	process
2680	arrival notice.exe
2680	arrival notice.exe
2680	arrival notice.exe
2680	arrival notice.exe

pid	process
3012	Explorer.EXE

pid	process
2680	arrival notice.exe
2680	arrival notice.exe
2680	arrival notice.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

arrival notice.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2680	arrival notice.exe
Token: SeShutdownPrivilege	3012	Explorer.EXE
Token: SeCreatePagefilePrivilege	3012	Explorer.EXE
Token: SeShutdownPrivilege	3012	Explorer.EXE
Token: SeCreatePagefilePrivilege	3012	Explorer.EXE
Token: SeShutdownPrivilege	3012	Explorer.EXE
Token: SeCreatePagefilePrivilege	3012	Explorer.EXE
Token: SeShutdownPrivilege	3012	Explorer.EXE
Token: SeCreatePagefilePrivilege	3012	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE
3012 Explorer.EXE

pid	process
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE
3012	Explorer.EXE

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

arrival notice.exeExplorer.EXE

description	pid	process	target process
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3980 wrote to memory of 2680	3980	arrival notice.exe	arrival notice.exe
PID 3012 wrote to memory of 744	3012	Explorer.EXE	svchost.exe
PID 3012 wrote to memory of 744	3012	Explorer.EXE	svchost.exe
PID 3012 wrote to memory of 744	3012	Explorer.EXE	svchost.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3012

C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
"C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3980

C:\Users\Admin\AppData\Local\Temp\arrival notice.exe
"C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2680

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3936

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1624

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1664

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3788

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3744

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3148

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
PID:744

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\arrival notice.exe"
3⤵
PID:3916

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/744-131-0x0000000000A20000-0x0000000000A2C000-memory.dmp

Filesize
48KB

Download
memory/744-132-0x0000000000950000-0x0000000000979000-memory.dmp

Filesize
164KB

Download
memory/744-130-0x0000000000000000-mapping.dmp

Download
memory/2680-126-0x000000000041D470-mapping.dmp

Download
memory/2680-127-0x00000000018D0000-0x0000000001BF0000-memory.dmp

Filesize
3.1MB

Download
memory/2680-128-0x0000000001D20000-0x0000000001D31000-memory.dmp

Filesize
68KB

Download
memory/2680-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3012-129-0x0000000000410000-0x00000000004E3000-memory.dmp

Filesize
844KB

Download
memory/3980-120-0x0000000005200000-0x00000000056FE000-memory.dmp

Filesize
5.0MB

Download
memory/3980-124-0x000000000B0D0000-0x000000000B0FB000-memory.dmp

Filesize
172KB

Download
memory/3980-123-0x0000000008960000-0x00000000089BC000-memory.dmp

Filesize
368KB

Download
memory/3980-122-0x00000000087C0000-0x00000000087C1000-memory.dmp

Filesize
4KB

Download
memory/3980-121-0x0000000005290000-0x0000000005297000-memory.dmp

Filesize
28KB

Download
memory/3980-115-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/3980-119-0x00000000051A0000-0x00000000051A1000-memory.dmp

Filesize
4KB

Download
memory/3980-118-0x00000000052A0000-0x00000000052A1000-memory.dmp

Filesize
4KB

Download
memory/3980-117-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads