xloader | 4d0bc62fb924d6a3ba487e61f69d9cd71c3e231ace06a3c1ce151c27a55d7a3c

General

Target

DOC.exe
Size

463KB
MD5

e2e027360aa11a532949fb6c013009d5
SHA1

2488a833ee33ea4ce3ff0e5e7615e35d647816e2
SHA256

13c2ff62d1e29d6e88c828851f842b17acb6293da92bdf5223e87a67bf00ed31
SHA512

240a63a3c245d1dd963cc33b290796e646276f9488692037f26009efde4ad39b9c6af6d0c4d21ca19b5ade4a677b4b2d7e83003a519c2dbfbf408c086ca0f04a

Score

10^/10

xloader n58i loader rat

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4820-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4820-126-0x000000000041D470-mapping.dmp	xloader
behavioral2/memory/4864-132-0x0000000000A50000-0x0000000000A79000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

DOC.exeDOC.exechkdsk.exe

description	pid	process	target process
PID 4720 set thread context of 4820	4720	DOC.exe	DOC.exe
PID 4820 set thread context of 3008	4820	DOC.exe	Explorer.EXE
PID 4864 set thread context of 3008	4864	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

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 46 IoCs

Processes:

DOC.exechkdsk.exe

pid	process
4820	DOC.exe
4820	DOC.exe
4820	DOC.exe
4820	DOC.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe
4864	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

DOC.exechkdsk.exe

pid process

4820 DOC.exe
4820 DOC.exe
4820 DOC.exe
4864 chkdsk.exe
4864 chkdsk.exe

pid	process
3008	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

DOC.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4820	DOC.exe
Token: SeDebugPrivilege	4864	chkdsk.exe
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE
Token: SeShutdownPrivilege	3008	Explorer.EXE
Token: SeCreatePagefilePrivilege	3008	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE
3008 Explorer.EXE

pid	process
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE
3008	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DOC.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 4720 wrote to memory of 4820	4720	DOC.exe	DOC.exe
PID 3008 wrote to memory of 4864	3008	Explorer.EXE	chkdsk.exe
PID 3008 wrote to memory of 4864	3008	Explorer.EXE	chkdsk.exe
PID 3008 wrote to memory of 4864	3008	Explorer.EXE	chkdsk.exe
PID 4864 wrote to memory of 4900	4864	chkdsk.exe	cmd.exe
PID 4864 wrote to memory of 4900	4864	chkdsk.exe	cmd.exe
PID 4864 wrote to memory of 4900	4864	chkdsk.exe	cmd.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:3008

C:\Users\Admin\AppData\Local\Temp\DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DOC.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4720

C:\Users\Admin\AppData\Local\Temp\DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DOC.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4820

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:4864

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\DOC.exe"
3⤵
PID:4900

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/3008-129-0x00000000057D0000-0x000000000590F000-memory.dmp

Filesize
1.2MB

Download
memory/3008-136-0x0000000005910000-0x0000000005A69000-memory.dmp

Filesize
1.3MB

Download
memory/4720-117-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/4720-118-0x0000000005020000-0x0000000005021000-memory.dmp

Filesize
4KB

Download
memory/4720-119-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/4720-120-0x00000000050C0000-0x00000000050C1000-memory.dmp

Filesize
4KB

Download
memory/4720-121-0x0000000005640000-0x0000000005647000-memory.dmp

Filesize
28KB

Download
memory/4720-122-0x00000000097B0000-0x00000000097B1000-memory.dmp

Filesize
4KB

Download
memory/4720-123-0x0000000009CD0000-0x0000000009D30000-memory.dmp

Filesize
384KB

Download
memory/4720-124-0x0000000009D70000-0x0000000009D9B000-memory.dmp

Filesize
172KB

Download
memory/4720-115-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download
memory/4820-126-0x000000000041D470-mapping.dmp

Download
memory/4820-127-0x00000000015D0000-0x00000000018F0000-memory.dmp

Filesize
3.1MB

Download
memory/4820-128-0x0000000001910000-0x0000000001921000-memory.dmp

Filesize
68KB

Download
memory/4820-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4864-130-0x0000000000000000-mapping.dmp

Download
memory/4864-132-0x0000000000A50000-0x0000000000A79000-memory.dmp

Filesize
164KB

Download
memory/4864-131-0x0000000000BE0000-0x0000000000BEA000-memory.dmp

Filesize
40KB

Download
memory/4864-133-0x0000000004BF0000-0x0000000004D3A000-memory.dmp

Filesize
1.3MB

Download
memory/4864-135-0x0000000004FE0000-0x0000000005070000-memory.dmp

Filesize
576KB

Download
memory/4900-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads