xloader | 42dacd96a068e6abe4d5a8ad49eb9ce09f81050257c2b75f08f3b1c43c7196d3

General

Target

DOC.exe
Size

480KB
MD5

66fc712a2dc1321fa0fc6bdf8bcd82a5
SHA1

7870ac22e3c8233430e0c5df62c72397f29e1294
SHA256

b092672d7f36d3deaab664c0a562b055f9cee3f247328e639aca58f025f979ca
SHA512

d0c101943eb61750234a838e1c5b2571996c64c5f0800272656d74e79dd60e9737e3c5326978ff6dacdd32bde71b88b46e0b4b9e87cde7e09f1246bb3667e7d7

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/3756-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3756-125-0x000000000041D470-mapping.dmp	xloader
behavioral2/memory/3268-133-0x00000000049C0000-0x00000000049E9000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

DOC.exeRegSvcs.exechkdsk.exe

description	pid	process	target process
PID 664 set thread context of 3756	664	DOC.exe	RegSvcs.exe
PID 3756 set thread context of 3024	3756	RegSvcs.exe	Explorer.EXE
PID 3756 set thread context of 3024	3756	RegSvcs.exe	Explorer.EXE
PID 3268 set thread context of 3024	3268	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 44 IoCs

Processes:

DOC.exeRegSvcs.exechkdsk.exe

pid	process
664	DOC.exe
664	DOC.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe
3268	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid process

3756 RegSvcs.exe
3756 RegSvcs.exe
3756 RegSvcs.exe
3756 RegSvcs.exe
3268 chkdsk.exe
3268 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DOC.exeRegSvcs.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 664 DOC.exe
Token: SeDebugPrivilege 3756 RegSvcs.exe
Token: SeDebugPrivilege 3268 chkdsk.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE

pid	process
3024	Explorer.EXE

pid	process
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3756	RegSvcs.exe
3268	chkdsk.exe
3268	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	664	DOC.exe
Token: SeDebugPrivilege	3756	RegSvcs.exe
Token: SeDebugPrivilege	3268	chkdsk.exe

pid	process
3024	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DOC.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 664 wrote to memory of 3756	664	DOC.exe	RegSvcs.exe
PID 3024 wrote to memory of 3268	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 3268	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 3268	3024	Explorer.EXE	chkdsk.exe
PID 3268 wrote to memory of 4016	3268	chkdsk.exe	cmd.exe
PID 3268 wrote to memory of 4016	3268	chkdsk.exe	cmd.exe
PID 3268 wrote to memory of 4016	3268	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\DOC.exe
"C:\Users\Admin\AppData\Local\Temp\DOC.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:664

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3756

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:3268

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:4016

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/664-123-0x000000000C7D0000-0x000000000C7FC000-memory.dmp

Filesize
176KB

Download
memory/664-119-0x0000000005210000-0x000000000570E000-memory.dmp

Filesize
5.0MB

Download
memory/664-122-0x0000000009F20000-0x0000000009F82000-memory.dmp

Filesize
392KB

Download
memory/664-118-0x0000000005250000-0x0000000005251000-memory.dmp

Filesize
4KB

Download
memory/664-116-0x0000000005710000-0x0000000005711000-memory.dmp

Filesize
4KB

Download
memory/664-120-0x00000000056E0000-0x00000000056E7000-memory.dmp

Filesize
28KB

Download
memory/664-121-0x00000000099E0000-0x00000000099E1000-memory.dmp

Filesize
4KB

Download
memory/664-114-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/664-117-0x00000000052B0000-0x00000000052B1000-memory.dmp

Filesize
4KB

Download
memory/3024-137-0x0000000005E30000-0x0000000005FAD000-memory.dmp

Filesize
1.5MB

Download
memory/3024-128-0x0000000005CB0000-0x0000000005D99000-memory.dmp

Filesize
932KB

Download
memory/3024-130-0x0000000002630000-0x00000000026EC000-memory.dmp

Filesize
752KB

Download
memory/3268-136-0x0000000004D90000-0x0000000004E20000-memory.dmp

Filesize
576KB

Download
memory/3268-133-0x00000000049C0000-0x00000000049E9000-memory.dmp

Filesize
164KB

Download
memory/3268-134-0x0000000004EA0000-0x00000000051C0000-memory.dmp

Filesize
3.1MB

Download
memory/3268-132-0x0000000000160000-0x000000000016A000-memory.dmp

Filesize
40KB

Download
memory/3268-131-0x0000000000000000-mapping.dmp

Download
memory/3756-125-0x000000000041D470-mapping.dmp

Download
memory/3756-129-0x0000000003050000-0x0000000003061000-memory.dmp

Filesize
68KB

Download
memory/3756-126-0x0000000001340000-0x0000000001660000-memory.dmp

Filesize
3.1MB

Download
memory/3756-127-0x00000000017B0000-0x00000000017C1000-memory.dmp

Filesize
68KB

Download
memory/3756-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4016-135-0x0000000000000000-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