xloader | 4d0bc62fb924d6a3ba487e61f69d9cd71c3e231ace06a3c1ce151c27a55d7a3c

General

Target

DOC.exe
Size

463KB
MD5

e2e027360aa11a532949fb6c013009d5
SHA1

2488a833ee33ea4ce3ff0e5e7615e35d647816e2
SHA256

13c2ff62d1e29d6e88c828851f842b17acb6293da92bdf5223e87a67bf00ed31
SHA512

240a63a3c245d1dd963cc33b290796e646276f9488692037f26009efde4ad39b9c6af6d0c4d21ca19b5ade4a677b4b2d7e83003a519c2dbfbf408c086ca0f04a

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
behavioral1/memory/2008-60-0x000000000041D470-mapping.dmp	xloader
behavioral1/memory/2008-59-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1456-68-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

cmstp.exe

flow pid process

9 1456 cmstp.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1888 cmd.exe

flow	pid	process
9	1456	cmstp.exe

pid	process
1888	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

DOC.exeDOC.execmstp.exe

description	pid	process	target process
PID 1908 set thread context of 2008	1908	DOC.exe	DOC.exe
PID 2008 set thread context of 1376	2008	DOC.exe	Explorer.EXE
PID 1456 set thread context of 1376	1456	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

DOC.execmstp.exe

pid	process
2008	DOC.exe
2008	DOC.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe
1456	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

DOC.execmstp.exe

pid process

2008 DOC.exe
2008 DOC.exe
2008 DOC.exe
1456 cmstp.exe
1456 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DOC.execmstp.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 2008 DOC.exe
Token: SeDebugPrivilege 1456 cmstp.exe
Token: SeShutdownPrivilege 1376 Explorer.EXE
Suspicious use of FindShellTrayWindow 7 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
Suspicious use of SendNotifyMessage 6 IoCs

Processes:

Explorer.EXE

pid process

1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE
1376 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2008	DOC.exe
Token: SeDebugPrivilege	1456	cmstp.exe
Token: SeShutdownPrivilege	1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

pid	process
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE
1376	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

DOC.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1908 wrote to memory of 2008	1908	DOC.exe	DOC.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1376 wrote to memory of 1456	1376	Explorer.EXE	cmstp.exe
PID 1456 wrote to memory of 1888	1456	cmstp.exe	cmd.exe
PID 1456 wrote to memory of 1888	1456	cmstp.exe	cmd.exe
PID 1456 wrote to memory of 1888	1456	cmstp.exe	cmd.exe
PID 1456 wrote to memory of 1888	1456	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1376

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:1908

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:2008

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\DOC.exe"
3⤵
- Deletes itself
PID:1888

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1376-72-0x0000000002590000-0x00000000025A0000-memory.dmp

Filesize
64KB

Download
memory/1376-71-0x0000000006A40000-0x0000000006B8F000-memory.dmp

Filesize
1.3MB

Download
memory/1376-63-0x0000000004F20000-0x000000000501F000-memory.dmp

Filesize
1020KB

Download
memory/1456-64-0x0000000000000000-mapping.dmp

Download
memory/1456-70-0x0000000000480000-0x0000000000510000-memory.dmp

Filesize
576KB

Download
memory/1456-69-0x0000000001FD0000-0x00000000022D3000-memory.dmp

Filesize
3.0MB

Download
memory/1456-68-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1456-67-0x0000000000A20000-0x0000000000A38000-memory.dmp

Filesize
96KB

Download
memory/1456-65-0x0000000075471000-0x0000000075473000-memory.dmp

Filesize
8KB

Download
memory/1888-66-0x0000000000000000-mapping.dmp

Download
memory/1908-58-0x0000000000900000-0x000000000092B000-memory.dmp

Filesize
172KB

Download
memory/1908-53-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download
memory/1908-57-0x0000000004EB0000-0x0000000004F10000-memory.dmp

Filesize
384KB

Download
memory/1908-56-0x00000000003B0000-0x00000000003B7000-memory.dmp

Filesize
28KB

Download
memory/1908-55-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2008-62-0x0000000000180000-0x0000000000191000-memory.dmp

Filesize
68KB

Download
memory/2008-61-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/2008-59-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2008-60-0x000000000041D470-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads