xloader | 321bb25b6b169c5cb108a2b1a16f5fb82307059d5876201e19cc93bf425d2616

General

Target

PURCHASE ORDER.exe
Size

259KB
MD5

546df2d5873be9fa50c683930a40905c
SHA1

3455d5e3a61dd5192051227ab984a3fc992717a0
SHA256

321bb25b6b169c5cb108a2b1a16f5fb82307059d5876201e19cc93bf425d2616
SHA512

1a81f73ed431ab02697ab34772ac2bcada9e90d0fa6c8d22e5b66940e64871428f3eb9b9d3d8889e1b1f924e53933bebf7eb748bb4c9b708b701f83a1a6ade82

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.onyxcomputing.com/u8nw/

Decoy

constructionjadams.com

organicwellnessfarm.com

beautiful.tours

medvows.com

foxparanormal.com

fsmxmc.com

graniterealestategroup.net

qgi1.com

astrologicsolutions.com

rafbar.com

bastiontools.net

emotist.com

stacyleets.com

bloodtypealpha.com

healtybenenfitsplus.com

vavadadoa3.com

chefbenhk.com

dotgz.com

xn--z4qm188e645c.com

ethyi.com

Signatures

Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1468-64-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1804-72-0x0000000000110000-0x0000000000139000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1604 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

PURCHASE ORDER.exe

pid process

1096 PURCHASE ORDER.exe

pid	process
1604	cmd.exe

pid	process
1096	PURCHASE ORDER.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.exemstsc.exe

description	pid	process	target process
PID 1096 set thread context of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1468 set thread context of 1256	1468	PURCHASE ORDER.exe	Explorer.EXE
PID 1804 set thread context of 1256	1804	mstsc.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

PURCHASE ORDER.exemstsc.exe

pid	process
1468	PURCHASE ORDER.exe
1468	PURCHASE ORDER.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe
1804	mstsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

PURCHASE ORDER.exePURCHASE ORDER.exemstsc.exe

pid process

1096 PURCHASE ORDER.exe
1468 PURCHASE ORDER.exe
1468 PURCHASE ORDER.exe
1468 PURCHASE ORDER.exe
1804 mstsc.exe
1804 mstsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

PURCHASE ORDER.exemstsc.exe

description pid process

Token: SeDebugPrivilege 1468 PURCHASE ORDER.exe
Token: SeDebugPrivilege 1804 mstsc.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE
1256 Explorer.EXE

pid	process
1256	Explorer.EXE

pid	process
1096	PURCHASE ORDER.exe
1468	PURCHASE ORDER.exe
1468	PURCHASE ORDER.exe
1468	PURCHASE ORDER.exe
1804	mstsc.exe
1804	mstsc.exe

description	pid	process
Token: SeDebugPrivilege	1468	PURCHASE ORDER.exe
Token: SeDebugPrivilege	1804	mstsc.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

PURCHASE ORDER.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 1096 wrote to memory of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1096 wrote to memory of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1096 wrote to memory of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1096 wrote to memory of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1096 wrote to memory of 1468	1096	PURCHASE ORDER.exe	PURCHASE ORDER.exe
PID 1256 wrote to memory of 1804	1256	Explorer.EXE	mstsc.exe
PID 1256 wrote to memory of 1804	1256	Explorer.EXE	mstsc.exe
PID 1256 wrote to memory of 1804	1256	Explorer.EXE	mstsc.exe
PID 1256 wrote to memory of 1804	1256	Explorer.EXE	mstsc.exe
PID 1804 wrote to memory of 1604	1804	mstsc.exe	cmd.exe
PID 1804 wrote to memory of 1604	1804	mstsc.exe	cmd.exe
PID 1804 wrote to memory of 1604	1804	mstsc.exe	cmd.exe
PID 1804 wrote to memory of 1604	1804	mstsc.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1256

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1096

C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
"C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1468

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
3⤵
- Deletes itself
PID:1604

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nss244.tmp\dz3e8y2bzld.dll

MD5
5bc56f8d671fcc94d3b18207584c5988

SHA1
1eb13372c26860d78f548e4af655396fb247a4a7

SHA256
fa909c09fea41fd8c3a7e911233533fb4a8a5161d0795d6abf3ef3dc280717ad

SHA512
f7c8c7ac96673a5788cae02ac1dbe370afc3a87f9f79174a1fd791c251be0e4e5a94069c30122e039a67d934253e8c59214dcd559dbb1d4623f42e30bdef96b5

Download Submit
memory/1096-60-0x00000000768B1000-0x00000000768B3000-memory.dmp

Filesize
8KB

Download
memory/1096-63-0x0000000001C70000-0x0000000001C72000-memory.dmp

Filesize
8KB

Download
memory/1256-75-0x0000000004D90000-0x0000000004E2D000-memory.dmp

Filesize
628KB

Download
memory/1256-67-0x0000000004EB0000-0x000000000501C000-memory.dmp

Filesize
1.4MB

Download
memory/1468-65-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/1468-66-0x0000000000270000-0x0000000000280000-memory.dmp

Filesize
64KB

Download
memory/1468-64-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1468-62-0x000000000041D0C0-mapping.dmp

Download
memory/1604-70-0x0000000000000000-mapping.dmp

Download
memory/1804-68-0x0000000000000000-mapping.dmp

Download
memory/1804-71-0x0000000000390000-0x0000000000494000-memory.dmp

Filesize
1.0MB

Download
memory/1804-72-0x0000000000110000-0x0000000000139000-memory.dmp

Filesize
164KB

Download
memory/1804-73-0x00000000020B0000-0x00000000023B3000-memory.dmp

Filesize
3.0MB

Download
memory/1804-74-0x0000000001F90000-0x000000000201F000-memory.dmp

Filesize
572KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads