xloader | eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267

General

Target

Unpaid invoice.exe
Size

258KB
MD5

79c6ad84e9a64439531ef1197e68587b
SHA1

ce9360870150cba1c282b631d7257b5d1f740162
SHA256

eb4f57c9488afdfcae998056c4854f63c921e45d077c4a53fc6d927463ea5267
SHA512

c9b5a09b0f47c4cc9b0d9a6c3cc4d95b3dddf3dedcded68126e407f86e0e340b9c6b240589dfb2e94ae9863619b41862e10e0ac5e1bb86fd6e91cd8446c8ce2f

Score

10^/10

xloader b2c0 loader rat

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

b2c0

C2

http://www.thesewhitevvalls.com/b2c0/

Decoy

bjyxszd520.xyz

hsvfingerprinting.com

elliotpioneer.com

bf396.com

chinaopedia.com

6233v.com

shopeuphoricapparel.com

loccssol.store

truefictionpictures.com

playstarexch.com

peruviancoffee.store

shobhajoshi.com

philme.net

avito-rules.com

independencehomecenters.com

atp-cayenne.com

invetorsbank.com

sasanos.com

scentfreebnb.com

catfuid.com

Signatures

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

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1592-56-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1592-57-0x000000000041D4C0-mapping.dmp	xloader
behavioral1/memory/1592-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1548-68-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1124 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

Unpaid invoice.exe

pid process

852 Unpaid invoice.exe

pid	process
1124	cmd.exe

pid	process
852	Unpaid invoice.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Unpaid invoice.exeUnpaid invoice.exewlanext.exe

description	pid	process	target process
PID 852 set thread context of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 1592 set thread context of 1204	1592	Unpaid invoice.exe	Explorer.EXE
PID 1592 set thread context of 1204	1592	Unpaid invoice.exe	Explorer.EXE
PID 1548 set thread context of 1204	1548	wlanext.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 30 IoCs

Processes:

Unpaid invoice.exewlanext.exe

pid	process
1592	Unpaid invoice.exe
1592	Unpaid invoice.exe
1592	Unpaid invoice.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe
1548	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Unpaid invoice.exewlanext.exe

pid process

1592 Unpaid invoice.exe
1592 Unpaid invoice.exe
1592 Unpaid invoice.exe
1592 Unpaid invoice.exe
1548 wlanext.exe
1548 wlanext.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Unpaid invoice.exewlanext.exe

description pid process

Token: SeDebugPrivilege 1592 Unpaid invoice.exe
Token: SeDebugPrivilege 1548 wlanext.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE

pid	process
1204	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1592	Unpaid invoice.exe
Token: SeDebugPrivilege	1548	wlanext.exe

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Unpaid invoice.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 852 wrote to memory of 1592	852	Unpaid invoice.exe	Unpaid invoice.exe
PID 1204 wrote to memory of 1548	1204	Explorer.EXE	wlanext.exe
PID 1204 wrote to memory of 1548	1204	Explorer.EXE	wlanext.exe
PID 1204 wrote to memory of 1548	1204	Explorer.EXE	wlanext.exe
PID 1204 wrote to memory of 1548	1204	Explorer.EXE	wlanext.exe
PID 1548 wrote to memory of 1124	1548	wlanext.exe	cmd.exe
PID 1548 wrote to memory of 1124	1548	wlanext.exe	cmd.exe
PID 1548 wrote to memory of 1124	1548	wlanext.exe	cmd.exe
PID 1548 wrote to memory of 1124	1548	wlanext.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:1204

C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:852

C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1592

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1876

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1548

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Unpaid invoice.exe"
3⤵
- Deletes itself
PID:1124

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\nsdB2DC.tmp\luxel.dll
MD5
a0a058dd0d25e6c58d63fade1e71ed9b

SHA1
9fbd6ff0aa0ec59078a3c6184f8d4a2ca4efb245

SHA256
d42d9dc83208817a972e069772d43cfb0dc3a781cf337732c94106c3bb8bd859

SHA512
ec664ed0f069b305917dfab1aad6054dbe521b61c20d2b111657e45b184328bac0c37a1d54a5397a8f81ce44092585fab14998af738c1e37611df2a7a07dbcb9

Download Submit
memory/852-54-0x00000000768C1000-0x00000000768C3000-memory.dmp

Filesize
8KB

Download
memory/1124-66-0x0000000000000000-mapping.dmp

Download
memory/1204-71-0x0000000004C60000-0x0000000004D56000-memory.dmp

Filesize
984KB

Download
memory/1204-61-0x00000000049E0000-0x0000000004ABC000-memory.dmp

Filesize
880KB

Download
memory/1204-64-0x0000000004B50000-0x0000000004C51000-memory.dmp

Filesize
1.0MB

Download
memory/1548-70-0x0000000000660000-0x00000000006F0000-memory.dmp

Filesize
576KB

Download
memory/1548-69-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/1548-68-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1548-67-0x00000000001C0000-0x00000000001D6000-memory.dmp

Filesize
88KB

Download
memory/1548-65-0x0000000000000000-mapping.dmp

Download
memory/1592-60-0x00000000002C0000-0x00000000002D1000-memory.dmp

Filesize
68KB

Download
memory/1592-63-0x0000000000310000-0x0000000000321000-memory.dmp

Filesize
68KB

Download
memory/1592-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1592-59-0x00000000006F0000-0x00000000009F3000-memory.dmp

Filesize
3.0MB

Download
memory/1592-57-0x000000000041D4C0-mapping.dmp

Download
memory/1592-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads