xloader | a9aa59bed8eb3e4839b215c072549c359c3867b238e65c4bf98a5f274d2808bb

General

Target

tmp.exe
Size

635KB
MD5

2648e55802ea0888fea42a50ff7443a9
SHA1

1de56299bfca5e0417263ba8954a925f6d5cf8fb
SHA256

a9aa59bed8eb3e4839b215c072549c359c3867b238e65c4bf98a5f274d2808bb
SHA512

ecbcfd564144f225250309786f1e828383e8e524c75b548990b6aa739e8cf794ac7d076fa93e8da3abc512ec747092623cc44676de25fb373163754750b8a08f

Score

10^/10

xloader loader rat suricata

Malware Config

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 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1708-65-0x0000000000420280-mapping.dmp	xloader
behavioral1/memory/1708-64-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral1/memory/1708-67-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral1/memory/2020-74-0x0000000000080000-0x00000000000AD000-memory.dmp	xloader
behavioral1/memory/2020-78-0x0000000000080000-0x00000000000AD000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

tmp.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation tmp.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1652 cmd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	tmp.exe

pid	process
1652	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.exesystray.exe

description	pid	process	target process
PID 1052 set thread context of 1708	1052	tmp.exe	tmp.exe
PID 1708 set thread context of 1212	1708	tmp.exe	Explorer.EXE
PID 2020 set thread context of 1212	2020	systray.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

tmp.exesystray.exe

pid	process
1708	tmp.exe
1708	tmp.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe
2020	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.exesystray.exe

pid process

1708 tmp.exe
1708 tmp.exe
1708 tmp.exe
2020 systray.exe
2020 systray.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.exesystray.exe

description pid process

Token: SeDebugPrivilege 1708 tmp.exe
Token: SeDebugPrivilege 2020 systray.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1212 Explorer.EXE
1212 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1708	tmp.exe
Token: SeDebugPrivilege	2020	systray.exe

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

pid	process
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1052 wrote to memory of 1708	1052	tmp.exe	tmp.exe
PID 1212 wrote to memory of 2020	1212	Explorer.EXE	systray.exe
PID 1212 wrote to memory of 2020	1212	Explorer.EXE	systray.exe
PID 1212 wrote to memory of 2020	1212	Explorer.EXE	systray.exe
PID 1212 wrote to memory of 2020	1212	Explorer.EXE	systray.exe
PID 2020 wrote to memory of 1652	2020	systray.exe	cmd.exe
PID 2020 wrote to memory of 1652	2020	systray.exe	cmd.exe
PID 2020 wrote to memory of 1652	2020	systray.exe	cmd.exe
PID 2020 wrote to memory of 1652	2020	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1052

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1708

C:\Windows\SysWOW64\systray.exe
"C:\Windows\SysWOW64\systray.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Deletes itself
PID:1652

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

Loading Replay Monitor...

Downloads

memory/1052-54-0x0000000000D50000-0x0000000000DF4000-memory.dmp

Filesize
656KB

Download
memory/1052-55-0x0000000076C81000-0x0000000076C83000-memory.dmp

Filesize
8KB

Download
memory/1052-56-0x00000000022D0000-0x0000000002354000-memory.dmp

Filesize
528KB

Download
memory/1052-57-0x0000000000500000-0x0000000000520000-memory.dmp

Filesize
128KB

Download
memory/1052-58-0x0000000000630000-0x000000000063E000-memory.dmp

Filesize
56KB

Download
memory/1052-59-0x00000000046E0000-0x0000000004756000-memory.dmp

Filesize
472KB

Download
memory/1052-60-0x0000000000950000-0x0000000000982000-memory.dmp

Filesize
200KB

Download
memory/1212-79-0x0000000006020000-0x00000000060FA000-memory.dmp

Filesize
872KB

Download
memory/1212-77-0x0000000006020000-0x00000000060FA000-memory.dmp

Filesize
872KB

Download
memory/1212-70-0x0000000005F20000-0x0000000006014000-memory.dmp

Filesize
976KB

Download
memory/1652-72-0x0000000000000000-mapping.dmp

Download
memory/1708-68-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/1708-67-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1708-69-0x0000000000200000-0x0000000000211000-memory.dmp

Filesize
68KB

Download
memory/1708-64-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1708-65-0x0000000000420280-mapping.dmp

Download
memory/1708-62-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1708-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2020-71-0x0000000000000000-mapping.dmp

Download
memory/2020-73-0x0000000000810000-0x0000000000815000-memory.dmp

Filesize
20KB

Download
memory/2020-75-0x0000000002080000-0x0000000002383000-memory.dmp

Filesize
3.0MB

Download
memory/2020-74-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/2020-76-0x0000000001E40000-0x0000000001ED0000-memory.dmp

Filesize
576KB

Download
memory/2020-78-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads