xloader | 2ec4c1f1ffef7845a945dc1ad00d3e3f866a719c2d876847f1d2956fdf0197b7

General

Target

tmp.exe
Size

832KB
MD5

9ceab445695962b97fc520ca612c9d7d
SHA1

86a4e71153fe818d34ac165923819f1277c115d9
SHA256

2ec4c1f1ffef7845a945dc1ad00d3e3f866a719c2d876847f1d2956fdf0197b7
SHA512

297035591f3690ff7327d49b6bb25523169427b02c9011654f7f904b9541573754342c0615e65971c04588ebb2a6e1fe42c0e2fd37ed6b1ae669fb78809cae74

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/1976-63-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral1/memory/1976-64-0x00000000004202C0-mapping.dmp	xloader
behavioral1/memory/1976-70-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral1/memory/1648-73-0x0000000000080000-0x00000000000AD000-memory.dmp	xloader
behavioral1/memory/1648-77-0x0000000000080000-0x00000000000AD000-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-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation tmp.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1760 cmd.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	tmp.exe

pid	process
1760	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.execmmon32.exe

description	pid	process	target process
PID 1236 set thread context of 1976	1236	tmp.exe	tmp.exe
PID 1976 set thread context of 1204	1976	tmp.exe	Explorer.EXE
PID 1648 set thread context of 1204	1648	cmmon32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

tmp.execmmon32.exe

pid	process
1976	tmp.exe
1976	tmp.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe
1648	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.execmmon32.exe

pid process

1976 tmp.exe
1976 tmp.exe
1976 tmp.exe
1648 cmmon32.exe
1648 cmmon32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

tmp.execmmon32.exe

description pid process

Token: SeDebugPrivilege 1976 tmp.exe
Token: SeDebugPrivilege 1648 cmmon32.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

description	pid	process
Token: SeDebugPrivilege	1976	tmp.exe
Token: SeDebugPrivilege	1648	cmmon32.exe

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

tmp.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1236 wrote to memory of 1976	1236	tmp.exe	tmp.exe
PID 1204 wrote to memory of 1648	1204	Explorer.EXE	cmmon32.exe
PID 1204 wrote to memory of 1648	1204	Explorer.EXE	cmmon32.exe
PID 1204 wrote to memory of 1648	1204	Explorer.EXE	cmmon32.exe
PID 1204 wrote to memory of 1648	1204	Explorer.EXE	cmmon32.exe
PID 1648 wrote to memory of 1760	1648	cmmon32.exe	cmd.exe
PID 1648 wrote to memory of 1760	1648	cmmon32.exe	cmd.exe
PID 1648 wrote to memory of 1760	1648	cmmon32.exe	cmd.exe
PID 1648 wrote to memory of 1760	1648	cmmon32.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:1204

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:1236

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:1976

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Deletes itself
PID:1760

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/1204-78-0x0000000004B70000-0x0000000004C77000-memory.dmp

Filesize
1.0MB

Download
memory/1204-68-0x0000000006700000-0x000000000684B000-memory.dmp

Filesize
1.3MB

Download
memory/1204-76-0x0000000004B70000-0x0000000004C77000-memory.dmp

Filesize
1.0MB

Download
memory/1236-57-0x0000000000460000-0x000000000046E000-memory.dmp

Filesize
56KB

Download
memory/1236-58-0x0000000000B80000-0x0000000000BF6000-memory.dmp

Filesize
472KB

Download
memory/1236-59-0x0000000000B10000-0x0000000000B42000-memory.dmp

Filesize
200KB

Download
memory/1236-54-0x0000000001020000-0x00000000010F6000-memory.dmp

Filesize
856KB

Download
memory/1236-56-0x00000000003E0000-0x0000000000400000-memory.dmp

Filesize
128KB

Download
memory/1236-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1648-77-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1648-75-0x0000000001D90000-0x0000000001E20000-memory.dmp

Filesize
576KB

Download
memory/1648-74-0x0000000001F80000-0x0000000002283000-memory.dmp

Filesize
3.0MB

Download
memory/1648-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1648-72-0x00000000008A0000-0x00000000008AD000-memory.dmp

Filesize
52KB

Download
memory/1648-69-0x0000000000000000-mapping.dmp

Download
memory/1760-71-0x0000000000000000-mapping.dmp

Download
memory/1976-70-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1976-67-0x0000000000270000-0x0000000000281000-memory.dmp

Filesize
68KB

Download
memory/1976-66-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1976-64-0x00000000004202C0-mapping.dmp

Download
memory/1976-63-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1976-61-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1976-60-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads