xloader | 14a0af77c8fab65395925348cb39c058dd0e619e33055f6a3f895c295aaa6783

General

Target

Shipping-Docs.exe
Size

501KB
MD5

c865088690870930ec48ae54209e37a3
SHA1

b6bfc53eb8577cfafe3ef5670faf56e6b2f10a3c
SHA256

14a0af77c8fab65395925348cb39c058dd0e619e33055f6a3f895c295aaa6783
SHA512

d233fb9735eca4d18dc4a2642d2fcbeb386a5d5ffd480aa6e09a7b29567417b1ecf588dc004975c97b08dd3cd05dc7c48105b87804a8e37c8a1af649b95f653f

Score

10^/10

xloader gfv7 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

gfv7

Decoy

hd4AZDZ3XeSkZ9w0NRn2+JU=

6iAxmGKdumxFEgwp

jM6QcxNUSeCKaUdvvh3g9mffhosQ

d4CC0LS0DjTJS8FdXqd3soM=

S1LPlXEIJY52Og==

doeO7AimsF0NEvFgnIV5

W2TlzH/byHtUU3B7tw==

Y2RAbyZjex2qj6GQv4Q=

ftoOsCpZdfmALQ==

4kqL8v/6rDj8Ohs/wAjkb0gD5Gfiww==

8mVs/AkvwLnIWp4=

yfqAazgHioT8b9yHSKpLDtgY

EyWD5F+Wu3L0xq/VJXgdlnFvBDdUz5WM

jn9ty+pdRNdtcDhJ5k8nwZofm4EJ

s9XVNv4/aRDBUx4w

+vHFE7Fw1rnIWp4=

wC395Yvi6G/3yoWRGW1USxzshi3Dyw==

jcbufIN91gHAUK1RYUMYIdyqpDlUz5WM

iIyoIvZNXwPNmBlBxGk6+A==

C/hTD8h/KWLiMW4Mt/joXyz23Q==

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2684-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2684-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2396-145-0x0000000000650000-0x000000000067C000-memory.dmp	xloader
behavioral2/memory/2396-149-0x0000000000650000-0x000000000067C000-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:

Shipping-Docs.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Shipping-Docs.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping-Docs.exeShipping-Docs.exechkdsk.exe

description	pid	process	target process
PID 3484 set thread context of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 2684 set thread context of 892	2684	Shipping-Docs.exe	Explorer.EXE
PID 2396 set thread context of 892	2396	chkdsk.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
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes:

Shipping-Docs.exechkdsk.exe

pid	process
2684	Shipping-Docs.exe
2684	Shipping-Docs.exe
2684	Shipping-Docs.exe
2684	Shipping-Docs.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe
2396	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

892 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Shipping-Docs.exechkdsk.exe

pid process

2684 Shipping-Docs.exe
2684 Shipping-Docs.exe
2684 Shipping-Docs.exe
2396 chkdsk.exe
2396 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Shipping-Docs.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 2684 Shipping-Docs.exe
Token: SeDebugPrivilege 2396 chkdsk.exe

pid	process
892	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2684	Shipping-Docs.exe
Token: SeDebugPrivilege	2396	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Shipping-Docs.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 3484 wrote to memory of 2684	3484	Shipping-Docs.exe	Shipping-Docs.exe
PID 892 wrote to memory of 2396	892	Explorer.EXE	chkdsk.exe
PID 892 wrote to memory of 2396	892	Explorer.EXE	chkdsk.exe
PID 892 wrote to memory of 2396	892	Explorer.EXE	chkdsk.exe
PID 2396 wrote to memory of 3388	2396	chkdsk.exe	cmd.exe
PID 2396 wrote to memory of 3388	2396	chkdsk.exe	cmd.exe
PID 2396 wrote to memory of 3388	2396	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:892

C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3484

C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2684

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping-Docs.exe"
3⤵
PID:3388

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/892-141-0x0000000002550000-0x000000000266C000-memory.dmp

Filesize
1.1MB

Download
memory/892-150-0x0000000007BD0000-0x0000000007D59000-memory.dmp

Filesize
1.5MB

Download
memory/892-148-0x0000000007BD0000-0x0000000007D59000-memory.dmp

Filesize
1.5MB

Download
memory/2396-146-0x0000000000DA0000-0x00000000010EA000-memory.dmp

Filesize
3.3MB

Download
memory/2396-142-0x0000000000000000-mapping.dmp

Download
memory/2396-149-0x0000000000650000-0x000000000067C000-memory.dmp

Filesize
176KB

Download
memory/2396-147-0x0000000000C80000-0x0000000000D10000-memory.dmp

Filesize
576KB

Download
memory/2396-145-0x0000000000650000-0x000000000067C000-memory.dmp

Filesize
176KB

Download
memory/2396-144-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/2684-139-0x00000000016C0000-0x0000000001A0A000-memory.dmp

Filesize
3.3MB

Download
memory/2684-140-0x00000000016A0000-0x00000000016B1000-memory.dmp

Filesize
68KB

Download
memory/2684-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2684-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2684-135-0x0000000000000000-mapping.dmp

Download
memory/3388-143-0x0000000000000000-mapping.dmp

Download
memory/3484-133-0x0000000004D90000-0x0000000004E2C000-memory.dmp

Filesize
624KB

Download
memory/3484-134-0x0000000004C90000-0x0000000004C9A000-memory.dmp

Filesize
40KB

Download
memory/3484-130-0x0000000000260000-0x00000000002E4000-memory.dmp

Filesize
528KB

Download
memory/3484-132-0x0000000004CF0000-0x0000000004D82000-memory.dmp

Filesize
584KB

Download
memory/3484-131-0x0000000005200000-0x00000000057A4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads