xloader | 9ed84f9f973b347f43b51d079a97623f4cc9f6d5a7b793e1593f26207101af3c

General

Target

winlog.exe
Size

696KB
MD5

5d2f26ac6b48725279d98aa87eff8506
SHA1

7ab3874eb9d316a503133367b12d3628e6dbe264
SHA256

06bed76c389db454d5b86a64bf7127a21c013b48d79b3b83511263c424f5cf65
SHA512

e81c607ee870bde0e5a84714f1634e19f6959d1f46a4d5ffea2baeba241712ca4f2e2bdf4f6c8794db7b35216ded5d52743b7faac75d3382dd58f88e24294e41

Score

10^/10

xloader loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.zlzntiayc.icu/a6ru/

Decoy

noseainsight.com

chateaudedigoine.com

tezhonda.com

lowergwyeneddmassage.com

convenienttext.com

quickbookaccountingpros.com

mashburneventcenter.com

marthabymsfashion.com

thearcadela.com

invisiblefingerprint.com

nikadoo.com

artsmartclinton.com

elitetouringinnovations.com

atualizarapp2020.com

nideke1.com

fyj-sh.com

rufflesales.com

algemixdelchef.com

appleoneplus.com

ryosuketanikawa.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3056-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3056-126-0x000000000041D0C0-mapping.dmp	xloader
behavioral2/memory/4008-133-0x0000000000320000-0x0000000000349000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

winlog.exewinlog.exeNETSTAT.EXE

description	pid	process	target process
PID 3916 set thread context of 3056	3916	winlog.exe	winlog.exe
PID 3056 set thread context of 2824	3056	winlog.exe	Explorer.EXE
PID 4008 set thread context of 2824	4008	NETSTAT.EXE	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

4008 NETSTAT.EXE

pid	process
4008	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

winlog.exewinlog.exeNETSTAT.EXE

pid	process
3916	winlog.exe
3916	winlog.exe
3056	winlog.exe
3056	winlog.exe
3056	winlog.exe
3056	winlog.exe
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE
4008	NETSTAT.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

winlog.exeNETSTAT.EXE

pid process

3056 winlog.exe
3056 winlog.exe
3056 winlog.exe
4008 NETSTAT.EXE
4008 NETSTAT.EXE
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

winlog.exewinlog.exeNETSTAT.EXE

description pid process

Token: SeDebugPrivilege 3916 winlog.exe
Token: SeDebugPrivilege 3056 winlog.exe
Token: SeDebugPrivilege 4008 NETSTAT.EXE

pid	process
3056	winlog.exe
3056	winlog.exe
3056	winlog.exe
4008	NETSTAT.EXE
4008	NETSTAT.EXE

description	pid	process
Token: SeDebugPrivilege	3916	winlog.exe
Token: SeDebugPrivilege	3056	winlog.exe
Token: SeDebugPrivilege	4008	NETSTAT.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

winlog.exeExplorer.EXENETSTAT.EXE

description	pid	process	target process
PID 3916 wrote to memory of 2752	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 2752	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 2752	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 3916 wrote to memory of 3056	3916	winlog.exe	winlog.exe
PID 2824 wrote to memory of 4008	2824	Explorer.EXE	NETSTAT.EXE
PID 2824 wrote to memory of 4008	2824	Explorer.EXE	NETSTAT.EXE
PID 2824 wrote to memory of 4008	2824	Explorer.EXE	NETSTAT.EXE
PID 4008 wrote to memory of 1904	4008	NETSTAT.EXE	cmd.exe
PID 4008 wrote to memory of 1904	4008	NETSTAT.EXE	cmd.exe
PID 4008 wrote to memory of 1904	4008	NETSTAT.EXE	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:2824
- C:\Users\Admin\AppData\Local\Temp\winlog.exe
  "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3916
- - C:\Users\Admin\AppData\Local\Temp\winlog.exe
    "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
    3⤵
    PID:2752
- - C:\Users\Admin\AppData\Local\Temp\winlog.exe
    "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3056
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4008
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
    3⤵
    PID:1904

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1904-135-0x0000000000000000-mapping.dmp

Download
memory/2824-137-0x0000000002DF0000-0x0000000002EAF000-memory.dmp

Filesize
764KB

Download
memory/2824-130-0x0000000006B70000-0x0000000006D03000-memory.dmp

Filesize
1.6MB

Download
memory/3056-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3056-129-0x0000000001170000-0x0000000001180000-memory.dmp

Filesize
64KB

Download
memory/3056-128-0x0000000001720000-0x0000000001A40000-memory.dmp

Filesize
3.1MB

Download
memory/3056-126-0x000000000041D0C0-mapping.dmp

Download
memory/3916-120-0x00000000058A0000-0x00000000058A1000-memory.dmp

Filesize
4KB

Download
memory/3916-118-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/3916-124-0x0000000008860000-0x0000000008890000-memory.dmp

Filesize
192KB

Download
memory/3916-122-0x0000000005640000-0x000000000564E000-memory.dmp

Filesize
56KB

Download
memory/3916-121-0x00000000055C0000-0x0000000005652000-memory.dmp

Filesize
584KB

Download
memory/3916-114-0x0000000000C70000-0x0000000000C71000-memory.dmp

Filesize
4KB

Download
memory/3916-119-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/3916-123-0x00000000014F0000-0x0000000001567000-memory.dmp

Filesize
476KB

Download
memory/3916-116-0x0000000003090000-0x0000000003091000-memory.dmp

Filesize
4KB

Download
memory/3916-117-0x0000000005C40000-0x0000000005C41000-memory.dmp

Filesize
4KB

Download
memory/4008-134-0x0000000002EE0000-0x0000000003200000-memory.dmp

Filesize
3.1MB

Download
memory/4008-132-0x0000000000ED0000-0x0000000000EDB000-memory.dmp

Filesize
44KB

Download
memory/4008-133-0x0000000000320000-0x0000000000349000-memory.dmp

Filesize
164KB

Download
memory/4008-136-0x0000000000B20000-0x0000000000BAF000-memory.dmp

Filesize
572KB

Download
memory/4008-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads