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
behavioral1/memory/1608-66-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1608-67-0x000000000041D0C0-mapping.dmp	xloader
behavioral1/memory/1668-76-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1052 cmd.exe

pid	process
1052	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

winlog.exewinlog.exeraserver.exe

description	pid	process	target process
PID 1948 set thread context of 1608	1948	winlog.exe	winlog.exe
PID 1608 set thread context of 1208	1608	winlog.exe	Explorer.EXE
PID 1668 set thread context of 1208	1668	raserver.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

winlog.exeraserver.exe

pid	process
1608	winlog.exe
1608	winlog.exe
1668	raserver.exe
1668	raserver.exe
1668	raserver.exe
1668	raserver.exe
1668	raserver.exe
1668	raserver.exe
1668	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

winlog.exeraserver.exe

pid process

1608 winlog.exe
1608 winlog.exe
1608 winlog.exe
1668 raserver.exe
1668 raserver.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

winlog.exeraserver.exe

description pid process

Token: SeDebugPrivilege 1608 winlog.exe
Token: SeDebugPrivilege 1668 raserver.exe

description	pid	process
Token: SeDebugPrivilege	1608	winlog.exe
Token: SeDebugPrivilege	1668	raserver.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

winlog.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1948 wrote to memory of 1608	1948	winlog.exe	winlog.exe
PID 1208 wrote to memory of 1668	1208	Explorer.EXE	raserver.exe
PID 1208 wrote to memory of 1668	1208	Explorer.EXE	raserver.exe
PID 1208 wrote to memory of 1668	1208	Explorer.EXE	raserver.exe
PID 1208 wrote to memory of 1668	1208	Explorer.EXE	raserver.exe
PID 1668 wrote to memory of 1052	1668	raserver.exe	cmd.exe
PID 1668 wrote to memory of 1052	1668	raserver.exe	cmd.exe
PID 1668 wrote to memory of 1052	1668	raserver.exe	cmd.exe
PID 1668 wrote to memory of 1052	1668	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\winlog.exe
  "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1948
- - 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:1608
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1668
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\winlog.exe"
    3⤵
    - Deletes itself
    PID:1052

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1052-77-0x0000000000000000-mapping.dmp

Download
memory/1208-79-0x0000000003B20000-0x0000000003BCC000-memory.dmp

Filesize
688KB

Download
memory/1208-71-0x0000000006150000-0x0000000006288000-memory.dmp

Filesize
1.2MB

Download
memory/1608-70-0x00000000000B0000-0x00000000000C0000-memory.dmp

Filesize
64KB

Download
memory/1608-69-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/1608-66-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1608-67-0x000000000041D0C0-mapping.dmp

Download
memory/1668-74-0x00000000001E0000-0x00000000001FC000-memory.dmp

Filesize
112KB

Download
memory/1668-72-0x0000000000000000-mapping.dmp

Download
memory/1668-73-0x0000000075511000-0x0000000075513000-memory.dmp

Filesize
8KB

Download
memory/1668-75-0x0000000001FE0000-0x00000000022E3000-memory.dmp

Filesize
3.0MB

Download
memory/1668-76-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1668-78-0x0000000001D50000-0x0000000001DDF000-memory.dmp

Filesize
572KB

Download
memory/1948-65-0x0000000000A50000-0x0000000000A80000-memory.dmp

Filesize
192KB

Download
memory/1948-64-0x0000000005050000-0x00000000050C7000-memory.dmp

Filesize
476KB

Download
memory/1948-60-0x0000000000F50000-0x0000000000F51000-memory.dmp

Filesize
4KB

Download
memory/1948-63-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/1948-62-0x0000000004D70000-0x0000000004D71000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads