xloader | 038022c6f5c04dba6aa5b9289461209678a511329ad714ac45b132ad64ab8d60

General

Target

b594d28ecd8be49f2ec9512008cfcbba.exe
Size

366KB
MD5

b594d28ecd8be49f2ec9512008cfcbba
SHA1

e6a3254ad46bd308832c2e4642c82151b61fe247
SHA256

038022c6f5c04dba6aa5b9289461209678a511329ad714ac45b132ad64ab8d60
SHA512

dfa5ae2e8d75ca8cb97ce4e5b21ecce36f5ed9267d40d886f9c810539871404276ea346f0d0b36a9dccf61bb1e292212325fc7625a583be212fc62058be849cf

Score

10^/10

xloader sk8m loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

sk8m

Decoy

cruisinforabluesin.net

elkntordo.quest

mtmoriginal.com

arespermire.quest

maisoulcolor.com

thegreekfarmerstaverna.com

midlife-fitness.com

uniquelyjessica.com

everybunnyeverybirdy.net

tryafaq.com

aandreashopp.com

selfyou.store

healthtradeusa.com

visiency.com

rainbowshopscom.com

raj-spostitve.com

jupiterflightband.com

haigui.ltd

theparentharbour.com

themutualfriend.com

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1988-58-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1988-59-0x000000000041D4A0-mapping.dmp	xloader
behavioral1/memory/1988-61-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1988-69-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1136-73-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader
behavioral1/memory/1136-77-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

b594d28ecd8be49f2ec9512008cfcbba.execvtres.exewininit.exe

description	pid	process	target process
PID 1732 set thread context of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1988 set thread context of 1256	1988	cvtres.exe	Explorer.EXE
PID 1988 set thread context of 1256	1988	cvtres.exe	Explorer.EXE
PID 1136 set thread context of 1256	1136	wininit.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

cvtres.exewininit.exe

pid	process
1988	cvtres.exe
1988	cvtres.exe
1988	cvtres.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe
1136	wininit.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

cvtres.exewininit.exe

pid process

1988 cvtres.exe
1988 cvtres.exe
1988 cvtres.exe
1988 cvtres.exe
1136 wininit.exe
1136 wininit.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.exewininit.exe

description pid process

Token: SeDebugPrivilege 1988 cvtres.exe
Token: SeDebugPrivilege 1136 wininit.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1256 Explorer.EXE
1256 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1988	cvtres.exe
Token: SeDebugPrivilege	1136	wininit.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

b594d28ecd8be49f2ec9512008cfcbba.exeExplorer.EXEwininit.exe

description	pid	process	target process
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1732 wrote to memory of 1988	1732	b594d28ecd8be49f2ec9512008cfcbba.exe	cvtres.exe
PID 1256 wrote to memory of 1136	1256	Explorer.EXE	wininit.exe
PID 1256 wrote to memory of 1136	1256	Explorer.EXE	wininit.exe
PID 1256 wrote to memory of 1136	1256	Explorer.EXE	wininit.exe
PID 1256 wrote to memory of 1136	1256	Explorer.EXE	wininit.exe
PID 1136 wrote to memory of 948	1136	wininit.exe	cmd.exe
PID 1136 wrote to memory of 948	1136	wininit.exe	cmd.exe
PID 1136 wrote to memory of 948	1136	wininit.exe	cmd.exe
PID 1136 wrote to memory of 948	1136	wininit.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:1256

C:\Users\Admin\AppData\Local\Temp\b594d28ecd8be49f2ec9512008cfcbba.exe
"C:\Users\Admin\AppData\Local\Temp\b594d28ecd8be49f2ec9512008cfcbba.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1988

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1160

C:\Windows\SysWOW64\wininit.exe
"C:\Windows\SysWOW64\wininit.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
3⤵
PID:948

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/948-70-0x0000000000000000-mapping.dmp

Download
memory/1136-68-0x0000000000000000-mapping.dmp

Download
memory/1136-79-0x00000000754A1000-0x00000000754A3000-memory.dmp

Filesize
8KB

Download
memory/1136-77-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1136-75-0x00000000008F0000-0x0000000000980000-memory.dmp

Filesize
576KB

Download
memory/1136-73-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1136-72-0x0000000001F40000-0x0000000002243000-memory.dmp

Filesize
3.0MB

Download
memory/1136-71-0x0000000000180000-0x000000000019A000-memory.dmp

Filesize
104KB

Download
memory/1256-67-0x0000000006D00000-0x0000000006E1B000-memory.dmp

Filesize
1.1MB

Download
memory/1256-74-0x00000000068F0000-0x0000000006A0D000-memory.dmp

Filesize
1.1MB

Download
memory/1256-64-0x00000000068F0000-0x0000000006A0D000-memory.dmp

Filesize
1.1MB

Download
memory/1256-78-0x0000000004050000-0x0000000004109000-memory.dmp

Filesize
740KB

Download
memory/1256-76-0x0000000004050000-0x0000000004109000-memory.dmp

Filesize
740KB

Download
memory/1732-54-0x0000000000080000-0x00000000000DE000-memory.dmp

Filesize
376KB

Download
memory/1988-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1988-66-0x0000000000320000-0x0000000000331000-memory.dmp

Filesize
68KB

Download
memory/1988-59-0x000000000041D4A0-mapping.dmp

Download
memory/1988-62-0x0000000000A60000-0x0000000000D63000-memory.dmp

Filesize
3.0MB

Download
memory/1988-58-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1988-63-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/1988-56-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1988-69-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1988-55-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads