xloader | 46a2db9a230702587a6b3f74db164fc360707b6ed103cbe88f35d52208384c26

General

Target

0628222 _TOP.exe
Size

324KB
MD5

bbebf7c783af4a1b1022fe46780bc001
SHA1

9a78f8d303f86ac387c16ea85a4bdac7ae0d7a09
SHA256

46a2db9a230702587a6b3f74db164fc360707b6ed103cbe88f35d52208384c26
SHA512

39f8ec23d5e6036e44b2af173e1ae86d5a8c76e5875927763e94434a230bbd644110ef3e94e1da3cb9196b4799f549dd7b348aca949eb20b01247da348afad3d

Score

10^/10

xloader tn61 loader rat suricata

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.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/964-58-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/964-59-0x000000000041F2C0-mapping.dmp	xloader
behavioral1/memory/964-61-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/964-70-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1252-74-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader
behavioral1/memory/1252-78-0x0000000000080000-0x00000000000AB000-memory.dmp	xloader

Suspicious use of SetThreadContext 4 IoCs

Processes:

0628222 _TOP.execvtres.exeexplorer.exe

description	pid	process	target process
PID 948 set thread context of 964	948	0628222 _TOP.exe	cvtres.exe
PID 964 set thread context of 1256	964	cvtres.exe	Explorer.EXE
PID 964 set thread context of 1256	964	cvtres.exe	Explorer.EXE
PID 1252 set thread context of 1256	1252	explorer.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

cvtres.exeexplorer.exe

pid	process
964	cvtres.exe
964	cvtres.exe
964	cvtres.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe
1252	explorer.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

cvtres.exeexplorer.exe

pid process

964 cvtres.exe
964 cvtres.exe
964 cvtres.exe
964 cvtres.exe
1252 explorer.exe
1252 explorer.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cvtres.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 964 cvtres.exe
Token: SeDebugPrivilege 1252 explorer.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	964	cvtres.exe
Token: SeDebugPrivilege	1252	explorer.exe

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

pid	process
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0628222 _TOP.execvtres.exeexplorer.exe

description	pid	process	target process
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 948 wrote to memory of 964	948	0628222 _TOP.exe	cvtres.exe
PID 964 wrote to memory of 1252	964	cvtres.exe	explorer.exe
PID 964 wrote to memory of 1252	964	cvtres.exe	explorer.exe
PID 964 wrote to memory of 1252	964	cvtres.exe	explorer.exe
PID 964 wrote to memory of 1252	964	cvtres.exe	explorer.exe
PID 1252 wrote to memory of 2016	1252	explorer.exe	cmd.exe
PID 1252 wrote to memory of 2016	1252	explorer.exe	cmd.exe
PID 1252 wrote to memory of 2016	1252	explorer.exe	cmd.exe
PID 1252 wrote to memory of 2016	1252	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1256

C:\Users\Admin\AppData\Local\Temp\0628222 _TOP.exe
"C:\Users\Admin\AppData\Local\Temp\0628222 _TOP.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:948

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
- Suspicious use of WriteProcessMemory
PID:964

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
4⤵
PID:1244

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
5⤵
PID:2016

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/948-54-0x0000000000DE0000-0x0000000000E34000-memory.dmp

Filesize
336KB

Download
memory/964-70-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/964-61-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/964-66-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/964-59-0x000000000041F2C0-mapping.dmp

Download
memory/964-55-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/964-62-0x0000000000D90000-0x0000000001093000-memory.dmp

Filesize
3.0MB

Download
memory/964-63-0x0000000000140000-0x0000000000151000-memory.dmp

Filesize
68KB

Download
memory/964-56-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/964-58-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1252-68-0x0000000000000000-mapping.dmp

Download
memory/1252-78-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1252-75-0x0000000002460000-0x0000000002763000-memory.dmp

Filesize
3.0MB

Download
memory/1252-69-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1252-71-0x0000000074E41000-0x0000000074E43000-memory.dmp

Filesize
8KB

Download
memory/1252-76-0x0000000000AF0000-0x0000000000B80000-memory.dmp

Filesize
576KB

Download
memory/1252-73-0x0000000000C40000-0x0000000000EC1000-memory.dmp

Filesize
2.5MB

Download
memory/1252-74-0x0000000000080000-0x00000000000AB000-memory.dmp

Filesize
172KB

Download
memory/1256-67-0x00000000042B0000-0x0000000004368000-memory.dmp

Filesize
736KB

Download
memory/1256-77-0x00000000068D0000-0x0000000006998000-memory.dmp

Filesize
800KB

Download
memory/1256-64-0x0000000002B60000-0x0000000002C1A000-memory.dmp

Filesize
744KB

Download
memory/1256-79-0x00000000068D0000-0x0000000006998000-memory.dmp

Filesize
800KB

Download
memory/2016-72-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads