xloader | d62663072daa5bde186f1d0c406225099d7ae372d00969a57016206c099ee1b7

General

Target

PO.exe
Size

484KB
MD5

0650530c0192eead0466f36564026598
SHA1

a731bbf3310af1d83119131c0e182e4302062eef
SHA256

d62663072daa5bde186f1d0c406225099d7ae372d00969a57016206c099ee1b7
SHA512

b35bf8737584a618af06804f7ea4b2fcfaa56d0cb2fa6c22a6584a243a65f544598e24ff317749bac39148f79439e7139d0847eaf77d1589d3764e073fd66d97

Score

10^/10

xloader n58i loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

n58i

C2

http://www.mack3sleeve.com/n58i/

Decoy

nl-cafe.com

votetedjaleta.com

britrobertsrealtor.com

globipark.com

citysucces.com

verisignwebsite-verified.com

riddlepc.com

rosecityclimbing.com

oleandrinextract.com

salmankonstruksi.com

needhamchannel.com

refreshx2z.com

youth66.com

pla-russia.com

halloweenmaskpro.com

exdysis.com

1gcz.com

lookgoodman.com

rlxagva.com

stlcityc.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/556-67-0x000000000041D070-mapping.dmp	xloader
behavioral1/memory/556-66-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1620-74-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

cmstp.exe

flow pid process

19 1620 cmstp.exe

flow	pid	process
19	1620	cmstp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO.exeRegSvcs.execmstp.exe

description	pid	process	target process
PID 1036 set thread context of 556	1036	PO.exe	RegSvcs.exe
PID 556 set thread context of 1200	556	RegSvcs.exe	Explorer.EXE
PID 1620 set thread context of 1200	1620	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

PO.exeRegSvcs.execmstp.exe

pid	process
1036	PO.exe
1036	PO.exe
1036	PO.exe
1036	PO.exe
1036	PO.exe
1036	PO.exe
556	RegSvcs.exe
556	RegSvcs.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe
1620	cmstp.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.execmstp.exe

pid process

556 RegSvcs.exe
556 RegSvcs.exe
556 RegSvcs.exe
1620 cmstp.exe
1620 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO.exeRegSvcs.execmstp.exe

description pid process

Token: SeDebugPrivilege 1036 PO.exe
Token: SeDebugPrivilege 556 RegSvcs.exe
Token: SeDebugPrivilege 1620 cmstp.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE
1200 Explorer.EXE

pid	process
556	RegSvcs.exe
556	RegSvcs.exe
556	RegSvcs.exe
1620	cmstp.exe
1620	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	1036	PO.exe
Token: SeDebugPrivilege	556	RegSvcs.exe
Token: SeDebugPrivilege	1620	cmstp.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

PO.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 616	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 1800	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1036 wrote to memory of 556	1036	PO.exe	RegSvcs.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1200 wrote to memory of 1620	1200	Explorer.EXE	cmstp.exe
PID 1620 wrote to memory of 552	1620	cmstp.exe	cmd.exe
PID 1620 wrote to memory of 552	1620	cmstp.exe	cmd.exe
PID 1620 wrote to memory of 552	1620	cmstp.exe	cmd.exe
PID 1620 wrote to memory of 552	1620	cmstp.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:1200

C:\Users\Admin\AppData\Local\Temp\PO.exe
"C:\Users\Admin\AppData\Local\Temp\PO.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1036

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:616

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:1800

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:556

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:552

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/552-75-0x0000000000000000-mapping.dmp

Download
memory/556-67-0x000000000041D070-mapping.dmp

Download
memory/556-69-0x0000000000220000-0x0000000000231000-memory.dmp

Filesize
68KB

Download
memory/556-68-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download
memory/556-66-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1036-65-0x0000000004CA0000-0x0000000004CCA000-memory.dmp

Filesize
168KB

Download
memory/1036-60-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/1036-64-0x0000000005450000-0x00000000054AF000-memory.dmp

Filesize
380KB

Download
memory/1036-63-0x0000000000340000-0x0000000000356000-memory.dmp

Filesize
88KB

Download
memory/1036-62-0x0000000004B20000-0x0000000004B21000-memory.dmp

Filesize
4KB

Download
memory/1200-70-0x0000000003D80000-0x0000000003E6D000-memory.dmp

Filesize
948KB

Download
memory/1200-78-0x0000000006FB0000-0x00000000070FA000-memory.dmp

Filesize
1.3MB

Download
memory/1620-71-0x0000000000000000-mapping.dmp

Download
memory/1620-72-0x0000000075051000-0x0000000075053000-memory.dmp

Filesize
8KB

Download
memory/1620-73-0x0000000000930000-0x0000000000948000-memory.dmp

Filesize
96KB

Download
memory/1620-74-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/1620-76-0x0000000001EE0000-0x00000000021E3000-memory.dmp

Filesize
3.0MB

Download
memory/1620-77-0x0000000001D50000-0x0000000001DE0000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads