xloader | 55043fccaa51456c6d7b5aab6245b5cb74dde6cf3a6358f79aaddb81b6e320db

General

Target

PO 128.exe
Size

664KB
MD5

b28324fa7ead5dae86b30af4950c0faa
SHA1

130a7107cf6b22dddf6533f10b6e763bc59002aa
SHA256

55043fccaa51456c6d7b5aab6245b5cb74dde6cf3a6358f79aaddb81b6e320db
SHA512

f6b520c2b0b75b8678f4ad27796c24b644acd71d47fcb850b6c602927857d28551e0239ad2774afa2660794878a5adf48943d0529215accfd309bbda49ab6421

Score

10^/10

xloader n58i loader rat suricata

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/548-124-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/548-125-0x000000000041D070-mapping.dmp	xloader
behavioral2/memory/772-131-0x0000000002AD0000-0x0000000002AF9000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO 128.exeRegSvcs.exeexplorer.exe

description	pid	process	target process
PID 396 set thread context of 548	396	PO 128.exe	RegSvcs.exe
PID 548 set thread context of 3032	548	RegSvcs.exe	Explorer.EXE
PID 772 set thread context of 3032	772	explorer.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

PO 128.exeRegSvcs.exeexplorer.exe

pid	process
396	PO 128.exe
396	PO 128.exe
396	PO 128.exe
396	PO 128.exe
548	RegSvcs.exe
548	RegSvcs.exe
548	RegSvcs.exe
548	RegSvcs.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe
772	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3032 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.exeexplorer.exe

pid process

548 RegSvcs.exe
548 RegSvcs.exe
548 RegSvcs.exe
772 explorer.exe
772 explorer.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO 128.exeRegSvcs.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 396 PO 128.exe
Token: SeDebugPrivilege 548 RegSvcs.exe
Token: SeDebugPrivilege 772 explorer.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3032 Explorer.EXE

pid	process
3032	Explorer.EXE

pid	process
548	RegSvcs.exe
548	RegSvcs.exe
548	RegSvcs.exe
772	explorer.exe
772	explorer.exe

description	pid	process
Token: SeDebugPrivilege	396	PO 128.exe
Token: SeDebugPrivilege	548	RegSvcs.exe
Token: SeDebugPrivilege	772	explorer.exe

pid	process
3032	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

PO 128.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 396 wrote to memory of 2752	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 2752	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 2752	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 396 wrote to memory of 548	396	PO 128.exe	RegSvcs.exe
PID 3032 wrote to memory of 772	3032	Explorer.EXE	explorer.exe
PID 3032 wrote to memory of 772	3032	Explorer.EXE	explorer.exe
PID 3032 wrote to memory of 772	3032	Explorer.EXE	explorer.exe
PID 772 wrote to memory of 2128	772	explorer.exe	cmd.exe
PID 772 wrote to memory of 2128	772	explorer.exe	cmd.exe
PID 772 wrote to memory of 2128	772	explorer.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3032

C:\Users\Admin\AppData\Local\Temp\PO 128.exe
"C:\Users\Admin\AppData\Local\Temp\PO 128.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2752

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:548

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:772

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:2128

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/396-114-0x00000000002F0000-0x00000000002F1000-memory.dmp

Filesize
4KB

Download
memory/396-116-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/396-117-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

Filesize
4KB

Download
memory/396-118-0x0000000004B20000-0x0000000004BB2000-memory.dmp

Filesize
584KB

Download
memory/396-119-0x0000000004C70000-0x0000000004C71000-memory.dmp

Filesize
4KB

Download
memory/396-120-0x0000000005120000-0x0000000005136000-memory.dmp

Filesize
88KB

Download
memory/396-121-0x000000000C310000-0x000000000C311000-memory.dmp

Filesize
4KB

Download
memory/396-122-0x000000000C3B0000-0x000000000C40F000-memory.dmp

Filesize
380KB

Download
memory/396-123-0x000000000C2E0000-0x000000000C30A000-memory.dmp

Filesize
168KB

Download
memory/548-125-0x000000000041D070-mapping.dmp

Download
memory/548-124-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/548-127-0x0000000000F90000-0x0000000000FA1000-memory.dmp

Filesize
68KB

Download
memory/548-126-0x0000000001560000-0x0000000001880000-memory.dmp

Filesize
3.1MB

Download
memory/772-129-0x0000000000000000-mapping.dmp

Download
memory/772-130-0x0000000000390000-0x00000000007CF000-memory.dmp

Filesize
4.2MB

Download
memory/772-131-0x0000000002AD0000-0x0000000002AF9000-memory.dmp

Filesize
164KB

Download
memory/772-132-0x0000000004B90000-0x0000000004EB0000-memory.dmp

Filesize
3.1MB

Download
memory/772-134-0x0000000004900000-0x0000000004990000-memory.dmp

Filesize
576KB

Download
memory/2128-133-0x0000000000000000-mapping.dmp

Download
memory/3032-128-0x0000000004DF0000-0x0000000004EF6000-memory.dmp

Filesize
1.0MB

Download
memory/3032-135-0x0000000005690000-0x00000000057E7000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads