xloader | 35517ca8e7a66a88a7243724e6c374d0a4a82878792536087f746bf33ab2bddf

General

Target

PO#4500491796.exe
Size

944KB
MD5

e5d92d9d8c8b6bea5fff7c0fb1c2e21a
SHA1

46ffd28bced83a839042d7a49e30b8821fdaa353
SHA256

35517ca8e7a66a88a7243724e6c374d0a4a82878792536087f746bf33ab2bddf
SHA512

393ed37b97aa04abc7c92f4d7ba92725c5f33441f5747d6c9939ccce998c207c6e7fc8c657a2523fed56ebeddfffcf0cd57822b922f8c30a2aeb080a5fefc2e3

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/940-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/940-126-0x000000000041D070-mapping.dmp	xloader
behavioral2/memory/3260-133-0x0000000002810000-0x0000000002839000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

PO#4500491796.exeRegSvcs.execmstp.exe

description	pid	process	target process
PID 656 set thread context of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 940 set thread context of 3092	940	RegSvcs.exe	Explorer.EXE
PID 3260 set thread context of 3092	3260	cmstp.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

PO#4500491796.exeRegSvcs.execmstp.exe

pid	process
656	PO#4500491796.exe
940	RegSvcs.exe
940	RegSvcs.exe
940	RegSvcs.exe
940	RegSvcs.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe
3260	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3092 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

RegSvcs.execmstp.exe

pid process

940 RegSvcs.exe
940 RegSvcs.exe
940 RegSvcs.exe
3260 cmstp.exe
3260 cmstp.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

PO#4500491796.exeRegSvcs.execmstp.exe

description pid process

Token: SeDebugPrivilege 656 PO#4500491796.exe
Token: SeDebugPrivilege 940 RegSvcs.exe
Token: SeDebugPrivilege 3260 cmstp.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3092 Explorer.EXE

pid	process
3092	Explorer.EXE

pid	process
940	RegSvcs.exe
940	RegSvcs.exe
940	RegSvcs.exe
3260	cmstp.exe
3260	cmstp.exe

description	pid	process
Token: SeDebugPrivilege	656	PO#4500491796.exe
Token: SeDebugPrivilege	940	RegSvcs.exe
Token: SeDebugPrivilege	3260	cmstp.exe

pid	process
3092	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

PO#4500491796.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 656 wrote to memory of 940	656	PO#4500491796.exe	RegSvcs.exe
PID 3092 wrote to memory of 3260	3092	Explorer.EXE	cmstp.exe
PID 3092 wrote to memory of 3260	3092	Explorer.EXE	cmstp.exe
PID 3092 wrote to memory of 3260	3092	Explorer.EXE	cmstp.exe
PID 3260 wrote to memory of 728	3260	cmstp.exe	cmd.exe
PID 3260 wrote to memory of 728	3260	cmstp.exe	cmd.exe
PID 3260 wrote to memory of 728	3260	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3092

C:\Users\Admin\AppData\Local\Temp\PO#4500491796.exe
"C:\Users\Admin\AppData\Local\Temp\PO#4500491796.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:656

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:940

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2056

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:1992

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3260

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
3⤵
PID:728

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/656-116-0x00000000052B0000-0x00000000052B1000-memory.dmp

Filesize
4KB

Download
memory/656-117-0x0000000005850000-0x0000000005851000-memory.dmp

Filesize
4KB

Download
memory/656-118-0x0000000005350000-0x0000000005351000-memory.dmp

Filesize
4KB

Download
memory/656-119-0x0000000002D50000-0x0000000002D51000-memory.dmp

Filesize
4KB

Download
memory/656-120-0x0000000005210000-0x0000000005211000-memory.dmp

Filesize
4KB

Download
memory/656-121-0x0000000005570000-0x0000000005571000-memory.dmp

Filesize
4KB

Download
memory/656-122-0x0000000005280000-0x0000000005291000-memory.dmp

Filesize
68KB

Download
memory/656-123-0x0000000009E70000-0x0000000009F11000-memory.dmp

Filesize
644KB

Download
memory/656-124-0x000000000C710000-0x000000000C743000-memory.dmp

Filesize
204KB

Download
memory/656-114-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/728-131-0x0000000000000000-mapping.dmp

Download
memory/940-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/940-127-0x00000000019A0000-0x0000000001CC0000-memory.dmp

Filesize
3.1MB

Download
memory/940-128-0x0000000001500000-0x0000000001511000-memory.dmp

Filesize
68KB

Download
memory/940-126-0x000000000041D070-mapping.dmp

Download
memory/3092-129-0x0000000006AB0000-0x0000000006B6B000-memory.dmp

Filesize
748KB

Download
memory/3092-136-0x0000000006230000-0x00000000062EE000-memory.dmp

Filesize
760KB

Download
memory/3260-130-0x0000000000000000-mapping.dmp

Download
memory/3260-133-0x0000000002810000-0x0000000002839000-memory.dmp

Filesize
164KB

Download
memory/3260-132-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/3260-134-0x00000000045A0000-0x00000000048C0000-memory.dmp

Filesize
3.1MB

Download
memory/3260-135-0x00000000043F0000-0x0000000004480000-memory.dmp

Filesize
576KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads