xloader | 2ea667119c0aeda764dcb53a2adf480a26985bfc682949d0fb0c02d266342c68

General

Target

DHL AWB# 4AB19037XXX.pdf.exe
Size

11KB
MD5

690684b6b6a432ef5f8b34b67653d4be
SHA1

34b072cdd785e0be9bf9717707a72c122ebf8e93
SHA256

2ea667119c0aeda764dcb53a2adf480a26985bfc682949d0fb0c02d266342c68
SHA512

b074acee0f6505a1c179af3149bc9146719b0df0bf6f0efa668d611ff388dc36f5cd7ed3c7c8a98317895ef716818ec0c3841ccff96aba0ba5ce8da15c0c6eb5

Score

10^/10

xloader o4um loader rat spyware stealer

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

o4um

C2

http://www.dependablelawnsnow.com/o4um/

Decoy

kagami-belt.com

k7e.xyz

slowcontentmarketing.com

nativeamericannurse.com

stadtquartier.xyz

vietlinkmart.com

numisme.xyz

lypp-sh.com

walkerwaughray.com

homerightsolutions.com

vpdd.top

857741.com

informednewsreader.com

misachoavien.com

aslanrefinedhomes.com

bjhaitaoshop.com

lb-fo.com

shadedfaetattoos.com

tallulahapp.com

amhonlinemarketing.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/500-119-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/500-120-0x000000000041D460-mapping.dmp	xloader
behavioral2/memory/644-126-0x0000000000760000-0x0000000000789000-memory.dmp	xloader

Downloads MZ/PE file
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 3 IoCs

Processes:

DHL AWB# 4AB19037XXX.pdf.exeRegAsm.execmd.exe

description	pid	process	target process
PID 776 set thread context of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 500 set thread context of 3020	500	RegAsm.exe	Explorer.EXE
PID 644 set thread context of 3020	644	cmd.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

RegAsm.execmd.exe

pid	process
500	RegAsm.exe
500	RegAsm.exe
500	RegAsm.exe
500	RegAsm.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe
644	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegAsm.execmd.exe

pid process

500 RegAsm.exe
500 RegAsm.exe
500 RegAsm.exe
644 cmd.exe
644 cmd.exe
644 cmd.exe
644 cmd.exe

pid	process
3020	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 13 IoCs

Processes:

DHL AWB# 4AB19037XXX.pdf.exeRegAsm.execmd.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	776	DHL AWB# 4AB19037XXX.pdf.exe
Token: SeDebugPrivilege	500	RegAsm.exe
Token: SeDebugPrivilege	644	cmd.exe
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE
Token: SeShutdownPrivilege	3020	Explorer.EXE
Token: SeCreatePagefilePrivilege	3020	Explorer.EXE

Suspicious use of FindShellTrayWindow 8 IoCs

Processes:

Explorer.EXE

pid process

3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE
3020 Explorer.EXE

pid	process
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE
3020	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DHL AWB# 4AB19037XXX.pdf.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 776 wrote to memory of 500	776	DHL AWB# 4AB19037XXX.pdf.exe	RegAsm.exe
PID 3020 wrote to memory of 644	3020	Explorer.EXE	cmd.exe
PID 3020 wrote to memory of 644	3020	Explorer.EXE	cmd.exe
PID 3020 wrote to memory of 644	3020	Explorer.EXE	cmd.exe
PID 644 wrote to memory of 688	644	cmd.exe	Firefox.exe
PID 644 wrote to memory of 688	644	cmd.exe	Firefox.exe
PID 644 wrote to memory of 688	644	cmd.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\DHL AWB# 4AB19037XXX.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\DHL AWB# 4AB19037XXX.pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:776

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:500

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:644

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/500-119-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/500-122-0x0000000001310000-0x0000000001321000-memory.dmp

Filesize
68KB

Download
memory/500-121-0x0000000002FD0000-0x00000000032F0000-memory.dmp

Filesize
3.1MB

Download
memory/500-120-0x000000000041D460-mapping.dmp

Download
memory/644-127-0x0000000003020000-0x0000000003340000-memory.dmp

Filesize
3.1MB

Download
memory/644-124-0x0000000000000000-mapping.dmp

Download
memory/644-125-0x0000000000BD0000-0x0000000000C29000-memory.dmp

Filesize
356KB

Download
memory/644-126-0x0000000000760000-0x0000000000789000-memory.dmp

Filesize
164KB

Download
memory/644-128-0x0000000002EF0000-0x0000000002F80000-memory.dmp

Filesize
576KB

Download
memory/688-131-0x00007FF7EF640000-0x00007FF7EF6D3000-memory.dmp

Filesize
588KB

Download
memory/688-132-0x0000022DC3640000-0x0000022DC37A2000-memory.dmp

Filesize
1.4MB

Download
memory/688-130-0x0000000000000000-mapping.dmp

Download
memory/776-117-0x0000000001020000-0x0000000001085000-memory.dmp

Filesize
404KB

Download
memory/776-116-0x00000000010A0000-0x00000000010A2000-memory.dmp

Filesize
8KB

Download
memory/776-118-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

Filesize
4KB

Download
memory/776-114-0x00000000007B0000-0x00000000007B1000-memory.dmp

Filesize
4KB

Download
memory/3020-123-0x00000000089F0000-0x0000000008B98000-memory.dmp

Filesize
1.7MB

Download
memory/3020-129-0x0000000004A30000-0x0000000004B36000-memory.dmp

Filesize
1.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads