xloader | 6c6dd45a923d7eb6fa1f114a5a4c20fab27bc03e44a5c8cb8627d43da93dfe48

General

Target

doc_391200004532000450.scr
Size

899KB
MD5

1e1f169ac3fc87ad55252f38cad083bb
SHA1

ec778acec7bfe578f6d13556765e5ed5ba0a405b
SHA256

6c6dd45a923d7eb6fa1f114a5a4c20fab27bc03e44a5c8cb8627d43da93dfe48
SHA512

edad0f0ec3c9b0daebbd7ab17ab182cdeabb3fad0ba0d08a2191f1007f41b8cf995ed9082fa3439857065900a1ed3b5c73091113aa8bb6dc3db6813ebf24ee35

Score

10^/10

xloader loader persistence rat

Malware Config

Extracted

Family

xloader

Version

2.3

C2

http://www.austinenglishtutor.com/ipio/

Decoy

fatiguemanager.co.uk

malignment.com

fashionashton.com

soawstservices.com

gardengarages.com

affirm.digital

savetheboxes.com

stepupjam.net

sassyfurbaby.com

rarecares.institute

hisarsteel.com

thespotifygrowthguide.com

111indianbend.com

kizilaykorkuevi.com

zeegostar.com

scuolateatroarsenale.com

dyaspaar.com

no1jt.com

gain2020live.com

dearhim.com

Signatures

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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/932-61-0x0000000000000000-mapping.dmp	xloader
behavioral1/memory/932-65-0x0000000010410000-0x0000000010439000-memory.dmp	xloader
behavioral1/memory/1040-71-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

doc_391200004532000450.scr

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\Hmrblz = "C:\\Users\\Public\\zlbrmH.url"	doc_391200004532000450.scr

Suspicious use of SetThreadContext 2 IoCs

Processes:

dialer.exemstsc.exe

description	pid	process	target process
PID 932 set thread context of 1200	932	dialer.exe	Explorer.EXE
PID 1040 set thread context of 1200	1040	mstsc.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

dialer.exemstsc.exe

pid	process
932	dialer.exe
932	dialer.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe
1040	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

dialer.exemstsc.exe

pid process

932 dialer.exe
932 dialer.exe
932 dialer.exe
1040 mstsc.exe
1040 mstsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dialer.exemstsc.exe

description pid process

Token: SeDebugPrivilege 932 dialer.exe
Token: SeDebugPrivilege 1040 mstsc.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

description	pid	process
Token: SeDebugPrivilege	932	dialer.exe
Token: SeDebugPrivilege	1040	mstsc.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 11 IoCs

Processes:

doc_391200004532000450.scrExplorer.EXE

description	pid	process	target process
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1056 wrote to memory of 932	1056	doc_391200004532000450.scr	dialer.exe
PID 1200 wrote to memory of 1040	1200	Explorer.EXE	mstsc.exe
PID 1200 wrote to memory of 1040	1200	Explorer.EXE	mstsc.exe
PID 1200 wrote to memory of 1040	1200	Explorer.EXE	mstsc.exe
PID 1200 wrote to memory of 1040	1200	Explorer.EXE	mstsc.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\doc_391200004532000450.scr
"C:\Users\Admin\AppData\Local\Temp\doc_391200004532000450.scr" /S
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\SysWOW64\dialer.exe
C:\Windows\System32\dialer.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:932

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1136

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:912

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1040

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/932-66-0x0000000000210000-0x0000000000220000-memory.dmp

Filesize
64KB

Download
memory/932-65-0x0000000010410000-0x0000000010439000-memory.dmp

Filesize
164KB

Download
memory/932-61-0x0000000000000000-mapping.dmp

Download
memory/932-63-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/932-64-0x0000000002100000-0x0000000002403000-memory.dmp

Filesize
3.0MB

Download
memory/1040-68-0x0000000000000000-mapping.dmp

Download
memory/1040-72-0x0000000000BD0000-0x0000000000ED3000-memory.dmp

Filesize
3.0MB

Download
memory/1040-71-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1040-70-0x0000000000F20000-0x0000000001024000-memory.dmp

Filesize
1.0MB

Download
memory/1040-73-0x0000000000AE0000-0x0000000000B6F000-memory.dmp

Filesize
572KB

Download
memory/1056-60-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1056-59-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download
memory/1200-67-0x0000000003B20000-0x0000000003BD9000-memory.dmp

Filesize
740KB

Download
memory/1200-74-0x00000000041D0000-0x000000000426E000-memory.dmp

Filesize
632KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads