xloader | b325f9c2ac2633700ba7f3d59d90b25b0936738d51da7b68e4465a5245124c27

General

Target

INVOICE_90990_PDF.exe
Size

297KB
MD5

3e94bee073a286e8b446e87a126dde1e
SHA1

bf461d7bc78fd36eb06ca49e4e02c3bc06897905
SHA256

85951f6ce24ad0c5e5a73c26b48dca2c9e013b554639e46dbf02bffd56cf1891
SHA512

62f69bdcf76a8d03be76fbc3f9e92690dac88b5bcebb127b0ccf1c5fee63d7c3a22bcf49810ae7294aa2828618e0403a7cc5e61e5b6b492f3704b9e2b456e2a1
SSDEEP

6144:K88JIphcJQgx6nTM0qnI9SIBxbJUvGlTcVvwKEEtWm4O2e1:j8JvJQ7Q3ISwxbJSGlTmEky+

Score

10^/10

xloader usvr discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

usvr

Decoy

theblockmeatstore.com

drone-moment.com

srsfashionbd.com

kylayagerartwork.com

instagrams.tools

rosenwealth.com

indicraftsvilla.com

rswizard.com

irist.one

pubgclaimx14.com

thegeorgiahomefinder.com

unusualdog.com

kifayatikart.com

methodunit.net

bavarian-luxury.com

17391000.com

ipcsaveday.com

yael-b.com

pasionqueconecta.com

youngsvideography.com

Signatures

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

Xloader payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2772-3-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/2772-5-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/988-13-0x0000000000070000-0x0000000000098000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2408	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 2772	2672	INVOICE_90990_PDF.exe	31
PID 2772 set thread context of 1180	2772	INVOICE_90990_PDF.exe	21
PID 988 set thread context of 1180	988	wscript.exe	21

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INVOICE_90990_PDF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2772	INVOICE_90990_PDF.exe
2772	INVOICE_90990_PDF.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe
988	wscript.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2672	INVOICE_90990_PDF.exe
2772	INVOICE_90990_PDF.exe
2772	INVOICE_90990_PDF.exe
2772	INVOICE_90990_PDF.exe
988	wscript.exe
988	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	INVOICE_90990_PDF.exe
Token: SeDebugPrivilege	988	wscript.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2772	2672	INVOICE_90990_PDF.exe	31
PID 2672 wrote to memory of 2772	2672	INVOICE_90990_PDF.exe	31
PID 2672 wrote to memory of 2772	2672	INVOICE_90990_PDF.exe	31
PID 2672 wrote to memory of 2772	2672	INVOICE_90990_PDF.exe	31
PID 2672 wrote to memory of 2772	2672	INVOICE_90990_PDF.exe	31
PID 1180 wrote to memory of 988	1180	Explorer.EXE	32
PID 1180 wrote to memory of 988	1180	Explorer.EXE	32
PID 1180 wrote to memory of 988	1180	Explorer.EXE	32
PID 1180 wrote to memory of 988	1180	Explorer.EXE	32
PID 988 wrote to memory of 2408	988	wscript.exe	33
PID 988 wrote to memory of 2408	988	wscript.exe	33
PID 988 wrote to memory of 2408	988	wscript.exe	33
PID 988 wrote to memory of 2408	988	wscript.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1180
- C:\Users\Admin\AppData\Local\Temp\INVOICE_90990_PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\INVOICE_90990_PDF.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2672
- - C:\Users\Admin\AppData\Local\Temp\INVOICE_90990_PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE_90990_PDF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2772
- C:\Windows\SysWOW64\wscript.exe
  "C:\Windows\SysWOW64\wscript.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\INVOICE_90990_PDF.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/988-10-0x0000000000860000-0x0000000000886000-memory.dmp

Filesize
152KB

Download
memory/988-12-0x0000000000860000-0x0000000000886000-memory.dmp

Filesize
152KB

Download
memory/988-13-0x0000000000070000-0x0000000000098000-memory.dmp

Filesize
160KB

Download
memory/1180-6-0x00000000024A0000-0x00000000025A0000-memory.dmp

Filesize
1024KB

Download
memory/1180-7-0x0000000006370000-0x0000000006482000-memory.dmp

Filesize
1.1MB

Download
memory/1180-14-0x0000000006370000-0x0000000006482000-memory.dmp

Filesize
1.1MB

Download
memory/2672-2-0x0000000000420000-0x0000000000422000-memory.dmp

Filesize
8KB

Download
memory/2672-1-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/2772-3-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2772-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

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