xloader | a393c1efa272e8ce5a92d9777da61fb53bd1ddea87510f44e2b043912e97a866

General

Target

样本目录 2020_pdf.exe
Size

245KB
MD5

d4a74696a8037005cdeb0afa11518a60
SHA1

cfedd27d891c0aa333f1cd65466527a59983b98a
SHA256

1b38b1f27ad4594b760fc65c0a898408dc9b586c90f97670c3a40d7dbe837795
SHA512

6284ae648ac8bfd8fbaae5ee1f24fc5c5ddad87f1ab6596a07487559d499bec338f3171a5eba70858e508916cefeee72a0a523bf3407cd95e414902b991181a0
SSDEEP

6144:kqKdjfLq5IGpXQgRdEypXmO5PZMFZ1fbnETB9ms5:lIGpXQgRdzmePZedbETl

Score

10^/10

xloader nu8e discovery loader rat

Malware Config

Extracted

Family

xloader

Version

2.3

Campaign

nu8e

Decoy

joansmoviereviews.com

tronicsbuyer.com

test-amqatest-27-08-2020.com

localwebsurvey.email

toptierschools.com

exoticfilipina.com

iregentos.info

ic500500.com

z3255vsrwqstudio.club

dacabionline.com

innov-learners.com

redwardenstudios.com

payprscn.com

hannahmadeya.com

acandenizhukuk.com

alhaddarnewse.com

aestheticsbrazil.com

amandamcmahon.net

naughtykittyllc.com

germantoolbox.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/1768-3-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1768-5-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/2260-14-0x0000000000090000-0x00000000000B9000-memory.dmp	xloader

Deletes itself 1 IoCs

pid	Process
2732	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1476 set thread context of 1768	1476	样本目录 2020_pdf.exe	31
PID 1768 set thread context of 1184	1768	样本目录 2020_pdf.exe	21
PID 2260 set thread context of 1184	2260	rundll32.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	样本目录 2020_pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
1768	样本目录 2020_pdf.exe
1768	样本目录 2020_pdf.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe
2260	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1476	样本目录 2020_pdf.exe
1768	样本目录 2020_pdf.exe
1768	样本目录 2020_pdf.exe
1768	样本目录 2020_pdf.exe
2260	rundll32.exe
2260	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1768	样本目录 2020_pdf.exe
Token: SeDebugPrivilege	2260	rundll32.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1476 wrote to memory of 1768	1476	样本目录 2020_pdf.exe	31
PID 1476 wrote to memory of 1768	1476	样本目录 2020_pdf.exe	31
PID 1476 wrote to memory of 1768	1476	样本目录 2020_pdf.exe	31
PID 1476 wrote to memory of 1768	1476	样本目录 2020_pdf.exe	31
PID 1476 wrote to memory of 1768	1476	样本目录 2020_pdf.exe	31
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 1184 wrote to memory of 2260	1184	Explorer.EXE	32
PID 2260 wrote to memory of 2732	2260	rundll32.exe	33
PID 2260 wrote to memory of 2732	2260	rundll32.exe	33
PID 2260 wrote to memory of 2732	2260	rundll32.exe	33
PID 2260 wrote to memory of 2732	2260	rundll32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\样本目录 2020_pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\样本目录 2020_pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Users\Admin\AppData\Local\Temp\样本目录 2020_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\样本目录 2020_pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1768
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2260
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\样本目录 2020_pdf.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2732

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/1184-15-0x0000000007110000-0x0000000007272000-memory.dmp

Filesize
1.4MB

Download
memory/1184-6-0x0000000003B40000-0x0000000003C40000-memory.dmp

Filesize
1024KB

Download
memory/1184-7-0x0000000007110000-0x0000000007272000-memory.dmp

Filesize
1.4MB

Download
memory/1184-22-0x0000000007A90000-0x0000000007BA7000-memory.dmp

Filesize
1.1MB

Download
memory/1184-20-0x0000000007A90000-0x0000000007BA7000-memory.dmp

Filesize
1.1MB

Download
memory/1184-19-0x0000000007A90000-0x0000000007BA7000-memory.dmp

Filesize
1.1MB

Download
memory/1476-1-0x0000000000090000-0x0000000000190000-memory.dmp

Filesize
1024KB

Download
memory/1476-2-0x00000000002C0000-0x00000000002C2000-memory.dmp

Filesize
8KB

Download
memory/1768-3-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1768-5-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/2260-11-0x0000000000C60000-0x0000000000C6E000-memory.dmp

Filesize
56KB

Download
memory/2260-14-0x0000000000090000-0x00000000000B9000-memory.dmp

Filesize
164KB

Download
memory/2260-13-0x0000000000C60000-0x0000000000C6E000-memory.dmp

Filesize
56KB

Download
memory/2260-10-0x0000000000C60000-0x0000000000C6E000-memory.dmp

Filesize
56KB

Download

Analysis

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