15e4de42f49ea4041e4063b991ddfc6523184310f03e645c17710b370ee75347

Resubmissions

23-10-2023 14:34

231023-rxjkxabb76 5

23-10-2023 09:43

231023-lpw85she57 5

Analysis

max time kernel
1194s
max time network
1205s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
23-10-2023 14:34

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General

Target

xrN.dll
Size

1.2MB
MD5

6f87cd47913c60e70a087534c07f14b5
SHA1

ae5c8937272da7ac482d492fe2c2902e4e7c62ea
SHA256

15e4de42f49ea4041e4063b991ddfc6523184310f03e645c17710b370ee75347
SHA512

9b251f20d687e0165b011f493f6d2b062e1d5f0c737c5477b24f8224aa4ad9516602767c7231eadd8cde06ed3a8820b5a30c7312d210e7ef08d29a462393820a
SSDEEP

24576:udKa5x+tEWhqlIVibDrGw/gxoTcX3ApgGl92RY0cPL/e:cH5xRWhZ+L/g6cXwiGlz0c7

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4804 set thread context of 3420	4804	rundll32.exe	91

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5080	4804	WerFault.exe	85

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
3920	ipconfig.exe
404	netstat.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3420	SearchProtocolHost.exe
3420	SearchProtocolHost.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs

pid	Process
4804	rundll32.exe

Suspicious use of AdjustPrivilegeToken 28 IoCs

description	pid	Process
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	4912	whoami.exe
Token: SeDebugPrivilege	404	netstat.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4804	4120	rundll32.exe	85
PID 4120 wrote to memory of 4804	4120	rundll32.exe	85
PID 4120 wrote to memory of 4804	4120	rundll32.exe	85
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91
PID 4804 wrote to memory of 3420	4804	rundll32.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\xrN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\xrN.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of WriteProcessMemory
  PID:4804
- - C:\Windows\SysWOW64\SearchProtocolHost.exe
    "C:\Windows\System32\SearchProtocolHost.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3420
  - - C:\Windows\SysWOW64\whoami.exe
      whoami.exe /all
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:4912
  - - C:\Windows\SysWOW64\ipconfig.exe
      ipconfig.exe /all
      4⤵
      Gathers network information
      PID:3920
  - - C:\Windows\SysWOW64\netstat.exe
      netstat.exe -aon
      4⤵
      Gathers network information
      Suspicious use of AdjustPrivilegeToken
      PID:404
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4804 -s 676
    3⤵
    - Program crash
    PID:5080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4804 -ip 4804
1⤵
PID:1212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3420-9-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-40-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-11-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-12-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-5-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-66-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-53-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-52-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-67-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-2-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-4-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-24-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/3420-28-0x0000000000D20000-0x0000000000D70000-memory.dmp

Filesize
320KB

Download
memory/4804-1-0x0000000002A00000-0x0000000002AD2000-memory.dmp

Filesize
840KB

Download
memory/4804-8-0x0000000002A00000-0x0000000002AD2000-memory.dmp

Filesize
840KB

Download
memory/4804-7-0x00000000026C0000-0x00000000027B8000-memory.dmp

Filesize
992KB

Download
memory/4804-6-0x0000000000400000-0x000000000052B000-memory.dmp

Filesize
1.2MB

Download
memory/4804-0-0x00000000026C0000-0x00000000027B8000-memory.dmp

Filesize
992KB

Download