cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/10/2024, 17:07

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General

Target

cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62N.dll
Size

22KB
MD5

fb7cb4bc8312a34c60352024d40b9300
SHA1

9918ff0b11bb8bb124aee67229f40f51116f446e
SHA256

cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62
SHA512

91d1acc0abf0ac712ffc0f4d62b4e4ffe5f33d314a79b26ddff26bb6100f402f002579c1c50700aa9354e23ad4cf2285249a60bb96fd285b6538ea3452e752bb
SSDEEP

384:L92iXpNEIB+zsRIhVjwuapvky+2mketF+xr1YBB/Hl6SB2uuaN:L9D5bj2VjwZvkyWket8xMBNPB2utN

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62N = "{830f9a9b-363c-462c-9d8c-534d185a5ebe}"	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{830f9a9b-363c-462c-9d8c-534d185a5ebe}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{830f9a9b-363c-462c-9d8c-534d185a5ebe}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62N.dll"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{830f9a9b-363c-462c-9d8c-534d185a5ebe}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28
PID 2320 wrote to memory of 1284	2320	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2320
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cef32caa3499b65b9e7872e4354d8523d218603cb8b52c49357e35f755e8ad62N.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:1284

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1284-2-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-1-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-0-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-5-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/1284-4-0x0000000010010000-0x000000001001E000-memory.dmp

Filesize
56KB

Download
memory/1284-3-0x0000000010010000-0x000000001001E000-memory.dmp

Filesize
56KB

Download
memory/1284-7-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-8-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-9-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-10-0x0000000010000000-0x0000000010005000-memory.dmp

Filesize
20KB

Download
memory/1284-11-0x0000000010010000-0x000000001001E000-memory.dmp

Filesize
56KB

Download
memory/1284-13-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads