751f149665f87dd20cc8dff743f28e5da1ff2a5f04874d4b8569b9afceeedfec

Analysis

max time kernel
29s
max time network
18s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06/08/2024, 23:20

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

751f149665f87dd20cc8dff743f28e5da1ff2a5f04874d4b8569b9afceeedfec.dll
Size

6.0MB
MD5

573baaf10e2cd69e7749e8d65c5adabf
SHA1

2879aae0d563b38b564c0c8905788fcf8c3e4b70
SHA256

751f149665f87dd20cc8dff743f28e5da1ff2a5f04874d4b8569b9afceeedfec
SHA512

79c7f3fd34225d5c0eceb2278676272f731f72bd0e632a080073993ebbad1c813df3a4ea5e63490b7844159bd36ca2855b6aca1242a2091327bcc5e9aa414434
SSDEEP

49152:JErEyCal8VnN+LwbEOCAQFhZ81wm+R9BlwxPJfkwDQby1uZLOkALP7fivHdHufrd:JElCQ8VN+TAghZbR9y6wKyskkk2HO

Score

6^/10

discovery persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\*ChromeUpdate = "rundll32.exe C:\\Users\\Admin\\Documents\\FirefoxData.dll,EntryPoint"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs

pid	Process
1952	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3060	592	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 4 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 2488 wrote to memory of 1952	2488	rundll32.exe	28
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 1952 wrote to memory of 592	1952	rundll32.exe	29
PID 592 wrote to memory of 3060	592	rundll32.exe	30
PID 592 wrote to memory of 3060	592	rundll32.exe	30
PID 592 wrote to memory of 3060	592	rundll32.exe	30
PID 592 wrote to memory of 3060	592	rundll32.exe	30
PID 1952 wrote to memory of 2752	1952	rundll32.exe	31
PID 1952 wrote to memory of 2752	1952	rundll32.exe	31
PID 1952 wrote to memory of 2752	1952	rundll32.exe	31
PID 1952 wrote to memory of 2752	1952	rundll32.exe	31
PID 2752 wrote to memory of 2668	2752	cmd.exe	33
PID 2752 wrote to memory of 2668	2752	cmd.exe	33
PID 2752 wrote to memory of 2668	2752	cmd.exe	33
PID 2752 wrote to memory of 2668	2752	cmd.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\751f149665f87dd20cc8dff743f28e5da1ff2a5f04874d4b8569b9afceeedfec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2488
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\751f149665f87dd20cc8dff743f28e5da1ff2a5f04874d4b8569b9afceeedfec.dll,#1
  2⤵
  - Suspicious use of NtCreateThreadExHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1952
- - C:\Windows\SysWOW64\rundll32.exe
    "C:\Windows\SysWOW64\rundll32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:592
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 592 -s 196
      4⤵
      Program crash
      PID:3060
- - C:\Windows\SysWOW64\cmd.exe
    cmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2752
  - - C:\Windows\SysWOW64\reg.exe
      reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*ChromeUpdate" /t REG_SZ /d "rundll32.exe C:\Users\Admin\Documents\FirefoxData.dll",EntryPoint /f
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:2668

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/592-15-0x0000000000090000-0x000000000010E000-memory.dmp

Filesize
504KB

Download
memory/592-13-0x0000000000090000-0x000000000010E000-memory.dmp

Filesize
504KB

Download
memory/592-12-0x0000000000090000-0x000000000010E000-memory.dmp

Filesize
504KB

Download
memory/592-9-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/592-8-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/592-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/592-4-0x0000000000090000-0x000000000010E000-memory.dmp

Filesize
504KB

Download
memory/1952-1-0x0000000065013000-0x000000006502D000-memory.dmp

Filesize
104KB

Download
memory/1952-2-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/1952-0-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/1952-11-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download
memory/1952-3-0x0000000065000000-0x00000000654EA000-memory.dmp

Filesize
4.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads