6a3052e5193c5cbbfd6467a46a5e3b81f32ebc043a495573d7ad477f5b3d7a8e

Analysis

max time kernel
1s
max time network
16s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
07-03-2024 21:07

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General

Target

b9a93d970600e8d0d33486ff79b41e4d.exe
Size

104KB
MD5

b9a93d970600e8d0d33486ff79b41e4d
SHA1

879381d8208fc8fbdcd7163df5f93f1370ac1fc3
SHA256

6a3052e5193c5cbbfd6467a46a5e3b81f32ebc043a495573d7ad477f5b3d7a8e
SHA512

68637297b3d7ef43eddeae73f97c143fe30ff3b6cb2865cd839490b1d304af614b0b58efe4789d6ef68c5bdd35147bfe98fda8eb59a335c84c34f42206c05936
SSDEEP

1536:1JMmtF2zHXS0TaJd09P3FYVqm9g1HMyHW2I:1JM0F27C0m01VYbyFMQ

Score

7^/10

persistence

Malware Config

Signatures

Loads dropped DLL 1 IoCs

pid	Process
2240	b9a93d970600e8d0d33486ff79b41e4d.exe

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RUN\NAVMon32 = "C:\\Windows\\NAVMon32.exE"	b9a93d970600e8d0d33486ff79b41e4d.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\NAVMon32.dll	b9a93d970600e8d0d33486ff79b41e4d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\NAVMon32.exE	b9a93d970600e8d0d33486ff79b41e4d.exe
File opened for modification	C:\Windows\NAVMon32.exE	b9a93d970600e8d0d33486ff79b41e4d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2240	b9a93d970600e8d0d33486ff79b41e4d.exe
2240	b9a93d970600e8d0d33486ff79b41e4d.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2240	b9a93d970600e8d0d33486ff79b41e4d.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 1192	2240	b9a93d970600e8d0d33486ff79b41e4d.exe	21
PID 2240 wrote to memory of 1192	2240	b9a93d970600e8d0d33486ff79b41e4d.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192
- C:\Users\Admin\AppData\Local\Temp\b9a93d970600e8d0d33486ff79b41e4d.exe
  "C:\Users\Admin\AppData\Local\Temp\b9a93d970600e8d0d33486ff79b41e4d.exe"
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2240

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Windows\SysWOW64\NAVMon32.dll

Filesize
31KB

MD5
b369bea916a144a2ed6f34de3eeed57a

SHA1
2ff1e7bf702c54804a965eada855b5ad85ce73ed

SHA256
c64bbb218f53c8ea0dbdda2386909689ed60f1622b3c96b7ecfe84d94391ecaa

SHA512
1f02774f55fba1d22b71e806a5df88dd0b9d3dc09af4e18e8764ac014197d8cc430a24c0ee788fa4518ee89cdbcf8755c908cb9f9a2634bde2fcc5e600dd241b

Download Submit
memory/1192-3-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/2240-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2240-11-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download