471f3fb1a953fab38be3081eb835574694bc72b94f239edc400d1ce3d7a8ecb0

Analysis

max time kernel
840s
max time network
841s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 02:43

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General

Target

a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe
Size

246KB
MD5

7ec4fb3737e96c0aef2f98d20013dc5a
SHA1

4e8a042292c4ef20556d4aedf5b3ea0a29d2fbe7
SHA256

a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234
SHA512

849ab6bfd9f61a10d29b727e0bfcc7804653764e2d4a9a01515a48b6ff52e37fd1954715d8decb7bde819bf490563924c3d8e51dcaf8218c40852ffdf9d65eb8
SSDEEP

3072:6NBbOKnoIKE+Ypjf+MGtmhoWk6a1wKyPK:clmE5jfwWk6+wv

Score

9^/10

discovery persistence ransomware

Malware Config

Signatures

Renames multiple (157) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Deletes itself 1 IoCs

Processes:

mshta.exe

pid process

2536 mshta.exe
Executes dropped EXE 1 IoCs

Processes:

trust.exe

pid process

2968 trust.exe

pid	process
2536	mshta.exe

pid	process
2968	trust.exe

Loads dropped DLL 2 IoCs

Processes:

a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe

pid	process
2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe
2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

mshta.exetrust.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\SG = "C:\\Users\\Admin\\AppData\\Roaming\\trust.exe"	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\Read Me Please = "mshta.exe \"C:\\Users\\Admin\\Read Me Please.hta\""	trust.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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

Processes:

mshta.exetrust.exemshta.exemshta.exemshta.exea42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	trust.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe

Modifies Internet Explorer settings 1 TTPs 3 IoCs

adware spyware

Modify Registry

T1112

Processes:

mshta.exemshta.exemshta.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exetrust.exe

description	pid	process	target process
PID 2732 wrote to memory of 2968	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	trust.exe
PID 2732 wrote to memory of 2968	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	trust.exe
PID 2732 wrote to memory of 2968	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	trust.exe
PID 2732 wrote to memory of 2968	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	trust.exe
PID 2732 wrote to memory of 2536	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	mshta.exe
PID 2732 wrote to memory of 2536	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	mshta.exe
PID 2732 wrote to memory of 2536	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	mshta.exe
PID 2732 wrote to memory of 2536	2732	a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe	mshta.exe
PID 2968 wrote to memory of 2404	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2404	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2404	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2404	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2412	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2412	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2412	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2412	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2408	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2408	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2408	2968	trust.exe	mshta.exe
PID 2968 wrote to memory of 2408	2968	trust.exe	mshta.exe

C:\Users\Admin\AppData\Local\Temp\a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe
"C:\Users\Admin\AppData\Local\Temp\a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Roaming\trust.exe
  "C:\Users\Admin\AppData\Roaming\trust.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\SysWOW64\mshta.exe
    mshta.exe "javascript:o=new ActiveXObject('WScript.Shell');setInterval(function(){try{o.RegWrite('HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\SG','C:\\Users\\Admin\\AppData\\Roaming\\trust.exe');}catch(e){}},10);"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    PID:2404
- - C:\Windows\SysWOW64\mshta.exe
    mshta.exe "C:\Users\Admin\Read Me Please.hta"
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    PID:2412
- - C:\Windows\SysWOW64\mshta.exe
    mshta.exe "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\Users\\Admin\\AppData\\Roaming\\trust.exe');close()}catch(e){}},10);"
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    PID:2408
- C:\Windows\SysWOW64\mshta.exe
  mshta.exe "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\Users\\Admin\\AppData\\Local\\Temp\\A42252~1.EXE');close()}catch(e){}},10);"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2536

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 Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Favorites\Links for United States\Read Me Please.hta

Filesize
3KB

MD5
575f08db91dfc9a689cf26886ed167f0

SHA1
03276b77e5df8d00fb5aa93e270893fa8daf35d8

SHA256
8663e38f64a6204ef45990a5bd4454a77f7b9938a0008b7c039491d2a200edfd

SHA512
e954bed8f580a9760b78ed5f2e1e165048e137f8df6f7eb6de7bf7c4304eae1935e5d37f15e25df7ad9f059b51591567fb4fa7327b2c3b936c01dc78fa1f5ed4

Download Submit
C:\vcredist2010_x86.log.html.zendrz

Filesize
80KB

MD5
f9ae16b19004816012947c7922ec2383

SHA1
56a7f363311accfa28ab058c37b24a1bfb270abc

SHA256
f0edb8eee2db641027c151af9230b6ceb8e7f9aab82f675dd5c7685022aeee02

SHA512
e52ec7d99eca3c26ee0b92c6f596382ee8c04021ec57e8c19eac1ca860915faa15bb7392647924176cd2e5866494f843a758be04f7f842efcff9a9e35f94333b

Download Submit
\Users\Admin\AppData\Roaming\trust.exe

Filesize
246KB

MD5
7ec4fb3737e96c0aef2f98d20013dc5a

SHA1
4e8a042292c4ef20556d4aedf5b3ea0a29d2fbe7

SHA256
a42252e674a09a0b689e71c88f59969f538a473da647cc4eb5457a5d5e03a234

SHA512
849ab6bfd9f61a10d29b727e0bfcc7804653764e2d4a9a01515a48b6ff52e37fd1954715d8decb7bde819bf490563924c3d8e51dcaf8218c40852ffdf9d65eb8

Download Submit
memory/2732-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2968-504-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download