471f3fb1a953fab38be3081eb835574694bc72b94f239edc400d1ce3d7a8ecb0

Analysis

max time kernel
842s
max time network
843s
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

8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe
Size

246KB
MD5

04742f7774cda5b58d7e5c1ba5a4e941
SHA1

a8e35ff71e0561268f8c3082bcaa2f314a272005
SHA256

8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821
SHA512

726974f82334c474b363d2232f21db2e04730965147e01f9ac5b8f06a44c873e78e2ee7982147c85dffb1eec40fdb445b18b67d4e25303f1dfc672f63f0b9562
SSDEEP

1536:xQqUQQ5fNlzCKxOxwoBg5KE+Y5NpWEibmbkWuEZ8DIPsfie8Sf1wKygNiJK:6NBbOKnoIKE+YpWFCoWk6a1wKyPK

Score

9^/10

discovery persistence ransomware

Malware Config

Signatures

Renames multiple (171) 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

2788 mshta.exe
Executes dropped EXE 1 IoCs

Processes:

trust.exe

pid process

2664 trust.exe

pid	process
2788	mshta.exe

pid	process
2664	trust.exe

Loads dropped DLL 2 IoCs

Processes:

8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe

pid	process
2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe
2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\SG = "C:\\Users\\Admin\\AppData\\Roaming\\trust.exe"	mshta.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\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:

8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exemshta.exetrust.exemshta.exemshta.exemshta.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe
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

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exetrust.exe

description	pid	process	target process
PID 2748 wrote to memory of 2664	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	trust.exe
PID 2748 wrote to memory of 2664	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	trust.exe
PID 2748 wrote to memory of 2664	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	trust.exe
PID 2748 wrote to memory of 2664	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	trust.exe
PID 2748 wrote to memory of 2788	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	mshta.exe
PID 2748 wrote to memory of 2788	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	mshta.exe
PID 2748 wrote to memory of 2788	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	mshta.exe
PID 2748 wrote to memory of 2788	2748	8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe	mshta.exe
PID 2664 wrote to memory of 2800	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 2800	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 2800	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 2800	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 916	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 916	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 916	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 916	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 1672	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 1672	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 1672	2664	trust.exe	mshta.exe
PID 2664 wrote to memory of 1672	2664	trust.exe	mshta.exe

C:\Users\Admin\AppData\Local\Temp\8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe
"C:\Users\Admin\AppData\Local\Temp\8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2748
- 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:2664
- - 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:2800
- - 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:916
- - 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:1672
- C:\Windows\SysWOW64\mshta.exe
  mshta.exe "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\Users\\Admin\\AppData\\Local\\Temp\\8C5914~1.EXE');close()}catch(e){}},10);"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2788

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\AppData\Roaming\trust.exe

Filesize
246KB

MD5
04742f7774cda5b58d7e5c1ba5a4e941

SHA1
a8e35ff71e0561268f8c3082bcaa2f314a272005

SHA256
8c591485357e45a09dad3116496e6f686fa11f445a6bea5ef3cd5ed1ac078821

SHA512
726974f82334c474b363d2232f21db2e04730965147e01f9ac5b8f06a44c873e78e2ee7982147c85dffb1eec40fdb445b18b67d4e25303f1dfc672f63f0b9562

Download Submit
C:\Users\Admin\Documents\PushResolve.xlsx.zendrz

Filesize
10KB

MD5
a0cf74e66c6a15e97c4f3fa9abed4329

SHA1
03c8a321270bac2880ab4b186896b43ced8abc38

SHA256
24922aea70cbc4364fc5e9914cd158956a94e5c8f7398f7fa0a97b3fec89e10d

SHA512
704dbcb777898847416ac44036aa66745d470084b9291fdc2da9c01102b7b74dc509457b3e0a2f6489d858e314cc05811e55dbf18760a9d2c9c51069e1d1e43a

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

Filesize
3KB

MD5
e7ad80688d82ad5d35754cd5915a2634

SHA1
22075c6c798d928abe2d55febb70015ba3424340

SHA256
9edf8b16c0060695096694d5a6201adc5cdc405b90911c321c64b769b61927f0

SHA512
1133684752c6e41c8a2b58b785462342c43939cf4f5a8e1c1ef06957958e6798566f1e941244e84a0d2e8a74d9525f5d7e7c0e80f4c25c82c5e1013ccb877f5f

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

Filesize
81KB

MD5
c18c217ec92076810dcfb97ce116b722

SHA1
cfffcc86042e0ff3232b395b58f7d3a9b4aa0d1e

SHA256
d6a4c9ea931b424823f17a8aec4268f40711cde72e6e45c43852b958a5c856de

SHA512
d3f475d9fa28eb3df4a34f5bd1ef0181d68fb8b0664127787ad1cd815fbf45be792805dafa24c0b55eb91444606ced01d074d5a71cba137884ba8530537e780c

Download Submit
memory/2664-547-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/2748-9-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download