471f3fb1a953fab38be3081eb835574694bc72b94f239edc400d1ce3d7a8ecb0

Analysis

max time kernel
93s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 09:21

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General

Target

845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe
Size

246KB
MD5

7f61ab7160ccea4f69fed025fbbfdb30
SHA1

88d06d4124bca680bf28dde09cc1c3995002eef3
SHA256

845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8
SHA512

8ff46db7d1bfddef6bab676c1439207a7b755280720bf83406d95a700eac364ef667978a7e538cc3d6e2836487b38ddc34df288100b510e32d16f013ffd07d98
SSDEEP

6144:clmE5hV/XRG4FmeAs32AcNhunE+AWTWk6+wv:2/XRG4FdAs32AeOWk

Score

9^/10

discovery persistence ransomware

Malware Config

Signatures

Renames multiple (129) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe

Executes dropped EXE 1 IoCs

pid	Process
3056	trust.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\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\SG = "C:\\Users\\Admin\\AppData\\Roaming\\trust.exe"	mshta.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4752	3056	WerFault.exe	83

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	mshta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	trust.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3224 wrote to memory of 3056	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	83
PID 3224 wrote to memory of 3056	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	83
PID 3224 wrote to memory of 3056	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	83
PID 3224 wrote to memory of 4088	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	84
PID 3224 wrote to memory of 4088	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	84
PID 3224 wrote to memory of 4088	3224	845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe	84
PID 3056 wrote to memory of 3768	3056	trust.exe	85
PID 3056 wrote to memory of 3768	3056	trust.exe	85
PID 3056 wrote to memory of 3768	3056	trust.exe	85

C:\Users\Admin\AppData\Local\Temp\845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe
"C:\Users\Admin\AppData\Local\Temp\845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3224
- C:\Users\Admin\AppData\Roaming\trust.exe
  "C:\Users\Admin\AppData\Roaming\trust.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3056
- - 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
    PID:3768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3056 -s 720
    3⤵
    - Program crash
    PID:4752
- C:\Windows\SysWOW64\mshta.exe
  mshta.exe "javascript:o=new ActiveXObject('Scripting.FileSystemObject');setInterval(function(){try{o.DeleteFile('C:\\Users\\Admin\\AppData\\Local\\Temp\\845263~1.EXE');close()}catch(e){}},10);"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3056 -ip 3056
1⤵
PID:2516

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\trust.exe

Filesize
246KB

MD5
7f61ab7160ccea4f69fed025fbbfdb30

SHA1
88d06d4124bca680bf28dde09cc1c3995002eef3

SHA256
845263c86931440e934cf40f4461dc14903a474f6f5eab4773482842855ba1c8

SHA512
8ff46db7d1bfddef6bab676c1439207a7b755280720bf83406d95a700eac364ef667978a7e538cc3d6e2836487b38ddc34df288100b510e32d16f013ffd07d98

Download Submit
C:\Users\Admin\Music\Read Me Please.hta

Filesize
3KB

MD5
437823aed7d232ba92060a44cb61dcec

SHA1
d6aaa1f701762846c95fabb4fcc65ce7fff36b64

SHA256
43b6cf5496192ebea091c89c39ad6996a8c7f7bd8d3039050d51be8c9ad1908a

SHA512
0eeaf7ffff1931ad4ca1072ce1ebe004640f9406136bdc123e677bc428eac6914035c00d9b1d6bd0db5bb8408bd807db9f85a1496660de02c77f07acddad2820

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

Filesize
81KB

MD5
0895b254ac1d4d9091799818bf2cf830

SHA1
f1678b2850df7b9355aa66e683ea0f12b3a03b5a

SHA256
2efab988280adc6cbc5ade3d4d32f1d9d46bf63759cb905b0ba049555180e872

SHA512
6463ea222fb59e97bf4243bca00e03ecbff0d553f1f44f4e3f606aec3ea85c407945ac91740162d69cdc73ba70cdc67dccc0b47e348fe58ab753a547c36fd2dd

Download Submit
memory/3056-353-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3056-409-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download
memory/3224-8-0x0000000000400000-0x0000000000445000-memory.dmp

Filesize
276KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads