Analysis
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max time kernel
254s -
max time network
336s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 19:53
Static task
static1
Behavioral task
behavioral1
Sample
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe
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Size
128KB
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MD5
d5478c8da220ebe1784bdb8c289e1dd4
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SHA1
e9b9cfd5e5684567733129fddd35e62af5caa1f6
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SHA256
b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4
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SHA512
f33c40237b5df882a1b6e01f696c4fd054b889acc347800155d39d8f752864cd6b0cd733a832a1c088a602fca358aeac557c0aa50075939e8a33ea707382ac85
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SSDEEP
1536:wuGs/90+l3R4amUwucNKI4PXaLhR8eHnuXcFBnbStr6O+o/dJNZWW7fob:wlUxPXER8eOkBWoiTgW7G
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" mieafo.exe -
Executes dropped EXE 1 IoCs
pid Process 1880 mieafo.exe -
Loads dropped DLL 2 IoCs
pid Process 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe -
Adds Run key to start application 2 TTPs 51 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /S" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /m" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /F" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /g" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /H" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /Z" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /Y" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /W" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /d" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /u" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /f" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /w" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /E" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /b" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /x" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /O" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /X" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /l" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /c" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /A" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /v" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /P" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /J" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /o" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /N" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /p" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /e" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /k" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /s" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /j" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /M" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /r" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /t" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /K" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /L" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /R" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /h" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /y" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /H" b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /V" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /Q" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /U" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /T" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /G" mieafo.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /n" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /C" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /z" mieafo.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /I" mieafo.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\mieafo = "C:\\Users\\Admin\\mieafo.exe /a" mieafo.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe 1880 mieafo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 1880 mieafo.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 428 wrote to memory of 1880 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 28 PID 428 wrote to memory of 1880 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 28 PID 428 wrote to memory of 1880 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 28 PID 428 wrote to memory of 1880 428 b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe"C:\Users\Admin\AppData\Local\Temp\b892dd6ec3b868e7b625bb5f90cb9f7f0beeb9f4f67a395eea986d852a885bf4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:428 -
C:\Users\Admin\mieafo.exe"C:\Users\Admin\mieafo.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1880
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
128KB
MD56e52e6ac22026c6e65242e36847924cb
SHA136cef4d5f4ccf51889a4beef701747e27f34fdda
SHA256b54cd20696f539824de515d7ee5cf3d4be3440758f44ea9344dc4225350ff7d0
SHA51286afcf1db07a0dc5972c33c110edd93eeaa93d1003a8fa71bb4b45bc81473eaad808c97c2064db554e3025cc7f66059473dd9e5ea2701465dad046170133a35c
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Filesize
128KB
MD56e52e6ac22026c6e65242e36847924cb
SHA136cef4d5f4ccf51889a4beef701747e27f34fdda
SHA256b54cd20696f539824de515d7ee5cf3d4be3440758f44ea9344dc4225350ff7d0
SHA51286afcf1db07a0dc5972c33c110edd93eeaa93d1003a8fa71bb4b45bc81473eaad808c97c2064db554e3025cc7f66059473dd9e5ea2701465dad046170133a35c
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Filesize
128KB
MD56e52e6ac22026c6e65242e36847924cb
SHA136cef4d5f4ccf51889a4beef701747e27f34fdda
SHA256b54cd20696f539824de515d7ee5cf3d4be3440758f44ea9344dc4225350ff7d0
SHA51286afcf1db07a0dc5972c33c110edd93eeaa93d1003a8fa71bb4b45bc81473eaad808c97c2064db554e3025cc7f66059473dd9e5ea2701465dad046170133a35c
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Filesize
128KB
MD56e52e6ac22026c6e65242e36847924cb
SHA136cef4d5f4ccf51889a4beef701747e27f34fdda
SHA256b54cd20696f539824de515d7ee5cf3d4be3440758f44ea9344dc4225350ff7d0
SHA51286afcf1db07a0dc5972c33c110edd93eeaa93d1003a8fa71bb4b45bc81473eaad808c97c2064db554e3025cc7f66059473dd9e5ea2701465dad046170133a35c