Analysis
-
max time kernel
130s -
max time network
133s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
20-10-2021 09:21
General
-
Target
de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d.exe
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Size
94KB
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MD5
993b73d6490bc5a7e23e02210b317247
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SHA1
6fd314af34409e945504e166eb8cd88127c1070e
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SHA256
de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d
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SHA512
417f55a066896695ce1b8d998767f706005d3d6f1792f2b86261a235034a6c3bb1deae6920857fbc710d22b833479b2cbeafd92735381f1cc357adcc8a74c55d
Score
10/10
Malware Config
Extracted
Path
C:\odt\A2D63-Readme.txt
Family
netwalker
Ransom Note
Hi!
Your files are encrypted.
All encrypted files for this computer has extension: .a2d63
--
If for some reason you read this text before the encryption ended,
this can be understood by the fact that the computer slows down,
and your heart rate has increased due to the ability to turn it off,
then we recommend that you move away from the computer and accept that you have been compromised,
rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you,
it could be files on the network belonging to other users, sure you want to take that responsibility?
--
Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help.
The only way to get your files back is to cooperate with us and get the decrypter program.
Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover.
We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned.
For us this is just business and to prove to you our seriousness, we will decrypt you some files for free,
but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision.
Contact us:
1.knoocknoo@cock.li
2.eeeooppaaaxxx@tuta.io
Don't forget to include your code in the email:
{code_1b1ea859_a2d63:
V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg
/cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage
G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6
YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG
bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT
GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}
Emails
knoocknoo@cock.li
eeeooppaaaxxx@tuta.io
Extracted
Path
C:\Users\Admin\AppData\Roaming\A2D63-Readme.txt
Family
netwalker
Ransom Note
Hi!
Your files are encrypted.
All encrypted files for this computer has extension: .a2d63
--
If for some reason you read this text before the encryption ended,
this can be understood by the fact that the computer slows down,
and your heart rate has increased due to the ability to turn it off,
then we recommend that you move away from the computer and accept that you have been compromised,
rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you,
it could be files on the network belonging to other users, sure you want to take that responsibility?
--
Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help.
The only way to get your files back is to cooperate with us and get the decrypter program.
Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover.
We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned.
For us this is just business and to prove to you our seriousness, we will decrypt you some files for free,
but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision.
Contact us:
1.knoocknoo@cock.li
2.eeeooppaaaxxx@tuta.io
Don't forget to include your code in the email:
{code_1b1ea859_a2d63:
V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg
/cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage
G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6
YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG
bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT
GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}Hi!
Your files are encrypted.
All encrypted files for this computer has extension: .a2d63
--
If for some reason you read this text before the encryption ended,
this can be understood by the fact that the computer slows down,
and your heart rate has increased due to the ability to turn it off,
then we recommend that you move away from the computer and accept that you have been compromised,
rebooting/shutdown will cause you to lose files without the possibility of recovery and even god will not be able to help you,
it could be files on the network belonging to other users, sure you want to take that responsibility?
--
Our encryption algorithms are very strong and your files are very well protected, you can't hope to recover them without our help.
The only way to get your files back is to cooperate with us and get the decrypter program.
Do not try to recover your files without a decrypt program, you may damage them and then they will be impossible to recover.
We advise you to contact us as soon as possible, otherwise there is a possibility that your files will never be returned.
For us this is just business and to prove to you our seriousness, we will decrypt you some files for free,
but we will not wait for your letter for a long time, mail can be abused, we are moving on, hurry up with the decision.
Contact us:
1.knoocknoo@cock.li
2.eeeooppaaaxxx@tuta.io
Don't forget to include your code in the email:
{code_1b1ea859_a2d63:
V6RDuHNbgGVtcrSKiRSkrbCAyttmSwsQGYnMn/65kF0q6XqaDg
/cnVmF7YfLsLd35MG01hBug/9yPfooToj/DygT5yfR6a13Wage
G/ThEh+Q3vJA+Hq2FJsKBluPwAp1YKyCMSCZkgoi4lib93nYH6
YcdTLnlXnOhSQGQrbeH9uBfZidXpQ2xYqU9Xr+rRiBvfncbVzG
bFhtujPNAyiizLAl+vel3YFnNdEFCCIKLiL1YkvaZ8GfScF5JT
GwVO3gVx4soWUVnVrBfj9EwX/AcSkfmCM=}
Emails
knoocknoo@cock.li
eeeooppaaaxxx@tuta.io
Signatures
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Detected Netwalker Ransomware 2 IoCs
Detected unpacked Netwalker executable.
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Netwalker Ransomware
Ransomware family with multiple versions. Also known as MailTo.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies extensions of user files 2 IoCs
Ransomware generally changes the extension on encrypted files.
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Deletes itself 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Drops file in Program Files directory 64 IoCs
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: MapViewOfSection 2 IoCs
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Suspicious use of AdjustPrivilegeToken 6 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d.exe"C:\Users\Admin\AppData\Local\Temp\de04d2402154f676f757cf1380671f396f3fc9f7dbb683d9461edd2718c4e09d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"2⤵
- Modifies extensions of user files
- Deletes itself
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe delete shadows /all /quiet4⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\notepad.exeC:\Windows\system32\notepad.exe "C:\Users\Admin\Desktop\A2D63-Readme.txt"3⤵
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C:\Windows\system32\vssadmin.exeC:\Windows\system32\vssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\A2D63-Readme.txt1⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\Desktop\A2D63-Readme.txtMD5
21023b4f94067b6b71afc6f07554ed12
SHA15717d119f17a52a7a3d5fb6ed515bb9f3f50bf72
SHA2567ca20b2cbb8fe9b73a624871212c285263f0a571e7f639d632029bd727ab4a28
SHA5120e41dfb43abca29505e7c0b2a729ca6c0d909dc2fd2bba3198248985e794f41920f403e78a361e556c9ad9b6516523966801efaa130bf47258319ed10df55f89
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C:\Users\Admin\Desktop\A2D63-Readme.txtMD5
21023b4f94067b6b71afc6f07554ed12
SHA15717d119f17a52a7a3d5fb6ed515bb9f3f50bf72
SHA2567ca20b2cbb8fe9b73a624871212c285263f0a571e7f639d632029bd727ab4a28
SHA5120e41dfb43abca29505e7c0b2a729ca6c0d909dc2fd2bba3198248985e794f41920f403e78a361e556c9ad9b6516523966801efaa130bf47258319ed10df55f89
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memory/1428-119-0x0000000000000000-mapping.dmp
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memory/2264-116-0x0000000000000000-mapping.dmp
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memory/2264-118-0x0000000000450000-0x000000000046B000-memory.dmpFilesize
108KB
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memory/3800-115-0x0000000000000000-mapping.dmp
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memory/3800-117-0x0000000000540000-0x000000000055B000-memory.dmpFilesize
108KB
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memory/4220-121-0x0000000000000000-mapping.dmp
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memory/9992-122-0x0000000000000000-mapping.dmp