Overview

overview

10

Static

static

8

test/91B5D...9D.msi

windows7_x64

8

test/91B5D...9D.msi

windows10-2004_x64

1

test/ed01e...aa.exe

windows7_x64

10

test/ed01e...aa.exe

windows10-2004_x64

10

test/fe9d7...8f.exe

windows7_x64

10

test/fe9d7...8f.exe

windows10-2004_x64

10

test/main.exe

windows7_x64

1

test/main.exe

windows10-2004_x64

10

test/main_temp.exe

windows7_x64

1

test/main_temp.exe

windows10-2004_x64

1

Sharing

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General

  • Target

    gevaarlijk.zip

  • Size

    10.0MB

  • Sample

    220119-s4d5fabbh2

  • MD5

    c117f384b6ab115669d81f393f08676a

  • SHA1

    d46a743348348da6c19d9f3d6de957c5058554f8

  • SHA256

    dac399cd370db99711be5b31c1b5935432b9cd11c5e9745e752a5a7b66ef9e67

  • SHA512

    02611f527899f52c6c042db82f77b2f73f4c66efee54b65bd3a4fa217fbc88728286769db43198eaec06a0c1b957ac044c46d1d5c4dadccb3e0c8169c74919f1

Score
10/10
flawedammyywannacrydiscoveryevasionmacromacro_on_actionpersistenceransomwarespywarestealertrojanworm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\test\@Please_Read_Me@.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\test\@Please_Read_Me@.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw Next, please find an application file named "@WanaDecryptor@.exe". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

12t9YDPgwueZ9NyMgw519p7AA8isjr6SMw

Targets

    • Target

      test/91B5DB3C0CCBD68BD04C24571E27F99D.msi

    • Size

      277KB

    • MD5

      91b5db3c0ccbd68bd04c24571e27f99d

    • SHA1

      b01cb4fe38315d41fcbe9c6278ebe4574496ab0d

    • SHA256

      ec85138598c57c6a6bdb5ed470614f582d3b5a8c6b243eb2f41b9970ea13d130

    • SHA512

      9f0b07f961625fcc06ee64fcfe5e35e0d40db81f75c3cbc584434c1925fac241db69cac3c1a1bf329d965a4df9bdaa53c13bb8ea3206e2c9d4facf7f74ba21b7

    Score
    8/10

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1behavioral2

    • Target

      test/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa.exe

    • Size

      3.4MB

    • MD5

      84c82835a5d21bbcf75a61706d8ab549

    • SHA1

      5ff465afaabcbf0150d1a3ab2c2e74f3a4426467

    • SHA256

      ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa

    • SHA512

      90723a50c20ba3643d625595fd6be8dcf88d70ff7f4b4719a88f055d5b3149a4231018ea30d375171507a147e59f73478c0c27948590794554d031e7d54b7244

    Score
    10/10
    wannacrydiscoveryransomwarewormspywarestealer

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer
    behavioral3behavioral4

    • Target

      test/fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f.exe

    • Size

      3.6MB

    • MD5

      743a6891999db5d7179091aba5f98fdb

    • SHA1

      eeca4b8f88fcae9db6f54304270699d459fb5722

    • SHA256

      fe9d72dd4b046bafdd144902ab570297629f83d06afb5a9ba7703382a29d588f

    • SHA512

      9edef033663c828536190332ec87ac0096ffddae934d17c51b255a55ecb05774211a0edb1915c19384641befa291cfdfd2e3f878bf3b827f8b203ec1bee9dd96

    Score
    10/10
    flawedammyyevasionpersistencetrojan

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

      trojanflawedammyy

    • Creates new service(s)

      persistence

    • Executes dropped EXE

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral5behavioral6

    • Target

      test/main.exe

    • Size

      2.2MB

    • MD5

      5ffb3bfb8e0b0002d940ad4707d1c504

    • SHA1

      ed6402ebc9050fd7c85384ec88343c556df3a71e

    • SHA256

      aa80d3eaee384c8a0ba25b3d501dc0c83f7405190ae47877595fc63cf3161dcf

    • SHA512

      3f05b5c0c80223ecff25f7c8c6a1d6b6462e80ca918f526b6fe0e229f0c1631ea25bf0f856338551e32f8cf9a2a0c838941136cd788ae89b1826aaeeb2a2ccf0

    Score
    10/10
    persistence

    • Registers COM server for autorun

      persistence

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral7behavioral8

    • Target

      test/main_temp.exe

    • Size

      2.6MB

    • MD5

      52bbc76cac35134534361c33a583b87a

    • SHA1

      45db17d6796da108f3f6bdb89f04365ae7d488ee

    • SHA256

      d26349b86c9428c0c18df9403b85d2443b866b0e7b99a4a1c8254bd0155326fd

    • SHA512

      9cb6821313018064887a635f74512d947a8425f7093f6284aab776d87eb3914b012156e51fce7f8911daf8d66fdeaa4e6206b3d621ed380c547a1c3c2d0bcbc1

    Score
    1/10
    behavioral9behavioral10

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1
T1158

New Service

1
T1050

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

New Service

1
T1050

Defense Evasion

File Permissions Modification

1
T1222

Hidden Files and Directories

1
T1158

Modify Registry

6
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

5
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

8
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Tasks