Overview

overview

10

Static

static

10

amostra.bin.exe

windows7-x64

10

amostra.bin.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    39s
  • max time network
    103s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2023 04:43

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General

  • Target

    amostra.bin.exe

  • Size

    80KB

  • MD5

    e3269531cf93d040b08074bfb31b72a0

  • SHA1

    45b6d89dcea02cc90ae054d72ec80a2eb1036a7e

  • SHA256

    3a7265305386f955adbeb6bd7c711f03395963ac36be82e5bb6b1d7b2034c859

  • SHA512

    e4de5613557ff15f23e2c28763fee6443c81351401974389e1c01cb979efc81c0ff397b85ba3fc6f0204f7c5e0c7617617130d38b441748446e72a0fbb7a12b0

  • SSDEEP

    1536:NE+VYVYMC2F7Aoter2j1lYgpM2HT02F4mHI5PsOqy:2+G3eaj0g+2HT025Hs

Score
10/10
blackmatterransomwareupx

Malware Config

Extracted

Family

blackmatter

Version

1.2

Extracted

Path

C:\VLce3d0et.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We have downloaded 1TB from your fileserver. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >> Data leak includes 1. Full emloyeers personal data 2. Network information 3. Schemes of buildings, active project information, architect details and contracts, 4. Finance info >>> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 9 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Modifies Control Panel 3 IoCs
    evasion
  • Modifies system certificate store 2 TTPs 6 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\amostra.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\amostra.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2024
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:976

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    e71c8443ae0bc2e282c73faead0a6dd3

    SHA1

    0c110c1b01e68edfacaeae64781a37b1995fa94b

    SHA256

    95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72

    SHA512

    b38458c7fa2825afb72794f374827403d5946b1132e136a0ce075dfd351277cf7d957c88dc8a1e4adc3bcae1fa8010dae3831e268e910d517691de24326391a6

    Download Submit
  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    9dcd93da12520188dc369d0fc1a499d1

    SHA1

    91c6eed6fd4534a167cffa3b67c2a4585e060c5d

    SHA256

    13e1a6b0b43c1f2a36e4736ed170c00a4e796cbccb9f5a55e93c8fd8b4f8805d

    SHA512

    f1d568eb9ba285c1a142ec71d1312b75fc198641aa07d5dc1e27cf77a0ac2ba438d7a141023ede8d056921bee6b27a7c54b734722d6772f26b78321655f07f9e

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Cab20CD.tmp
    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\Tar243D.tmp
    Filesize

    161KB

    MD5

    be2bec6e8c5653136d3e72fe53c98aa3

    SHA1

    a8182d6db17c14671c3d5766c72e58d87c0810de

    SHA256

    1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd

    SHA512

    0d1424ccdf0d53faf3f4e13d534e12f22388648aa4c23edbc503801e3c96b7f73c7999b760b5bef4b5e9dd923dffe21a21889b1ce836dd428420bf0f4f5327ff

    Download Submit
  • C:\VLce3d0et.README.txt
    Filesize

    1KB

    MD5

    f66968c47a64569e2281f65a95991be0

    SHA1

    ef9e3e80bfbea4c3021b226cb8cd00687013b8a8

    SHA256

    4b950c763006e7c4569df8742855cec31bf82f835bd7e2bdcb5f128db34c82bf

    SHA512

    cb4ace1b3e891ab100b3950c6bc133b216e91c8978a3af1ffd75617b606bb7ceb0133f44d37a30a827655e5b84b016d736a732f5f37635bb727e1a5b722cad24

    Download Submit
  • memory/2024-55-0x0000000000290000-0x00000000002D0000-memory.dmp
    Filesize

    256KB

    Download
  • memory/2024-54-0x0000000000A90000-0x0000000000AA7000-memory.dmp
    Filesize

    92KB

    Download
  • memory/2024-56-0x0000000000290000-0x00000000002D0000-memory.dmp
    Filesize

    256KB

    Download
  • memory/2024-356-0x0000000000A90000-0x0000000000AA7000-memory.dmp
    Filesize

    92KB

    Download