Overview

overview

10

Static

static

BleachGap.bin.exe

windows7_x64

10

BleachGap.bin.exe

windows10_x64

10

Sharing

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General

  • Target

    BleachGap.bin.zip

  • Size

    955KB

  • Sample

    210227-sdhxxb9tms

  • MD5

    c0db7ee3f960c969bdf02be2d5c719e7

  • SHA1

    6ea7694b8474aebe6b0821a425cc95be536e6c5c

  • SHA256

    a84f1837031f236302dc335ea0d285e4c9e223631ae2702a0d6176a743018161

  • SHA512

    d6b86f856d2990284e0f5f5fec7b829d33f4b771eac4cc085b92fb72849257bd890ee28ac6bbdf4029016aa7b748fd7b86e63fae9074509c451ef7196b8f0370

Score
10/10
evasionpersistenceransomwaretrojanupx

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://cdn-115.anonfiles.com/9821W1G5p3/542b7e19-1612884386/gameover.exe

Targets

    • Target

      BleachGap.bin

    • Size

      1001KB

    • MD5

      015bb16ddcbf8a6326ec859020466c05

    • SHA1

      f0ff1059e64175c8bf3f557cf1b0f49ed105d7d4

    • SHA256

      c1eb88cc7f7b43de1ef71fae416c729483d71fa930314c36dfb03b01b8455d31

    • SHA512

      588051f1702c69b96168c9bfa41bdb9aaffdf48bf3178e30ee1bf1510989a1b43b1032b9b002f81907428182a050befc9b00143b4991c47131bcb4b25dfc83c5

    Score
    10/10
    evasionransomwaretrojanupxpersistence

    • UAC bypass

      evasiontrojan

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Blocklisted process makes network request

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • Modifies Installed Components in the registry

      persistence

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • UPX packed file

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

      upx

    • Drops startup file

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Hidden Files and Directories

2
T1158

Scheduled Task

1
T1053

Privilege Escalation

Bypass User Account Control

1
T1088

Scheduled Task

1
T1053

Defense Evasion

Bypass User Account Control

1
T1088

Disabling Security Tools

1
T1089

Modify Registry

2
T1112

File Deletion

2
T1107

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

3
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2
T1490

Tasks