General

  • Target

    6f6df17ecbcbdce8c857e85a368801a9

  • Size

    383KB

  • Sample

    211218-mns1rsegh6

  • MD5

    6f6df17ecbcbdce8c857e85a368801a9

  • SHA1

    03491534e6c3fc9627899be5f9d7b053da57dfab

  • SHA256

    23ae7c16bd46eb8cb7a8c34e6d903c0bb613628245a9471db6f31fd27b12e06d

  • SHA512

    57efc2bbaf4ff80022bd7bae17371ff894c6f73482e9c7d2f6c25b548a922f225396bce441348c06a8723e9922cb99e1628e7c5b98de22f8e50446af548403de

Malware Config

Extracted

Family

cryptbot

C2

sezdne62.top

morgwa06.top

Attributes
  • payload_url

    http://ekuwac17.top/download.php?file=boulle.exe

Extracted

Family

danabot

Botnet

4

C2

142.11.244.223:443

23.106.122.139:443

Attributes
  • embedded_hash

    0FA95F120D6EB149A5D48E36BC76879D

  • type

    loader

rsa_pubkey.plain
rsa_privkey.plain

Targets

    • Target

      6f6df17ecbcbdce8c857e85a368801a9

    • Size

      383KB

    • MD5

      6f6df17ecbcbdce8c857e85a368801a9

    • SHA1

      03491534e6c3fc9627899be5f9d7b053da57dfab

    • SHA256

      23ae7c16bd46eb8cb7a8c34e6d903c0bb613628245a9471db6f31fd27b12e06d

    • SHA512

      57efc2bbaf4ff80022bd7bae17371ff894c6f73482e9c7d2f6c25b548a922f225396bce441348c06a8723e9922cb99e1628e7c5b98de22f8e50446af548403de

    • CryptBot

      A C++ stealer distributed widely in bundle with other software.

    • Danabot

      Danabot is a modular banking Trojan that has been linked with other malware.

    • Danabot Loader Component

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Deletes itself

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks