General

  • Target

    52a70a809294561f69bb7016818e295779d8e00c797097cf77d534ed3a07dd2c.zip

  • Size

    7.2MB

  • Sample

    230321-rxraraba95

  • MD5

    9c83b919476cfc3f6e9ed04b0bee98f2

  • SHA1

    db650e0faf61e81121378a91a6f6f2aeae14cbf1

  • SHA256

    91ea51ee5700fb722b5a2b0bc3f6ec628d47cbe91a134d809d65c5fb085ab4c7

  • SHA512

    d3d1675426b45b868268f600ee88595a818fd2ddbb164855cc2e5365e97c174257b6715432afbb25238ec6cfd26029cdcbe33aa3933b66fabd49c67e5c72d6b3

  • SSDEEP

    196608:2MAvxhwDLAR8pG6y3WhuzYDjipP5kGlekafKn9bx5J:VAv2eQo1zYePJIkaSbx5J

Malware Config

Targets

    • Target

      52a70a809294561f69bb7016818e295779d8e00c797097cf77d534ed3a07dd2c.exe

    • Size

      7.5MB

    • MD5

      d32cd492ab44503128b89ba0ae6778cb

    • SHA1

      78c4d59a96f7e025fa7ebe80030fd9bb4547d21a

    • SHA256

      52a70a809294561f69bb7016818e295779d8e00c797097cf77d534ed3a07dd2c

    • SHA512

      028b44c1eea7142e8f50d17d3de28030255689ff53cc4ef9dc505fb6feef649edbb1a59e8796ce84222e94d370b7ddc9d1aee3baff946e4862529d310641f64e

    • SSDEEP

      196608:utjk/L5eZGBmm5t+fYOBaBMVrLWD+o88Vl:qxGBpIf9jVWD+o8sl

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

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • 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

    • Maps connected drives based on registry

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

    • 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

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

2
T1005

Tasks