General

  • Target

    SolaraB_41725097.exe

  • Size

    9.5MB

  • Sample

    240522-2hd2zsbe4w

  • MD5

    3d50042e3e3991be509f56a2951a2183

  • SHA1

    f027790afe9d7ce2ddf17973f0778fb9e983ded1

  • SHA256

    76eee256f1223082e8396611baca498542c656edd0fac5fe903e06e6cb5677e2

  • SHA512

    120c6a7778bd9f65f469d3335987b780e736bd895ed944d0988372f891b48f9ba09b50ed9dcffd0bf1fa23a12e215ed1f1ffe75d11c925ff4c08d3e48259a873

  • SSDEEP

    196608:xoEToOU9+86NdnrqNnHmQ3bKfIiaNPFHNRsiK:xLTtU/QxrqNHL3bIIiEHMn

Malware Config

Targets

    • Target

      SolaraB_41725097.exe

    • Size

      9.5MB

    • MD5

      3d50042e3e3991be509f56a2951a2183

    • SHA1

      f027790afe9d7ce2ddf17973f0778fb9e983ded1

    • SHA256

      76eee256f1223082e8396611baca498542c656edd0fac5fe903e06e6cb5677e2

    • SHA512

      120c6a7778bd9f65f469d3335987b780e736bd895ed944d0988372f891b48f9ba09b50ed9dcffd0bf1fa23a12e215ed1f1ffe75d11c925ff4c08d3e48259a873

    • SSDEEP

      196608:xoEToOU9+86NdnrqNnHmQ3bKfIiaNPFHNRsiK:xLTtU/QxrqNHL3bIIiEHMn

    • 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.

    • 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.

    • Checks for any installed AV software in registry

    • Checks whether UAC is enabled

    • Downloads MZ/PE file

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Checks computer location settings

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Peripheral Device Discovery

1
T1120

Process Discovery

1
T1057

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks