General

  • Target

    bfa68a461642099d9cee4db76cf0f4fa93e7718e9dd9ed4ff0f5aa891150622d

  • Size

    11.0MB

  • Sample

    220219-q6zg2sadg8

  • MD5

    b0f27988343b88109e3619ec71ba1ea6

  • SHA1

    89dae3b3297c3f872af2387200658defa9e29053

  • SHA256

    bfa68a461642099d9cee4db76cf0f4fa93e7718e9dd9ed4ff0f5aa891150622d

  • SHA512

    62e70b79c90b1093c793f3f02b7e9fcdbd0ffc7fe3a3584c894c2a1fc844449bf7145c4785f9bd841b35dffb8d4f4073c79a3e5dd55ecf72f4dd96cac3c94f63

Malware Config

Extracted

Family

socelars

C2

https://sa-us-bucket.s3.us-east-2.amazonaws.com/sagdys/

Targets

    • Target

      bfa68a461642099d9cee4db76cf0f4fa93e7718e9dd9ed4ff0f5aa891150622d

    • Size

      11.0MB

    • MD5

      b0f27988343b88109e3619ec71ba1ea6

    • SHA1

      89dae3b3297c3f872af2387200658defa9e29053

    • SHA256

      bfa68a461642099d9cee4db76cf0f4fa93e7718e9dd9ed4ff0f5aa891150622d

    • SHA512

      62e70b79c90b1093c793f3f02b7e9fcdbd0ffc7fe3a3584c894c2a1fc844449bf7145c4785f9bd841b35dffb8d4f4073c79a3e5dd55ecf72f4dd96cac3c94f63

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine Payload

    • Socelars

      Socelars is an infostealer targeting browser cookies and credit card credentials.

    • Socelars Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

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

    • XMRig Miner Payload

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

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

    • 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.

    • 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

    • Adds Run key to start application

    • 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.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

3
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Tasks