Overview

overview

10

Static

static

1

C4Loader.exe

windows7-x64

10

C4Loader.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    C4Loader.exe

  • Size

    1.1MB

  • Sample

    230311-j5kh6sgh95

  • MD5

    39ce2b13bacdce1889b3ac7addcd471b

  • SHA1

    5f75e695bbdca7994d62fe8aa4b3c5cd121bfc23

  • SHA256

    104210a3f5ffe91ed31b25eaa45a7cad6aaaa01e54b4e24ae10d9c86d0c91a42

  • SHA512

    26ca64c01b3847f744bca32c608d4a4f379f045f8e3db5becd0c35b80d34366e15aa9cb901c533b84a1910ca21f05c63655c0b955a810b1c34d8877284ddd889

  • SSDEEP

    3072:ZwiwPz+huH7liXb6QF45A6Nmn0+Q/ycdIwYioOAg0FujDgtNs1bDew:CiEoX2Qm5A10+QacpDAOIs1bDew

Score
10/10
auroraevasionspywarestealer

Malware Config

Extracted

Family

aurora

C2

107.182.129.73:8081

Targets

    • Target

      C4Loader.exe

    • Size

      1.1MB

    • MD5

      39ce2b13bacdce1889b3ac7addcd471b

    • SHA1

      5f75e695bbdca7994d62fe8aa4b3c5cd121bfc23

    • SHA256

      104210a3f5ffe91ed31b25eaa45a7cad6aaaa01e54b4e24ae10d9c86d0c91a42

    • SHA512

      26ca64c01b3847f744bca32c608d4a4f379f045f8e3db5becd0c35b80d34366e15aa9cb901c533b84a1910ca21f05c63655c0b955a810b1c34d8877284ddd889

    • SSDEEP

      3072:ZwiwPz+huH7liXb6QF45A6Nmn0+Q/ycdIwYioOAg0FujDgtNs1bDew:CiEoX2Qm5A10+QacpDAOIs1bDew

    Score
    10/10
    auroraevasionspywarestealer

    • Aurora

      Aurora is a crypto wallet stealer written in Golang.

      stealeraurora

    • Modifies security service

      evasion

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

      evasion

    • 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.

      spywarestealer

    • Accesses cryptocurrency files/wallets, possible credential harvesting

      spyware

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Modify Existing Service

2
T1031

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Impair Defenses

1
T1562

Credential Access

Credentials in Files

2
T1081

Discovery

System Information Discovery

1
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Service Stop

1
T1489

Tasks