General

  • Target

    Skinschanger.exe

  • Size

    1.1MB

  • Sample

    211230-mbc4saecgr

  • MD5

    be277c5f2029e1e98383ddc3e6029a46

  • SHA1

    22e0a61b66d565190e0647057037b7c144cc0878

  • SHA256

    4fce37e360ca280e7aca9ce2eacef82c77a4b7d62bf23a447fe582ad79847d4d

  • SHA512

    8571976840e4e2608a965cf22cf6dbbc834e467b3b7b97e0fcb8d268bb0c1eebccdc72f8ed238bef8a17fecedd1e85e3e7d0d76e8a6edfc052e2b7c31a658152

Malware Config

Extracted

Family

redline

C2

45.153.184.61:34783

Extracted

Family

redline

Botnet

cheat

C2

45.147.196.146:6213

Extracted

Family

raccoon

Botnet

e9f10fade0328e7cef5c9f5bf00076086ba5a8a1

Attributes
  • url4cnc

    http://91.219.236.18/baldandbankrupt1

    http://194.180.174.41/baldandbankrupt1

    http://91.219.236.148/baldandbankrupt1

    https://t.me/baldandbankrupt1

rc4.plain
rc4.plain

Targets

    • Target

      Skinschanger.exe

    • Size

      1.1MB

    • MD5

      be277c5f2029e1e98383ddc3e6029a46

    • SHA1

      22e0a61b66d565190e0647057037b7c144cc0878

    • SHA256

      4fce37e360ca280e7aca9ce2eacef82c77a4b7d62bf23a447fe582ad79847d4d

    • SHA512

      8571976840e4e2608a965cf22cf6dbbc834e467b3b7b97e0fcb8d268bb0c1eebccdc72f8ed238bef8a17fecedd1e85e3e7d0d76e8a6edfc052e2b7c31a658152

    • Modifies Windows Defender Real-time Protection settings

    • Raccoon

      Simple but powerful infostealer which was very active in 2019.

    • RedLine

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

    • RedLine Payload

    • Suspicious use of NtCreateProcessExOtherParentProcess

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Disabling Security Tools

1
T1089

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

Tasks