General

  • Target

    a85fc38903152fcf020fb5ac1d90aa10.exe

  • Size

    164KB

  • Sample

    230714-3v5wxagd85

  • MD5

    a85fc38903152fcf020fb5ac1d90aa10

  • SHA1

    caab463070bc5b97431e19344541f01fb06a0883

  • SHA256

    2f114f5d0e6063b5c3c3276bdbd20766a102b49dd48dce74d142eefa07c7cda5

  • SHA512

    6f591a5f75fad096dff024b745a5ca0219a149a93f38e47ebeaebfaa70a2694f524611fbfbeb559ade7818a6fcf16151b5521c720dec3472e2127c3c6fba87a2

  • SSDEEP

    3072:yCLITMy2+o6bVAR9PMfBMbsIFD9T3WUNztymtohPwM5AJY:HLIgy7refNPFRWUptJR9O

Malware Config

Extracted

Family

smokeloader

Botnet

summ

Extracted

Family

smokeloader

Version

2022

C2

http://stalagmijesarl.com/

http://ukdantist-sarl.com/

http://cpcorprotationltd.com/

http://serverxlogs21.xyz/statweb255/

http://servxblog79.xyz/statweb255/

http://demblog289.xyz/statweb255/

http://admlogs77x.online/statweb255/

http://blogxstat38.xyz/statweb255/

http://blogxstat25.xyz/statweb255/

rc4.i32
rc4.i32
rc4.i32
rc4.i32

Extracted

Family

systembc

C2

adstat477d.xyz:4044

demstat577d.xyz:4044

Extracted

Family

lumma

C2

gstatic-node.io

Targets

    • Target

      a85fc38903152fcf020fb5ac1d90aa10.exe

    • Size

      164KB

    • MD5

      a85fc38903152fcf020fb5ac1d90aa10

    • SHA1

      caab463070bc5b97431e19344541f01fb06a0883

    • SHA256

      2f114f5d0e6063b5c3c3276bdbd20766a102b49dd48dce74d142eefa07c7cda5

    • SHA512

      6f591a5f75fad096dff024b745a5ca0219a149a93f38e47ebeaebfaa70a2694f524611fbfbeb559ade7818a6fcf16151b5521c720dec3472e2127c3c6fba87a2

    • SSDEEP

      3072:yCLITMy2+o6bVAR9PMfBMbsIFD9T3WUNztymtohPwM5AJY:HLIgy7refNPFRWUptJR9O

    • Detect rhadamanthys stealer shellcode

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Deletes itself

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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.

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Command-Line Interface

1
T1059

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

3
T1107

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

4
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Impact

Inhibit System Recovery

4
T1490

Tasks