Overview

overview

10

Static

static

10

ac1906fa0c...c4.exe

windows7-x64

10

ac1906fa0c...c4.exe

windows10-2004-x64

10

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General

  • Target

    ac1906fa0c648d42c3e1b0c7b70b0e7c0c68888d90dc4.exe

  • Size

    112KB

  • Sample

    220815-njvjgaaafp

  • MD5

    952abab48bb5bf1cf5f8fc585af985c4

  • SHA1

    bab0ddca75b73a8ccb7f24f4abb1e22d67bec7d4

  • SHA256

    ac1906fa0c648d42c3e1b0c7b70b0e7c0c68888d90dc48c81b225f0932cdb258

  • SHA512

    259b01ce8950e9a4f9c2f24525515e7b61e904090c8d499f40c0430b7af5ca3ef533ed5fa84899c50c0c19087409db47c2e72eb7ac2b6aa98a4eb7b43d56573b

Score
10/10
redlineremcosxmrig1137502411paintstudiscoveryevasionexploitinfostealerminerpersistenceratspywarestealervmprotect

Malware Config

Extracted

Family

redline

Botnet

paint

C2

193.233.193.0:4633

Attributes
  • auth_value

    70b295da5ec4f38705304ce3bcd32753

Extracted

Family

remcos

Botnet

STU

C2

o0l0j0jo.webredirect.org:20309

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    stu.exe

  • copy_folder

    STU

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    STU

  • mouse_option

    false

  • mutex

    Rmc-0C0O3B

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    STU

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

redline

Botnet

1137502411

C2

193.124.22.27:8362

Targets

    • Target

      ac1906fa0c648d42c3e1b0c7b70b0e7c0c68888d90dc4.exe

    • Size

      112KB

    • MD5

      952abab48bb5bf1cf5f8fc585af985c4

    • SHA1

      bab0ddca75b73a8ccb7f24f4abb1e22d67bec7d4

    • SHA256

      ac1906fa0c648d42c3e1b0c7b70b0e7c0c68888d90dc48c81b225f0932cdb258

    • SHA512

      259b01ce8950e9a4f9c2f24525515e7b61e904090c8d499f40c0430b7af5ca3ef533ed5fa84899c50c0c19087409db47c2e72eb7ac2b6aa98a4eb7b43d56573b

    Score
    10/10
    redlineremcosxmrig1137502411paintstudiscoveryevasionexploitinfostealerminerpersistenceratspywarestealervmprotect

    • Modifies security service

      evasion

    • RedLine

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

      infostealerredline

    • RedLine payload

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • xmrig

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

      minerxmrig

    • XMRig Miner payload

      miner

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Possible privilege escalation attempt

      exploit

    • Stops running service(s)

      evasion

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

      vmprotect

    • Checks computer location settings

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

    • Drops startup file

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • 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

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • 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

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

3
T1112

Impair Defenses

1
T1562

File Permissions Modification

1
T1222

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

2
T1005

Exfiltration

Command and Control

Impact

Service Stop

1
T1489

Tasks