Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    11-06-2021 06:51

General

  • Target

    7c43f9321e43eaf3edff6ddc34fe3038.exe

  • Size

    755KB

  • MD5

    7c43f9321e43eaf3edff6ddc34fe3038

  • SHA1

    4a31366cb0ae0f67aaef3cc38c328d4ccc8b3dad

  • SHA256

    f81b0ee364ffb419c8af7bdaf03670bb7fa7dec30aa1d6f486e7a8157768eed2

  • SHA512

    e428ed5f93248f3385e65664bd2a9c2921b137d1c711bc467151ee92607bf82452d996f123984281c9e9db9a4d3bbd1493ea4757401cbc272490f471c1504200

Malware Config

Extracted

Family

redline

Botnet

MIX 11.06

C2

185.215.113.17:18597

Signatures

  • RedLine

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

  • RedLine Payload 2 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c43f9321e43eaf3edff6ddc34fe3038.exe
    "C:\Users\Admin\AppData\Local\Temp\7c43f9321e43eaf3edff6ddc34fe3038.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
      edspolishpp.exe
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:980

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
    MD5

    0cd3b4678051fcdc2a4bd53d86af827b

    SHA1

    e5b7f2fc3b7ffdca417c8306bbb8c05fa70f9c1b

    SHA256

    1d6c10f22e3d97bf8205ab45dbb864a696d07a1c95336043ce6a1cf42b618b8f

    SHA512

    129b59fa4bbd0a69839d196babecf7373456bb04aab737933333cf6b1c632818621cbc6d49c6e1ad4cb5eb3e3b47edcbb4954c5095e31bf0500219202ad0c5b3

  • \Users\Admin\AppData\Roaming\nailedp\edspolishpp.exe
    MD5

    0cd3b4678051fcdc2a4bd53d86af827b

    SHA1

    e5b7f2fc3b7ffdca417c8306bbb8c05fa70f9c1b

    SHA256

    1d6c10f22e3d97bf8205ab45dbb864a696d07a1c95336043ce6a1cf42b618b8f

    SHA512

    129b59fa4bbd0a69839d196babecf7373456bb04aab737933333cf6b1c632818621cbc6d49c6e1ad4cb5eb3e3b47edcbb4954c5095e31bf0500219202ad0c5b3

  • memory/980-65-0x0000000000230000-0x000000000025F000-memory.dmp
    Filesize

    188KB

  • memory/980-63-0x0000000000000000-mapping.dmp
  • memory/980-66-0x0000000000400000-0x000000000046E000-memory.dmp
    Filesize

    440KB

  • memory/980-67-0x0000000000340000-0x000000000035A000-memory.dmp
    Filesize

    104KB

  • memory/980-68-0x00000000005A0000-0x00000000005B9000-memory.dmp
    Filesize

    100KB

  • memory/980-69-0x00000000047E1000-0x00000000047E2000-memory.dmp
    Filesize

    4KB

  • memory/980-71-0x00000000047E3000-0x00000000047E4000-memory.dmp
    Filesize

    4KB

  • memory/980-70-0x00000000047E2000-0x00000000047E3000-memory.dmp
    Filesize

    4KB

  • memory/980-72-0x00000000047E4000-0x00000000047E6000-memory.dmp
    Filesize

    8KB

  • memory/1268-61-0x0000000000400000-0x00000000004D5000-memory.dmp
    Filesize

    852KB

  • memory/1268-60-0x0000000000230000-0x00000000002FE000-memory.dmp
    Filesize

    824KB

  • memory/1268-59-0x0000000075591000-0x0000000075593000-memory.dmp
    Filesize

    8KB