Analysis

  • max time kernel
    92s
  • max time network
    101s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    09-06-2022 14:12

General

  • Target

    7zS8A52FD1B/62a1ea227dc1c_17ee33ef3.exe

  • Size

    157KB

  • MD5

    13fd49b3e1c7abe59a321d34a983fa1d

  • SHA1

    d68d156faa3dd348d89064c1b5026990b25d9c73

  • SHA256

    9542ce09286e69fe0a1270f0b017639139ece09287496dfe07b7c44ad897c476

  • SHA512

    ddd506fda604e68063268d644963650bc3e0fe987f59c52a08ed2c82ae5dedce1789a378645e8f7f851c74f75b8ee8ed80efb2c0c00ebdb6bfa5933d8ad0f4b6

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7zS8A52FD1B\62a1ea227dc1c_17ee33ef3.exe
    "C:\Users\Admin\AppData\Local\Temp\7zS8A52FD1B\62a1ea227dc1c_17ee33ef3.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1172
    • C:\Users\Admin\AppData\Roaming\458020.exe
      "C:\Users\Admin\AppData\Roaming\458020.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1088

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Command and Control

Web Service

1
T1102

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\458020.exe
    Filesize

    291KB

    MD5

    b68ab152574dd5a027364ced6a734bd0

    SHA1

    a0900371bac1e0774a490d627a03b402a43c793a

    SHA256

    b48493fbfda4896a251b09565dd87c271879a98f8e85b8b25d5f7e9dfb9ca1a0

    SHA512

    4282eb5de1086c903f5de8cf41486770ec746510d18579489b2b8125944cbd8323cb9751d704362dcc74b022ec0589d2962c958ffbd5a9c7d0633551db427086

  • C:\Users\Admin\AppData\Roaming\458020.exe
    Filesize

    291KB

    MD5

    b68ab152574dd5a027364ced6a734bd0

    SHA1

    a0900371bac1e0774a490d627a03b402a43c793a

    SHA256

    b48493fbfda4896a251b09565dd87c271879a98f8e85b8b25d5f7e9dfb9ca1a0

    SHA512

    4282eb5de1086c903f5de8cf41486770ec746510d18579489b2b8125944cbd8323cb9751d704362dcc74b022ec0589d2962c958ffbd5a9c7d0633551db427086

  • \Users\Admin\AppData\Roaming\458020.exe
    Filesize

    291KB

    MD5

    b68ab152574dd5a027364ced6a734bd0

    SHA1

    a0900371bac1e0774a490d627a03b402a43c793a

    SHA256

    b48493fbfda4896a251b09565dd87c271879a98f8e85b8b25d5f7e9dfb9ca1a0

    SHA512

    4282eb5de1086c903f5de8cf41486770ec746510d18579489b2b8125944cbd8323cb9751d704362dcc74b022ec0589d2962c958ffbd5a9c7d0633551db427086

  • \Users\Admin\AppData\Roaming\458020.exe
    Filesize

    291KB

    MD5

    b68ab152574dd5a027364ced6a734bd0

    SHA1

    a0900371bac1e0774a490d627a03b402a43c793a

    SHA256

    b48493fbfda4896a251b09565dd87c271879a98f8e85b8b25d5f7e9dfb9ca1a0

    SHA512

    4282eb5de1086c903f5de8cf41486770ec746510d18579489b2b8125944cbd8323cb9751d704362dcc74b022ec0589d2962c958ffbd5a9c7d0633551db427086

  • memory/1088-59-0x0000000000000000-mapping.dmp
  • memory/1088-62-0x00000000010D0000-0x0000000001122000-memory.dmp
    Filesize

    328KB

  • memory/1088-63-0x0000000000140000-0x0000000000146000-memory.dmp
    Filesize

    24KB

  • memory/1172-54-0x0000000000C20000-0x0000000000C50000-memory.dmp
    Filesize

    192KB

  • memory/1172-55-0x0000000000520000-0x0000000000526000-memory.dmp
    Filesize

    24KB

  • memory/1172-56-0x00000000769D1000-0x00000000769D3000-memory.dmp
    Filesize

    8KB