Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    23-04-2021 09:26

General

  • Target

    New PO.xls_.exe

  • Size

    823KB

  • MD5

    25ca1917e0bceca252031cd318ca2255

  • SHA1

    b241b8ce758acfd6ff0a3df464caf7f3105d0777

  • SHA256

    5ee0ab3fbf21156b9e04fcc7e3a7a80934d11a34855c826985661fb276de88fb

  • SHA512

    3e9a48a3e927969a2f7f740afee8f37bb188831477d13dd3442b307eff8e90ccf1c3a154c2e1215bd605650c27c358558fad0a2bf6d291a7f17609bd83056309

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.lallyautomobiles.net
  • Port:
    587
  • Username:
    servicekrl@lallyautomobiles.net
  • Password:
    Welcome@2021

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 3 IoCs
  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\New PO.xls_.exe
    "C:\Users\Admin\AppData\Local\Temp\New PO.xls_.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\New PO.xls_.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1472

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

2
T1081

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\New PO.xls_.exe.log
    MD5

    0c2899d7c6746f42d5bbe088c777f94c

    SHA1

    622f66c5f7a3c91b28a9f43ce7c6cabadbf514f1

    SHA256

    5b0b99740cadaeff7b9891136644b396941547e20cc7eea646560d0dad5a5458

    SHA512

    ab7a3409ed4b6ca00358330a3aa4ef6de7d81eb21a5e24bb629ef6a7c7c4e2a70ca3accfbc989ed6e495fdb8eb6203a26d6f2a37b2a5809af4276af375b49078

  • memory/644-121-0x0000000007DF0000-0x0000000007DFE000-memory.dmp
    Filesize

    56KB

  • memory/644-117-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/644-118-0x0000000004950000-0x0000000004E4E000-memory.dmp
    Filesize

    5.0MB

  • memory/644-119-0x00000000049F0000-0x00000000049F1000-memory.dmp
    Filesize

    4KB

  • memory/644-120-0x0000000007E90000-0x0000000007E91000-memory.dmp
    Filesize

    4KB

  • memory/644-114-0x0000000000020000-0x0000000000021000-memory.dmp
    Filesize

    4KB

  • memory/644-122-0x00000000080D0000-0x000000000816A000-memory.dmp
    Filesize

    616KB

  • memory/644-123-0x000000000A840000-0x000000000A8CB000-memory.dmp
    Filesize

    556KB

  • memory/644-116-0x0000000004E50000-0x0000000004E51000-memory.dmp
    Filesize

    4KB

  • memory/1472-124-0x0000000000400000-0x0000000000466000-memory.dmp
    Filesize

    408KB

  • memory/1472-125-0x0000000000461CAE-mapping.dmp
  • memory/1472-131-0x0000000005A50000-0x0000000005F4E000-memory.dmp
    Filesize

    5.0MB

  • memory/1472-132-0x0000000006C60000-0x0000000006C61000-memory.dmp
    Filesize

    4KB