Analysis

  • max time kernel
    61s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29-01-2021 19:47

General

  • Target

    SKM_C33501911071.exe

  • Size

    1.1MB

  • MD5

    2d92e836e9c59586ac174b2c62b49d5e

  • SHA1

    d61a77b200b9cb467eea926cba58dff98d72c6d4

  • SHA256

    f2731ba50c5293b82a919e930988459e99ee60ce1b0d71cce4862ccb9cf5d279

  • SHA512

    dcf73845e1c30dcefb4001c8dc55b451ac28b5cb2097a15152cac6d124adf1ba830bdb84fed5e01a37b9c7ff0b4ada527f667bca28f7dcbcf9628df832021bc3

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 2 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\SKM_C33501911071.exe
    "C:\Users\Admin\AppData\Local\Temp\SKM_C33501911071.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:644
    • C:\Users\Admin\AppData\Local\Temp\SKM_C33501911071.exe
      "C:\Users\Admin\AppData\Local\Temp\SKM_C33501911071.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2720

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\SKM_C33501911071.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/644-7-0x00000000058C0000-0x00000000058C1000-memory.dmp
    Filesize

    4KB

  • memory/644-12-0x0000000006650000-0x000000000672A000-memory.dmp
    Filesize

    872KB

  • memory/644-6-0x0000000005D20000-0x0000000005D21000-memory.dmp
    Filesize

    4KB

  • memory/644-2-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/644-8-0x0000000005AD0000-0x0000000005AD1000-memory.dmp
    Filesize

    4KB

  • memory/644-9-0x0000000005840000-0x0000000005841000-memory.dmp
    Filesize

    4KB

  • memory/644-5-0x0000000005780000-0x0000000005781000-memory.dmp
    Filesize

    4KB

  • memory/644-11-0x0000000005BD0000-0x0000000005BD3000-memory.dmp
    Filesize

    12KB

  • memory/644-10-0x0000000005AE0000-0x0000000005AE1000-memory.dmp
    Filesize

    4KB

  • memory/644-3-0x0000000000D20000-0x0000000000D21000-memory.dmp
    Filesize

    4KB

  • memory/2720-14-0x00000000004642CE-mapping.dmp
  • memory/2720-13-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/2720-16-0x0000000073F80000-0x000000007466E000-memory.dmp
    Filesize

    6.9MB

  • memory/2720-21-0x0000000004D80000-0x0000000004D81000-memory.dmp
    Filesize

    4KB

  • memory/2720-22-0x0000000006180000-0x0000000006181000-memory.dmp
    Filesize

    4KB