Analysis

  • max time kernel
    62s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    22-06-2021 11:28

General

  • Target

    PO031656.exe

  • Size

    893KB

  • MD5

    49107ecd2118e55b971088b19d1f05b2

  • SHA1

    7978c25b86b47dba57daefe69f897338ed0d3694

  • SHA256

    e89683ea60a246d6fc1744cafaacc17872fe348a3d655793d6513a1271151e60

  • SHA512

    557aa31b3a37455005ade68b9cb000e3fcb75cbc369025be12475a40b4b7161e203ab21dcea3f9955ae3efae56d13f4caace24eaf4946dbc0ffec3c00975a85c

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    nicolas.sautter@chsauter-bc.com
  • Password:
    111aaa

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger Payload 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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\PO031656.exe
    "C:\Users\Admin\AppData\Local\Temp\PO031656.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Users\Admin\AppData\Local\Temp\PO031656.exe
      "C:\Users\Admin\AppData\Local\Temp\PO031656.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3700

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO031656.exe.log
    MD5

    90acfd72f14a512712b1a7380c0faf60

    SHA1

    40ba4accb8faa75887e84fb8e38d598dc8cf0f12

    SHA256

    20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

    SHA512

    29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

  • memory/3700-125-0x0000000000400000-0x000000000046A000-memory.dmp
    Filesize

    424KB

  • memory/3700-133-0x0000000006300000-0x0000000006301000-memory.dmp
    Filesize

    4KB

  • memory/3700-132-0x0000000004FA0000-0x000000000549E000-memory.dmp
    Filesize

    5.0MB

  • memory/3700-126-0x000000000046457E-mapping.dmp
  • memory/3904-121-0x00000000056B0000-0x0000000005BAE000-memory.dmp
    Filesize

    5.0MB

  • memory/3904-114-0x0000000000C90000-0x0000000000C91000-memory.dmp
    Filesize

    4KB

  • memory/3904-122-0x00000000059F0000-0x0000000005A00000-memory.dmp
    Filesize

    64KB

  • memory/3904-123-0x0000000007360000-0x00000000073CD000-memory.dmp
    Filesize

    436KB

  • memory/3904-124-0x0000000005010000-0x0000000005083000-memory.dmp
    Filesize

    460KB

  • memory/3904-120-0x0000000005870000-0x0000000005871000-memory.dmp
    Filesize

    4KB

  • memory/3904-119-0x0000000005580000-0x0000000005581000-memory.dmp
    Filesize

    4KB

  • memory/3904-118-0x00000000056B0000-0x00000000056B1000-memory.dmp
    Filesize

    4KB

  • memory/3904-117-0x0000000005BB0000-0x0000000005BB1000-memory.dmp
    Filesize

    4KB

  • memory/3904-116-0x0000000005610000-0x0000000005611000-memory.dmp
    Filesize

    4KB