Malicious PDF — malware analysis report

Static analysis result for SHA-256 abd912b879bfe5ef…

MALICIOUS

PDF

37.9 KB Created: 2021-05-21 02:11:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: b40ab5a7efe8e6681f578e9d2c11b56d SHA-1: 07137ac5ad0078573e4c1eb7b2976f4c420221e0 SHA-256: abd912b879bfe5ef42e125a378aac7f2e430e2f90448a09c66936f9b1387b10c
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and IP addresses, disguised as 'free generator' or 'game hack' lures. The document body explicitly contains phrases like 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' and embedded URLs, indicating a clear intent to direct users to potentially harmful content. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a malicious workflow aimed at user redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-bedrock-for-free-game-hack In PDF document text
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-youthnow_GM406889139.pdfPDF link annotation
    • http://118.174.0.244/UserFiles/File/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://118.174.0.244/UserFiles/File/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000335e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x335E 23664 bytes
SHA-256: 573d636601f4974d50b8dcd14a77e86e268a670b05851d583c25c093ca198c10
font_01_sfnt_off000068e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E6 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7297 18268 bytes
SHA-256: 421dc37018d5e6f1467ffbccbacebf5894202cb157ac672e86022266516fa266