Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcdb95835c7ccd93…

MALICIOUS

PDF

44.9 KB Created: 2020-08-14 20:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a254761cb8b885812325f6e40edcd6a SHA-1: f05699ed11786cf5db4445d44e47365ca793face SHA-256: bcdb95835c7ccd93046571dcde090a9879e6be8db6fa19c2a45dbb3744f54350
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for a 'Hades star mod apk' and includes a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the malicious URL and several other PDF links, some of which are hosted on benign platforms but others are unknown. The primary malicious URL, https://ttraff.cc/pify?keyword=hades+star+mod+apk, is used to redirect the user to potentially harmful content. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ttraff.cc/pify?keyword=hades+star+mod+apk
    • http://files.matthewshirrell.com/uploads/1/3/1/1/131164460/3139280.pdf
    • http://sonimiw.visitsolonsprings.com/uploads/1/3/1/4/131452903/5b95211f544.pdf
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/the_beatles_all_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/86640666228.pdf
    • https://cdn.shopify.com/s/files/1/0429/7300/3939/files/mcdonalds_training_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/2520/2332/files/cc_road_construction_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0437/1139/8039/files/cuchillo_artesanal_fabricacion_paso_a_paso.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdf
    • https://cdn.shopify.com/s/files/1/0438/5911/6182/files/balaclava_pattern.pdf
    • https://cdn.shopify.com/s/files/1/0437/9118/8117/files/classification_data_mining.pdf
    • https://cdn.shopify.com/s/files/1/0432/6529/4504/files/ansiedade_autocontrole_augusto_cury.pdf
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/100_adjetivos_en_ingles_y_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0434/7356/7901/files/vonidadok.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e8b.bin
ea7283e7be5cd09389478537e01c5c45dcacfd74297fc9a55bcb633cebade50f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8B 5096 bytes
font_01_sfnt_off00006fc6.bin
753bb99fbc91b4b00872fcd65a9084238a377c77605ccbc293b797fbb0563847
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC6 9864 bytes
font_02_sfnt_off000091c3.bin
9ffc405fbed68b1ed35cf25504b2a045b5802e2074cf99e6920a228075e829fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x91C3 16160 bytes