Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d16f528660f100d…

MALICIOUS

PDF

42.8 KB Created: 2020-08-22 18:02:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6940045cdb0a3d9c6a9a440ad8202bd7 SHA-1: 13ca3674dd7bceb96896bc58af82b6b2102056ec SHA-256: 9d16f528660f100d91a0246a23b95c82ae01ba2fff85d7178c1747191bf856f6
120 Risk Score

Malware Insights

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

The PDF contains a deceptive lure, presenting a 'listening test' with answers to trick the user into clicking a link. This link redirects to `https://ttraff.cc/pify?keyword=listening+test+1+dreamtime+travel+agency+answers`, which is identified as a malicious redirector. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to benign Shopify domains but also include potentially malicious ones. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=listening+test+1+dreamtime+travel+agency+answers
    • http://guxodoje.wyatthersey.com/uploads/1/3/0/7/130776208/4165522.pdf
    • http://files.onthisplanetearth.com/uploads/1/3/2/3/132303209/089eea44695f4.pdf
    • http://files.bodmersjourney.com/uploads/1/3/1/4/131454317/1104421.pdf
    • http://practicepteonline.com/wp-content/uploads/2020/06/161_we.mp3
    • https://cdn.shopify.com/s/files/1/0434/6901/3158/files/calendario_serie_a_2020_19_orari.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/libros_sobre_alimentacion_saludable.pdf
    • https://cdn.shopify.com/s/files/1/0433/2965/0843/files/segowesilevejefetubivomu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9052/3813/files/xemoxorolawa.pdf
    • https://cdn.shopify.com/s/files/1/0435/6043/5871/files/komamejag.pdf
    • https://cdn.shopify.com/s/files/1/0428/0867/2423/files/28786418023.pdf
    • https://cdn.shopify.com/s/files/1/0434/7854/8630/files/zeziv.pdf
    • https://cdn.shopify.com/s/files/1/0451/3808/3994/files/after_2_indir_yandex.pdf
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/waravagebejewadima.pdf
    • https://cdn.shopify.com/s/files/1/0429/0409/2828/files/sexefifobatalubulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/zutibagabanaf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0862/1719/files/facebook_status_love_video_song.pdf
    • https://cdn.shopify.com/s/files/1/0441/0572/8152/files/cricket_players_information_in_marathi_language.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000662d.bin
98dd3f3b612f8f9a9b2fd5933eb8d3780dcb2a5e3bc27a231620d63c79dc688a
pdf-font-stream PDF embedded font (sfnt) at offset 0x662D 5508 bytes
font_01_sfnt_off000078e8.bin
1196573bb3347a816a9bbf5018bc3edd92b4f4354421618b55c418082bbb7321
pdf-font-stream PDF embedded font (sfnt) at offset 0x78E8 10956 bytes