Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb016464df7f1c9b…

MALICIOUS

PDF

43.5 KB Created: 2020-08-26 04:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 884a212069c61c02e9eb324c80647b52 SHA-1: f611d7c64659d86b2a25720e34ae7c3f278e63ee SHA-256: bb016464df7f1c9b8f6e413ad12b6bec051a9a439295a5e5543ddaf92edb0484
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=download+acrobat+reader+9+pro+extended+free', is designed to trick users into downloading malicious software by impersonating a legitimate software download. The PDF also contains a large number of external links, many hosted on cdn.shopify.com, which is indicative of a link farm used for SEO poisoning or distributing malicious content.

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=download+acrobat+reader+9+pro+extended+free
    • http://files.onehealthepigenomics.com/uploads/1/3/1/4/131453124/9169272.pdf
    • http://files.groundswellballito.com/uploads/1/3/1/8/131855995/xetasenoforafib.pdf
    • http://files.fvillebc.org/uploads/1/3/1/4/131483153/340eb0ce26.pdf
    • https://cdn.shopify.com/s/files/1/0462/9174/6976/files/sativedapag.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/50525282085.pdf
    • https://cdn.shopify.com/s/files/1/0432/8508/6364/files/kindergarten_worksheets_missing_letters.pdf
    • https://cdn.shopify.com/s/files/1/0430/2775/9257/files/98379833824.pdf
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/67765795942.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/27158767905.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3050/files/69567416782.pdf
    • https://cdn.shopify.com/s/files/1/0431/5083/5878/files/vuwebosanudirasepofogufu.pdf
    • https://cdn.shopify.com/s/files/1/0438/4984/2850/files/gifofutaxesomikavisuwi.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/julixonujezezoromasokuj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3403/3824/files/duzesagax.pdf
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/robevigemopakid.pdf
    • https://cdn.shopify.com/s/files/1/0432/2299/1007/files/digilisaloxunoruwef.pdf
    • https://cdn.shopify.com/s/files/1/0432/6585/1542/files/18092129412.pdf
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/47840392763.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_off00006b3b.bin
2f9e11bad30c170b329c5112c43b004b6753dff0e42b49f626655923e01c4b67
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B3B 5424 bytes
font_01_sfnt_off00007dd7.bin
36054daa7b01ecbcc90769cf6d28a98e995a188e606ef10b03ab2d70b6151b21
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DD7 10268 bytes