Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1e40b5b31516653…

MALICIOUS

PDF

44.8 KB Created: 2020-08-11 02:11:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 617a4938055bbe3ceef5740ff8d891f1 SHA-1: fd6dfc8395b78499b089785b37678ff903182b3e SHA-256: a1e40b5b31516653593495056f49fa53b162f025ad708c13eaf5f9093fe0114e
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=centrales+termicas+en+el+peru+pdf'. This indicates the document's purpose is to redirect users to potentially harmful content. The document body itself is heavily obfuscated but contains references to the redirector URL and numerous other PDF links hosted on Shopify, suggesting a SEO-based lure tactic.

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=centrales+termicas+en+el+peru+pdf
    • http://files.mymobilervservice.com/uploads/1/3/0/8/130874582/sopeva.pdf
    • http://zizasimet.kauaimusiceducation.org/uploads/1/3/0/7/130740596/boweraf.pdf
    • http://xawinej.rayzinkanefarm.com/uploads/1/3/1/3/131384401/jojenedafa.pdf
    • http://files.outonalimbboutique.com/uploads/1/3/2/3/132303351/lujokaser.pdf
    • http://files.vulturepeakmines.com/uploads/1/3/1/3/131398194/famipusesiterag.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86372263330.pdf
    • https://cdn.shopify.com/s/files/1/0441/0825/1288/files/52636564637.pdf
    • https://cdn.shopify.com/s/files/1/0434/1340/5850/files/17462219406.pdf
    • https://cdn.shopify.com/s/files/1/0431/2363/8426/files/32189351877.pdf
    • https://cdn.shopify.com/s/files/1/0439/2363/6379/files/studio_apartment_floor_plans.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6220/files/can_am_defender_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/79920994062.pdf
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/15267428696.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/89798414248.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4745/files/murisetobejufitug.pdf
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/61461353757.pdf
    • https://cdn.shopify.com/s/files/1/0434/4388/0093/files/cabalistic_encyclopedia_david_godwin.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_off00006247.bin
a27ff21c717d813bd025e3840c59a89f99eef7ec4f9892e9b53b586fbc48cd8b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6247 5096 bytes
font_01_sfnt_off0000737b.bin
e1f7eaed749bb10dc147b99df48736c5c72a9a94f7be9fdf264b006c558165fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x737B 10764 bytes
font_02_sfnt_off00009696.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9696 4324 bytes