Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecde9361483a4a47…

MALICIOUS

PDF

44.4 KB Created: 2020-08-16 19:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a617b8b224876a548b6780df85940aa SHA-1: 42637551486b2a598cebbcc33a04d77be9118b35 SHA-256: ecde9361483a4a47bf0d278d4d16fa07e41a621bebaa2b240a8201d7e769bf7c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=streaming+video+recorder+for+android'. This URL is likely part of a phishing or scam campaign designed to trick users into downloading malicious content. The document body, though heavily obfuscated, also contains this URL, reinforcing the lure. The presence of a large number of external PDF links suggests an attempt to manipulate search engine results or distribute further 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.com/pify?keyword=streaming+video+recorder+for+android
    • http://files.glaquaponics.com/uploads/1/3/1/1/131164075/mosevelobiwub_xuwobadalo.pdf
    • http://naroz.healthydancercanada.org/uploads/1/3/0/8/130873951/59f2f6.pdf
    • http://files.aaichstudio.com/uploads/1/3/2/6/132696117/tujero_mumozumaxejapid_wakiwosek_xubifipotud.pdf
    • https://cdn.shopify.com/s/files/1/0434/6652/2790/files/pexenuderobozibu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/89637935028.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/christmas_organ_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/9220/5978/files/66365739685.pdf
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/necron_6th_edition_codex.pdf
    • https://cdn.shopify.com/s/files/1/0432/9170/5500/files/the_ak_47_kalashnikov_series_assault_rifles.pdf
    • https://cdn.shopify.com/s/files/1/0437/3381/1351/files/books_every_high_school_student_should_read_before_college.pdf
    • https://cdn.shopify.com/s/files/1/0437/7447/6440/files/radakezarawiretova.pdf
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/4650446589.pdf
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/17790545559.pdf
    • https://cdn.shopify.com/s/files/1/0434/4630/4933/files/47070083457.pdf
    • https://cdn.shopify.com/s/files/1/0432/8115/4204/files/tuvos.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_off00007025.bin
3aa72bd072a2685ea3db821f6e4187e770b2b51ba90254416f0c0d91e872e374		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7025 5296 bytes
font_01_sfnt_off0000820b.bin
1979bb2379348d0d1beef32097856788c3283262f13f6aeda8a15066a03a44ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x820B 10032 bytes

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