Malicious PDF — malware analysis report

Static analysis result for SHA-256 d76a8311001b7755…

MALICIOUS

PDF

43.8 KB Created: 2020-08-01 17:12:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f41d4d1804e4afc5407ef9fa47f2ecaa SHA-1: c0dc1e25ef44ed484307220cda2dd22ca1e4e7cc SHA-256: d76a8311001b7755c45f448ed53a966ff6ade4d560f341c7c9d6fd9cec3bc520
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains but are likely part of a link farm to improve SEO for malicious content. One critical heuristic identified a direct link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the malicious URL and a plausible lure related to a Minecraft seed, suggesting a social engineering tactic to drive traffic to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=real+fingerprint+lock+screen
    • http://files.zacjolliffe.com/uploads/1/3/0/9/130969036/8582619.pdf
    • http://files.sarahulan.com/uploads/1/3/0/7/130739758/mezuxapudeviketum.pdf
    • http://files.momspantrykitchen.com/uploads/1/3/0/8/130814129/kajutelibe_maturav_wefiraf_vagapidapo.pdf
    • http://files.bluecreekcanine.com/uploads/1/3/1/0/131070284/zepanuk-wotajoloxozap.pdf
    • https://cdn.shopify.com/s/files/1/0437/6936/4629/files/pewdiepies_minecraft_seed.pdf
    • https://cdn.shopify.com/s/files/1/0441/0490/8952/files/john_deere_318_engine.pdf
    • https://cdn.shopify.com/s/files/1/0432/7948/3048/files/34947421038.pdf
    • https://cdn.shopify.com/s/files/1/0431/2386/7805/files/kesafoderuwuzufapomup.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/febizazerexoma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdf
    • https://cdn.shopify.com/s/files/1/0428/6545/9366/files/64271975893.pdf
    • https://cdn.shopify.com/s/files/1/0428/2574/4540/files/befabisog.pdf
    • https://cdn.shopify.com/s/files/1/0440/1859/8038/files/dekajodifasejiroximin.pdf
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/bofasitejonuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/xakekalisunenoka.pdf
    • https://cdn.shopify.com/s/files/1/0434/0056/0805/files/logive.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_off00006f0b.bin
1b0c44ead324bcd94a5c39fe57a26c31ac868b9835afb2e775cababbfd473c32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0B 5252 bytes
font_01_sfnt_off00008108.bin
64295aac5c5535bdfda8f7eee27391c12ff4a55b9b4c82d7bef8882c7b4b32ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8108 9780 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.