Malicious PDF — malware analysis report

Static analysis result for SHA-256 2325710faa38786d…

MALICIOUS

PDF

44.1 KB Created: 2020-08-18 21:49:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 875c81c189b014842f1d6d6eb10a6013 SHA-1: 1e34d5460915a0b0d5d355e663d155ddb25cff33 SHA-256: 2325710faa38786d1d476372e9069ff053d9418963d35cdaa4f7622f1d1fdb6d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary link pointing to a redirector service. This suggests a phishing or malicious content delivery attempt, where the redirector is used to obscure the final destination. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning technique to distribute 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=informal+report+sample+pdf
    • http://files.imageartscolumbus.com/uploads/1/3/2/3/132302735/8196819.pdf
    • http://files.deltonfaithchurch.com/uploads/1/3/1/4/131408024/pamutuw.pdf
    • http://files.mcesmonroe.com/uploads/1/3/1/8/131857315/3475975.pdf
    • https://cdn.shopify.com/s/files/1/0431/1308/7142/files/79866573905.pdf
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/15265656720.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/27315469017.pdf
    • https://cdn.shopify.com/s/files/1/0437/2204/7637/files/berilio_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/69988506189.pdf
    • https://cdn.shopify.com/s/files/1/0439/2153/9240/files/portuguese_to_english_phrases.pdf
    • https://cdn.shopify.com/s/files/1/0441/3584/1944/files/xaxoparutopumuwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/8454/6209/files/miracle_shake_for_ed.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/funny_answers_to_are_you_alive.pdf
    • https://cdn.shopify.com/s/files/1/0450/3266/9334/files/understanding_how_to_fight_the_good_fight_of_faith.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7350/files/45667430332.pdf
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/niluvujasosonolobaso.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_off00007174.bin
8de43b1fa4f6839d1084fc6953ee9004982b9c4b4022de764926ec5735cec16e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7174 5124 bytes
font_01_sfnt_off000082bb.bin
dbafc7484f6a491a1c70829fae525c77378ef771c3f5bde241dc65994b46015f
pdf-font-stream PDF embedded font (sfnt) at offset 0x82BB 9748 bytes