Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce48f2140887a61…

MALICIOUS

PDF

44.3 KB Created: 2020-08-06 13:00:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 889a8c789513b8cf136a27b81a0a5f49 SHA-1: dd44530ad5910d71f94c03505e86e1ee478f9a8a SHA-256: 3ce48f2140887a61aa368e319b4f4236b1397c51ef6da13c1c7176fa3fda9a12
160 Risk Score

Malware Insights

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

The PDF contains a lure related to financial documents, specifically 'how to read balance sheet of a company pdf'. It embeds multiple links, with one identified as a malicious redirector pointing to 'ttraff.cc'. This suggests an advance-fee scam or phishing attempt, aiming to redirect the user to malicious content. The document body itself is heavily obfuscated and contains the malicious URL.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=how+to+read+balance+sheet+of+a+company+pdf
    • http://files.shopgoldgray.com/uploads/1/3/0/9/130968961/penuperadojoval-poref-viledule-gorekenab.pdf
    • http://matixopub.abbi.ca/uploads/1/3/1/0/131070356/6457948.pdf
    • http://files.phhsbigredbands.org/uploads/1/3/2/7/132740804/vamopif.pdf
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/gejagixite.pdf
    • https://cdn.shopify.com/s/files/1/0441/0041/9736/files/zupaludunudugikujilopuf.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/gidapomudiza.pdf
    • https://cdn.shopify.com/s/files/1/0430/3876/9303/files/pixelmon_ditto_spawn.pdf
    • https://cdn.shopify.com/s/files/1/0430/9254/1589/files/gixozekazotebepegufu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9814/files/ruxijokujusudu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5302/2369/files/a_practical_guide_to_monsters.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1944/files/podebafelajep.pdf
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/mejuxojuzewiwek.pdf
    • https://cdn.shopify.com/s/files/1/0437/6225/3978/files/kerug.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0657/files/wotidemirizozupoxadijag.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_off00006eae.bin
88d83e3bdcd0d57ef790ff6ee2ddf96e1dc402f59d9b74e0383afa83e7279ce9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAE 5688 bytes
font_01_sfnt_off000081ee.bin
2063161d266c024ee7024db7edf8ccd252fdf069c5793687c2aec28ef06ffb17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81EE 10040 bytes

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