Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a4d78f3a9052cc5…

MALICIOUS

PDF

41.6 KB Created: 2020-08-24 01:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a29b763d0cc7203dc0bd8eeecccedf16 SHA-1: 07d090ef80b98920393a37cacf56e8d0731935f4 SHA-256: 2a4d78f3a9052cc5d114cf989c285a4a6d6dbcc328d7c9e998833cf2e42f603c
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm. One of these links, 'https://ttraff.com/pify?keyword=beavers+uniform+badges+uk', is identified as a malicious redirector. This suggests the document's primary purpose is to lure users into clicking these links, potentially leading to phishing sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=beavers+uniform+badges+uk
    • http://files.stpaulhubbardlake.org/uploads/1/3/0/8/130873783/a45f6599.pdf
    • http://files.michaelsautodetailing.com/uploads/1/3/0/8/130874615/96c8fda3b60.pdf
    • http://roxis.maryparmer.com/uploads/1/3/1/4/131407511/3940892.pdf
    • http://tazoluvun.memassweets.com/uploads/1/3/0/8/130813528/1748634.pdf
    • https://cdn.shopify.com/s/files/1/0428/6211/7030/files/22382174799.pdf
    • https://cdn.shopify.com/s/files/1/0431/5991/2610/files/sensors_and_actuators_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8999/3621/files/savapoxulatuwokepagu.pdf
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/video_recorder_free_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0433/5478/3893/files/bronconeumonia_pediatrica.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3585/files/pevafutelunokamiw.pdf
    • https://cdn.shopify.com/s/files/1/0430/0541/1481/files/gixatisefuwiponakozub.pdf
    • https://cdn.shopify.com/s/files/1/0428/1755/2543/files/bematulisuwedori.pdf
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/duchess_of_malfi_critical_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0428/2109/1484/files/zuzewatiwefidadizatij.pdf
    • https://cdn.shopify.com/s/files/1/0434/8706/8322/files/31302511838.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_off00005617.bin
de761b0f83d230993f9b087a0f8c92bfef4de5fdc657b13f5993195ff7ae0d88
pdf-font-stream PDF embedded font (sfnt) at offset 0x5617 5312 bytes
font_01_sfnt_off00006811.bin
9a27c90e6892479fa8a08aee887924312d81ba369c67a2e7489cbc45aac9747c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6811 10380 bytes
font_02_sfnt_off00008b82.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B82 4324 bytes