Malicious PDF — malware analysis report

Static analysis result for SHA-256 485777213402db45…

MALICIOUS

PDF

122.4 KB Created: 2020-08-03 11:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fa0ff0ecfaf1ef11f5d2bea3d8971d0 SHA-1: 1078448b3a8ddb4cdebe61d7ea12fd3b6fd034a1 SHA-256: 485777213402db4527014e66c4c7adf59409041b171733422e2a1fff332df4e5
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, identified as a link farm. One critical heuristic indicates a link to a known malicious redirector at 'https://ttraff.com/pify?keyword=the+screen+is+full+of+product+formulas'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the primary lure. The presence of many Shopify-hosted PDF links further supports the link farm characteristic. The file's purpose is likely to redirect users to malicious sites.

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=the+screen+is+full+of+product+formulas
    • http://files.grandbendsoccer.ca/uploads/1/3/1/6/131606984/d0eb950c25ac46.pdf
    • http://files.springhillbaptist.org/uploads/1/3/1/4/131411596/dijovi.pdf
    • http://files.threecookingsisters.com/uploads/1/3/1/8/131871433/0b5f080e.pdf
    • http://files.sarahpalmerart.com/uploads/1/3/1/0/131070035/gelutigetivetaboreb.pdf
    • http://files.wisefeline.com/uploads/1/3/1/3/131380741/wuvoxe.pdf
    • https://cdn.shopify.com/s/files/1/0434/6370/4729/files/revuvedudewegapig.pdf
    • https://cdn.shopify.com/s/files/1/0438/3073/9106/files/fipadufezeso.pdf
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/luvabapuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/kigabefogageliti.pdf
    • https://cdn.shopify.com/s/files/1/0432/6175/5547/files/dumomuzopodi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nawujumukupuzuwoxelojoses.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/eichmann_in_jerusalem_summary.pdf
    • https://cdn.shopify.com/s/files/1/0434/2261/3669/files/dasavug.pdf
    • https://cdn.shopify.com/s/files/1/0430/8605/3527/files/taneropuvafot.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7816/files/kalomaxarigexugalipot.pdf
    • https://cdn.shopify.com/s/files/1/0430/6976/7842/files/84982039651.pdf
    • https://cdn.shopify.com/s/files/1/0431/8789/6480/files/wazifikezusuje.pdf
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/3165498538.pdf
    • https://cdn.shopify.com/s/files/1/0436/8970/5625/files/maruguzuvuwilusalinidovub.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_off00018bfe.bin
18fe33edb78ca0c4e36dcb5c133b2c73ce74215de971cc40ebca849c138fbd41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18BFE 5224 bytes
font_01_sfnt_off00019d8a.bin
9eb05c061496a062ce006dd1719cb39ffb3297d008919bdd3f79a2b7187eed6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19D8A 15272 bytes
font_02_sfnt_off0001cd4e.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1CD4E 4324 bytes

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