Malicious PDF — malware analysis report

Static analysis result for SHA-256 f17b6c0864b170fb…

MALICIOUS

PDF

38.5 KB Created: 2020-08-04 18:41:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffa35bd116e4cadbe6f54c060cbf9f12 SHA-1: 22fbdc5c68717d8788b4b3c5e632be63b9671928 SHA-256: f17b6c0864b170fb13d0e4fd0fa0c7fd1526958b7fc34a8a6377ead55162fcea
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=business+management+oxford+ib+pdf, which is likely intended to lure the user to a malicious site. The presence of many Shopify links suggests a link farm or SEO poisoning tactic to distribute the malicious payload.

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=business+management+oxford+ib+pdf
    • http://files.lincolncommunityleague.org/uploads/1/3/0/7/130775458/5305928.pdf
    • http://xibakepix.nsanzineza.com/uploads/1/3/1/8/131871674/3414091.pdf
    • http://files.accipitercycles.com/uploads/1/3/1/4/131409526/nukiribupiziba_poripodivitop_jozasusudo.pdf
    • http://files.noramacquarrie.com/uploads/1/3/0/7/130776088/zijewej.pdf
    • http://files.bakedwithhearts.com/uploads/1/3/0/9/130969461/8cd32.pdf
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/93715582524.pdf
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/pakarebamij.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/zuxaxajujulurofo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8099/8302/files/zopad.pdf
    • https://cdn.shopify.com/s/files/1/0440/1748/3934/files/pot_noble_harunaga.pdf
    • https://cdn.shopify.com/s/files/1/0434/0455/8486/files/the_art_of_assembly_language_programming_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/9640/8218/files/pdf_aquaponics_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mevadijuxirefasu.pdf
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/7795592159.pdf
    • https://cdn.shopify.com/s/files/1/0434/2729/9478/files/luvodeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/nalul.pdf
    • https://cdn.shopify.com/s/files/1/0429/8476/7641/files/zedipubufoxat.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/sega_genesis_emulator_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/45189906892.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_off00004b6c.bin
a662cdf8478291d100cea78f8d7bfae1b290fba9b53e48175cabeb3a44db1734
pdf-font-stream PDF embedded font (sfnt) at offset 0x4B6C 5468 bytes
font_01_sfnt_off00005de4.bin
0a86eadaf4ecfe7ac05583f86ecd90b00b05af35f03024006a75751538930d96
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE4 9636 bytes
font_02_sfnt_off00007eb5.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB5 4324 bytes