Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c69025440fbc5f2…

MALICIOUS

PDF

40.9 KB Created: 2020-08-02 11:51:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98957fa578b5e1fbab099bd418152ebf SHA-1: 00ac602c7628069b6f97fcdf6f9a96ab2e32277b SHA-256: 2c69025440fbc5f256fe73de1e4f1ff03f9ebdbc65591ff45844238b1618857a
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects through ttraff.cc. This redirector is known to lead to malicious sites. The document body, though heavily obfuscated, contains the string 'John deere 110 manual' and the malicious URL, suggesting a lure to disguise the malicious intent. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=john+deere+110+manual
    • http://files.ryankeyesministries.org/uploads/1/3/1/1/131164488/vowifi-kevomi-sopopava-diwob.pdf
    • http://files.pharmaciecocagne.ca/uploads/1/3/1/4/131406800/631e17c148940.pdf
    • http://files.emittedenergy.com/uploads/1/3/0/7/130776343/89c1f5b90d.pdf
    • http://files.yoonoptometry.com/uploads/1/3/1/4/131406453/369a1387f346.pdf
    • http://files.ironforknutrition.com/uploads/1/3/2/7/132740464/1e3d98d1ddf.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/google_basketball_2012.pdf
    • https://cdn.shopify.com/s/files/1/0440/4730/2806/files/20590744001.pdf
    • https://cdn.shopify.com/s/files/1/0428/8564/4454/files/goruwogufet.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/ziworipuxu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/42617717559.pdf
    • https://cdn.shopify.com/s/files/1/0431/6908/7642/files/gowewev.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/vakiweje.pdf
    • https://cdn.shopify.com/s/files/1/0430/2172/9955/files/65512057431.pdf
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/how_to_thread_a_packing_tape_dispenser.pdf
    • https://cdn.shopify.com/s/files/1/0429/9833/3599/files/atlas_v14_crack.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nanejixiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/3607/2341/files/28113900569.pdf
    • https://cdn.shopify.com/s/files/1/0430/0747/5875/files/figasanipeva.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_off000062a9.bin
c2ce18f943350e3000d1b05254a852d4c3ed92dbdb3c8fc3045bee17dd94eb7e
pdf-font-stream PDF embedded font (sfnt) at offset 0x62A9 5072 bytes
font_01_sfnt_off000073b7.bin
8669236b238de2bdc42cc48efea79d9f642b02bf949f0484ff5393a7bf28de22
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B7 10180 bytes