Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4b6db07a2c13a9…

MALICIOUS

PDF

43.6 KB Created: 2020-08-07 00:08:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e2af54e777f29ddf1897d5ddc44850e SHA-1: 75716d9c680f41480d7977be93051ffbad9853f3 SHA-256: 7e4b6db07a2c13a95bfe4b830df24843a4c6d4450ebe717e3c5a9f1407141ee7
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially obfuscated, includes the same URL, suggesting a lure to a malicious site. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt.

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=treatment+for+antisocial+personality+disorder+pdf
    • http://kiwumud.towingstamford.com/uploads/1/3/1/4/131406717/zofat.pdf
    • http://files.nuttybeepdx.com/uploads/1/3/1/4/131454316/199e57132f35965.pdf
    • http://files.bethelinhabarana.com/uploads/1/3/0/8/130814085/7826133.pdf
    • http://feten.liladala.com/uploads/1/3/1/4/131407406/1629863.pdf
    • http://files.waterboromarket.com/uploads/1/3/1/0/131070146/4b8692.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jokopewizemaw.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/badesipazonupif.pdf
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/fefalipikufexuvi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3096/0549/files/d_d_short_rest.pdf
    • https://cdn.shopify.com/s/files/1/0433/5989/5717/files/gububisobisuturirujesum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9966/9151/files/66741219968.pdf
    • https://cdn.shopify.com/s/files/1/0434/9224/5666/files/javascript_compare_two_objects.pdf
    • https://cdn.shopify.com/s/files/1/0428/9321/3855/files/foxosatuwonanazilu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/contrarian_investment_strategies_david_dreman.pdf
    • https://cdn.shopify.com/s/files/1/0447/9143/1325/files/igualdad_justicia_y_equidad.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/1130972197.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdf
    • https://cdn.shopify.com/s/files/1/0438/5947/6630/files/jaburubesopipupowovabo.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_off00006c21.bin
c4c15782a177b97f9a8d71acb715df3a677eb9bf0560857398c9ae62c10ce0da
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C21 5352 bytes
font_01_sfnt_off00007e49.bin
7d306244764089625bacc0abada76a15b1d0e663657f2999fd68e8f402a097f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E49 10192 bytes