Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ec6f3b406016c8…

MALICIOUS

PDF

45.3 KB Created: 2020-08-17 07:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4770431453069ce38b58142d25fc917b SHA-1: b51fd218b9a01f3813ca7fb71c09bf0f706e33c2 SHA-256: 92ec6f3b406016c8535f34e9c7d63c546ccb285220a6d0f33bf5a1a130b698f2
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=bombsquad+mod+apk+unlimited+all', points to a known malicious redirector. The presence of a link farm suggests an attempt to lure users to malicious websites, likely for phishing or malware distribution. The document body contains garbled text but includes the same suspicious URL.

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=bombsquad+mod+apk+unlimited+all
    • http://files.firstcovenantsuperior.org/uploads/1/3/1/4/131454373/ad311744a3460c7.pdf
    • http://zaboru.merakiandcoffee.com/uploads/1/3/2/6/132682137/kamumolonike.pdf
    • https://cdn.shopify.com/s/files/1/0428/1673/3340/files/45539127176.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6484/files/67712053650.pdf
    • https://cdn.shopify.com/s/files/1/0429/5573/5193/files/jegirek.pdf
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/fewadi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baxumedufimoval.pdf
    • https://cdn.shopify.com/s/files/1/0435/7075/7791/files/24239399913.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/ejercicios_de_angulos_en_posicion_normal.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/incarcerated_mothers.pdf
    • https://cdn.shopify.com/s/files/1/0433/8660/1639/files/pezewipadigego.pdf
    • https://cdn.shopify.com/s/files/1/0431/6561/4234/files/9-_6_geometric_probability_practice_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1999/files/simple_past_tense_exercises_regular_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0435/6240/1947/files/zebagukip.pdf
    • https://cdn.shopify.com/s/files/1/0437/3364/7525/files/zovikaneti.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_off000072c0.bin
dc3ec3ae7c5444bf4f03c07ce3a45b0438927cc3c34cbcd80e0285134909da18
pdf-font-stream PDF embedded font (sfnt) at offset 0x72C0 5388 bytes
font_01_sfnt_off000084f8.bin
4c2b6040b69ff718a435e1b2ea32ef5218031c96280f0bac0ad759a14f05c1b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x84F8 10260 bytes