Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa5499a5ea545c82…

MALICIOUS

PDF

58.9 KB Created: 2020-08-12 11:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75e3c0255012c2161b4a059fbd7bbf36 SHA-1: 12927e437a74b69dc02774202cda81c5a46c7f15 SHA-256: aa5499a5ea545c82eabb8e27fdc48a213da89e9f0058bda00b6340dfd889d9ed
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.cc/pify?keyword=bikini+body+mommy+nutrition+guide+pdf, which likely serves as a lure for further malicious activity. The document body, though heavily obfuscated, contains references to the lure and embedded URLs, reinforcing the social engineering aspect of the attack.

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=bikini+body+mommy+nutrition+guide+pdf
    • http://files.braemarmensclub.com/uploads/1/3/1/8/131872286/pekeputafobo_gifuna_tulime_fukudafapul.pdf
    • http://gutizo.bigdoginstallations.com/uploads/1/3/1/8/131871921/jipavisaliruk.pdf
    • http://files.mimimanners.net/uploads/1/3/1/1/131163516/nebuzoju-zuwunolule-labez.pdf
    • http://sizada.amerifencellc.com/uploads/1/3/2/7/132741099/4bb84996858d0.pdf
    • http://files.theatelierllc.com/uploads/1/3/1/3/131382590/b90f573.pdf
    • https://cdn.shopify.com/s/files/1/0429/1425/0905/files/82016006673.pdf
    • https://cdn.shopify.com/s/files/1/0428/1879/7724/files/33768714048.pdf
    • https://cdn.shopify.com/s/files/1/0429/3017/6159/files/papelirosamolaxadiwimatef.pdf
    • https://cdn.shopify.com/s/files/1/0448/1371/3570/files/asidosis_respiratorik.pdf
    • https://cdn.shopify.com/s/files/1/0455/5584/3237/files/historia_natural_de_la_enfermedad_diabetes_mellitus_tipo_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/0607/4780/files/gobaviwezozitiduvapak.pdf
    • https://cdn.shopify.com/s/files/1/0432/6601/5395/files/larerodifolejadodamiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32829552166.pdf
    • https://cdn.shopify.com/s/files/1/0437/9901/9682/files/10061781944.pdf
    • https://cdn.shopify.com/s/files/1/0439/2153/9240/files/mefurenaseripabogetazumi.pdf
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/6378229661.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061c1.bin
048fb1891f432488516cd811e7b04d68e7d39e548ca3495625137f8fb0c23ff4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C1 6744 bytes
font_01_sfnt_off000072a6.bin
081eedb70ca78272dfb54a6d7b0603293e50e47f5cbd0cf9f50b6ae82713138c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A6 5296 bytes
font_02_sfnt_off00008493.bin
5eca012d53c7b8473c47572c7dd653f1225a1ee083fa979adaf072873752dede		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8493 12208 bytes
font_03_sfnt_off0000a128.bin
70278999ef528b996f9ffdc48b8a65164f2e7a040c7f49d28f00372ecfe201c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA128 11012 bytes
font_04_sfnt_off0000c6af.bin
64f21e55c2f29c6f605e8f9fd96e7f7b34f9b4a26fdc717ddead948457370e3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC6AF 16148 bytes

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