Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc4199fa18c75cc5…

MALICIOUS

PDF

43.9 KB Created: 2020-08-17 18:26:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44ae3aadb7ac2d939b5a8e75929fd91a SHA-1: 5fa7c98c5a91d68a6a3787bfbfecad3ddb2a7f35 SHA-256: bc4199fa18c75cc540b440853a13f69929b01a87f3054d5690762ec5e05c93da
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=streamlabs+obs++64+bit+windows+10'. This URL is likely part of a social engineering attempt to trick users into downloading software. The document also contains a large number of embedded links, many hosted on Shopify, which is characteristic of SEO link farm abuse for traffic redirection or malware distribution.

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.ru/pify?keyword=streamlabs+obs++64+bit+windows+10
    • http://files.edmontonlotmaint.ca/uploads/1/3/1/8/131856374/tesifenudexobud.pdf
    • http://files.expertcharlottelocksmith.com/uploads/1/3/1/0/131071114/pelesutaw_pizizifumafora.pdf
    • http://files.jasonkapcala.com/uploads/1/3/2/6/132682627/8851328.pdf
    • http://files.belfastdrivered.com/uploads/1/3/1/3/131382274/wexamotovonezit-pabelirenakexo-robuniwobunoru.pdf
    • http://files.abigailrosestudios.com/uploads/1/3/1/8/131857419/polupib-vovutotiza-relukijir.pdf
    • https://cdn.shopify.com/s/files/1/0428/9380/3679/files/fantasia_models_aiy.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/the_leadership_experience_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0438/5194/0000/files/gulimoxobivotijed.pdf
    • https://cdn.shopify.com/s/files/1/0445/8083/1396/files/antimanic_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0434/2228/5976/files/introduction_to_cost_accounting_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fapodepemiretewuroraga.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/71160960682.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7250/files/socialismo_vs_capitalismo.pdf
    • https://cdn.shopify.com/s/files/1/0437/2742/1608/files/zarogalusem.pdf
    • https://cdn.shopify.com/s/files/1/0429/6930/1151/files/97592563716.pdf
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/cause_and_effect_worksheet_grade_7.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0487/files/nonequilibrium_hypersonic_aerothermodynamics_chul_park.pdf
    • https://cdn.shopify.com/s/files/1/0440/2007/2613/files/apprendre_le_franais_niveau_dbutant.pdf
    • https://cdn.shopify.com/s/files/1/0435/9333/4952/files/akreditasi_puskesmas_bab_3.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_off00006ac4.bin
12333d0ea8d0b1e171c7bcf77c867d9c242528bb82cf12e5cf31b7a5ccdde55a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC4 5744 bytes
font_01_sfnt_off00007e48.bin
75382989aed6ae4648af5befafa03dbbfbc9916d9eaeb8e2cfdfc5ff856c7236
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E48 10564 bytes