Malicious PDF — malware analysis report

Static analysis result for SHA-256 deebcf8fd3071c9a…

MALICIOUS

PDF

60.4 KB Created: 2020-09-10 14:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d4bfde0264257ed23618f9eff135311 SHA-1: 0234afd308e94d6e6e5e8f5524c18a6669112630 SHA-256: deebcf8fd3071c9a9326912975fbaf551b0f026a2f7f502ec29d16b7975d9100
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.me', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm for SEO manipulation or distribution. The presence of a visual download button further supports the lure to click the malicious link. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or redirection attack.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/pify?keyword=busybox+apk+android+4.+1.+2
    • http://files.thefrostedsugarcookie.com/uploads/1/3/1/3/131398224/79e4469.pdf
    • http://boneso.stfrancesbasketball.com/uploads/1/3/1/4/131453741/f71994dc8.pdf
    • http://files.monheganschool.org/uploads/1/3/1/4/131482826/6121026.pdf
    • http://files.audreylewisinteriors.com.au/uploads/1/3/2/3/132303181/fokubopisasokiju.pdf
    • http://files.alanvanim.com/uploads/1/3/1/4/131437689/3a47951.pdf
    • https://cdn.shopify.com/s/files/1/0439/3785/7691/files/auditoria_de_capital_contable.pdf
    • https://cdn.shopify.com/s/files/1/0432/9917/6612/files/45100168154.pdf
    • https://cdn.shopify.com/s/files/1/0433/7254/4150/files/bully_game_free_for_windows.pdf
    • https://cdn.shopify.com/s/files/1/0437/5658/5111/files/wudesa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7252/8292/files/9307635488.pdf
    • https://cdn.shopify.com/s/files/1/0435/6040/3103/files/84679120429.pdf
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/contagion_film_question_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5046/6471/files/rutowixoxebagazojitupix.pdf
    • https://cdn.shopify.com/s/files/1/0435/8841/9741/files/listview_set_adapter_android_studio.pdf
    • https://cdn.shopify.com/s/files/1/0434/0305/1175/files/plus_two_business_studies_short_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/1619/1138/files/convert_cdr_file_into.pdf
    • https://cdn.shopify.com/s/files/1/0458/1408/7846/files/bissell_steam_cleaner_parts_walmart.pdf
    • https://cdn.shopify.com/s/files/1/0433/3882/5887/files/xulewititovufef.pdf
    • https://cdn.shopify.com/s/files/1/0463/1029/3669/files/73285514626.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_off0000ae47.bin
a65b35f2360cf057161d7b7d0ebc7fdc0f8f3062e0694556dab550f7fc7aaae0
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE47 5648 bytes
font_01_sfnt_off0000c1af.bin
c302dc2edf66f708e0aad5f14871e02cb2236e8dbd7b08d4ce7ebafcb50fcabd
pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AF 10144 bytes