Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8f3e8cf07e180cc…

MALICIOUS

PDF

58.5 KB Created: 2020-08-10 22:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c323da8422e3a2f2fdce580901c2ef1 SHA-1: eea8c0ddb2b2e87f6893aa2d63274174a6dfe01f SHA-256: e8f3e8cf07e180cc0d76cb1ba9e0b22a5df4aa1038fb3c91536d071f58a16821
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=arabic+language+basics+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure. The primary attack pattern involves tricking the user into visiting a malicious URL disguised as a helpful PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=arabic+language+basics+pdf In PDF document text
    • http://files.kpinner.com/uploads/1/3/0/9/130969310/zokamufebos.pdfIn PDF document text
    • http://files.recoveryhumanface.org/uploads/1/3/1/1/131164174/d0fd56.pdfIn PDF document text
    • http://files.furnacefallsfarm.com/uploads/1/3/2/6/132682802/38aa2cad3a9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/85710939240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1184/1949/files/76176004144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/zigoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9546/5892/files/testy_gramatyczne_angielski_gimnazjum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6992/2714/files/45955858449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/lepometag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2165/3400/files/tritton_usb_2._0_vga_adapter_driver.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lozafawofife.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7056/files/42762444163.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9112/4643/files/boxutudowozoned.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: livelifeunbroken.com 3 samples

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000a084.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA084 25864 bytes
SHA-256: c5a081cc198f8fdb19d83c50e3760c05d4aa079d5c1b1bb2b733449ccfffe415
font_00_sfnt_off00006986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6986 5144 bytes
SHA-256: 5edb2d1ef51cd260fa33712f95f9483cec5f8ac26e7f61e4b2914d38aa7d5cb1
font_01_sfnt_off00007afa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFA 12028 bytes
SHA-256: 6000b69f01045d11f58cf73c932767f74914ec7d0d78d28e0f4ab5742a7f690a
font_03_sfnt_off0000cec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC5 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34