Malicious PDF — malware analysis report

Static analysis result for SHA-256 2174c79f01173ddc…

MALICIOUS

PDF

50.9 KB Created: 2020-08-09 03:59:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a07767aaa6755eac6adc8aaa900f4061 SHA-1: 22b4a5c99b4be7d34b40fa8fa3ddee568b2d0a3d SHA-256: 2174c79f01173ddc66a0a2f2cae2cd1db5fdd580211ee0bbd9bca6948acf0728
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple embedded links, with a primary link to `https://ttraff.ru/pify?keyword=gk+capsule+may+2020+pdf`, which is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a lure for phishing or malware delivery. The presence of numerous other PDF links points to SEO manipulation for traffic generation. No scripts were extracted, but the embedded links are sufficient to indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.ru/pify?keyword=gk+capsule+may+2020+pdf In PDF document text
    • http://files.dilanchyanart.com/uploads/1/3/0/7/130775131/3b5ea5d1635a24e.pdfIn PDF document text
    • http://files.pslcrazyquilters.org/uploads/1/3/1/8/131871586/21d59fbe3e.pdfIn PDF document text
    • http://files.radicalhealing.us/uploads/1/3/0/7/130776786/4246df1a.pdfIn PDF document text
    • http://files.drkasian.com/uploads/1/3/1/4/131437491/namemadiwufofij-zaxerebotomepob-pixizix-temuwuvubezul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4023/4902/files/99072363384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/sexubowasapeloto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9867/5102/files/attestation_de_formation_en_informatique.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2026/3322/files/2272390880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7215/0942/files/28599988676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1867/1512/files/fallout_4_console_commands_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6117/4687/files/35674081357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5841/2185/files/kotor_android_mods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6826/7423/files/asperger_s_syndrome_for_dummies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/wukumadavofezame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/43721582856.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6617 5676 bytes
SHA-256: c7992f45170c4d16a5e4d4ce59c8fd9ab1451dead223c674b155fd5f57cfbe39
font_01_sfnt_off00007973.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7973 14888 bytes
SHA-256: 255eea33d573e68d101fe0dffb0b9f103ae3ad86663140a0e6a09d4c5dd062b4
font_02_sfnt_off0000a80c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA80C 16164 bytes
SHA-256: ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8