Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b598c58c9744a38…

MALICIOUS

PDF

46.7 KB Created: 2020-08-16 19:02:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7a3a422b86020c91b32809648493c97 SHA-1: e6fca8fed6f46a472fb54c0cd0c27d13048033ed SHA-256: 1b598c58c9744a385dcde8a4bf98cd51ab34bd5388147db3b5c18008bbb4415b
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.cc/pify?keyword=my+talking+angela+cheats+apk+free'. This indicates the document is designed to redirect users to potentially harmful content, likely a scam or malware download, under the guise of providing game cheats. The presence of a large number of external PDF links further supports a link farm or redirection strategy.

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.cc/pify?keyword=my+talking+angela+cheats+apk+free In PDF document text
    • http://files.vrlabucd.com/uploads/1/3/0/7/130776296/85c864.pdfIn PDF document text
    • http://files.longbeachrental.ca/uploads/1/3/2/6/132681394/kadudusala.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/ielts_listening_map_practice_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/29621397564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/josanuvivadadubiwivejevag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9911/9013/files/zujuvezodamikurek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1314/files/60546223466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8508/4310/files/96487654722.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6820/2901/files/apsrtc_live_track_bus_app.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6539/3831/files/45973712255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8130/1158/files/collection_framework_in_java_ebook.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://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ec1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC1 5448 bytes
SHA-256: e66e0b4ff45dfea86c8fd4050a765172635eb75c374170b52e439ee086fb4d77
font_01_sfnt_off00007148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7148 9088 bytes
SHA-256: 4e2a9a8347c25f5a3f2ba5246b070e94975b1a171ed56ae5c33a3272d239cf82
font_02_sfnt_off00008a65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A65 10348 bytes
SHA-256: 03f75692f631ed666ce5af1bc05bf83dbba0242401c929d22ed905a3ee0e9059

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