Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa92a9cf03e507d…

MALICIOUS

PDF

41.9 KB Created: 2020-08-17 02:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 764554f0c8482c3c88aa2f0a265e85c3 SHA-1: d3822f88e9fdbb2e06c562328feeede638c580a0 SHA-256: 0fa92a9cf03e507d6adb799f26406b9d0238dee8c4f1dc9238b9d6d7895af7af
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains a link that redirects to a known malicious URL, disguised with a movie title to appear legitimate. Heuristics indicate this is an advance-fee scam lure, likely intended to trick users into downloading further malicious content or providing personal information. The document body contains multiple URLs, including the primary malicious redirector, suggesting a link farm used for SEO poisoning or to distribute payloads.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=nawazuddin+siddiqui+movie+babumoshai+bandookbaaz
    • http://files.dymondelise.com/uploads/1/3/0/7/130775025/785b4906f4072.pdf
    • http://files.heartlandpools.com/uploads/1/3/1/3/131382447/389045.pdf
    • http://files.mikeharrisdesign.net/uploads/1/3/2/8/132813998/1314744.pdf
    • http://files.redeemeddesigns.net/uploads/1/3/0/9/130969300/683b4394cf2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0440/2138/3333/files/23885031601.pdf
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/beroriwoveligu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3489/4755/files/53218903106.pdf
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/12820060877.pdf
    • https://cdn.shopify.com/s/files/1/0433/9305/6933/files/13804838366.pdf
    • https://cdn.shopify.com/s/files/1/0437/7798/2626/files/jump_math_grade_6_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0437/2830/6330/files/report_power_outage_cartersville_ga.pdf
    • https://cdn.shopify.com/s/files/1/0432/1378/3199/files/algebra_1_textbook_holt_mcdougal.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/13720745669.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006502.bin
a8dcc628572d2720a505d4af2ffece77ac3acda51245a77d2e9bb4c5f16974f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6502 5436 bytes
font_01_sfnt_off00007779.bin
3297978124600bf9e089050fa1b6a7177360e1bab60ada753842a20b4cbedbfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7779 10340 bytes

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