Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c47603d82976ae…

MALICIOUS

PDF

34.5 KB Created: 2020-08-12 07:28:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 12e5f427943e54404c60b451f312e14f SHA-1: 49fb5ef39afc648e479b07cb951d25fb55c517d5 SHA-256: 00c47603d82976ae68610d5cfbf53dc3a4ab5f33afb81e4657c9408d08a45975
154 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Ebara submersible pump catalogue pdf', suggesting a lure to disguise the malicious intent. The presence of a large number of external PDF links, many pointing to benign Shopify URLs, indicates a link farm SEO tactic to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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/wb?keyword=ebara%20submersible%20pump%20catalogue%20pdf
    • http://wozir.grpfilms.com/uploads/1/3/1/1/131164250/bojaragomanilupem.pdf
    • http://files.flyingmissionusa.org/uploads/1/3/1/4/131406885/3e9014.pdf
    • http://files.mindysmagicalbling.shop/uploads/1/3/1/4/131437457/laguni.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0434/5751/1590/files/rawosakazijitatoxiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/fuveguzew.pdf
    • https://cdn.shopify.com/s/files/1/0433/1077/6473/files/78603279317.pdf
    • https://cdn.shopify.com/s/files/1/0433/4429/8133/files/alternative_investments_caia_level_i_wiley_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/7714/8571/files/smu_id_card.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/fafuwefexutegajen.pdf
    • https://cdn.shopify.com/s/files/1/0431/1898/5370/files/woxuduliloke.pdf
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/38426211751.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/19417815280.pdf
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/34197289736.pdf
    • https://cdn.shopify.com/s/files/1/0448/0460/4066/files/v8_lawn_mowers.pdf
    • https://cdn.shopify.com/s/files/1/0431/5453/8658/files/32395691936.pdf
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/ladewexepebuvedapa.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_off0000483d.bin
a03c746261d2f78bdfd0c3cad9fde452f8d60363e4983f735a076485a7a6f025		 pdf-font-stream PDF embedded font (sfnt) at offset 0x483D 5572 bytes
font_01_sfnt_off00005b18.bin
958b4b3e9f48dc5f172d372230f9c586683d59d77488515a49f6df0f9b32b233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B18 10012 bytes

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