Malicious PDF — malware analysis report

Static analysis result for SHA-256 6162fbb9d15005b3…

MALICIOUS

PDF

112.6 KB Created: 2020-09-10 00:24:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 988b05eebd546d6923e6e2d749db9611 SHA-1: 080b14164d5f472394045de1cdbcb8d5ae05ab78 SHA-256: 6162fbb9d15005b3f55a1434e697e02a7021cd6ec8bea1cabec1a53fff36481c
194 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and an advance-fee scam lure. It embeds a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to a phishing or scam page. The document body, though heavily obfuscated, contains a reference to the malicious URL, reinforcing the scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=tamil+album+songs+2018++isaimini.+com
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/7914/7430/files/80007102423.pdf
    • https://cdn.shopify.com/s/files/1/0428/5035/3318/files/rainbow_rowell_attachments_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7700/files/bncc_2020_educao_infantil.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/jexori.pdf
    • https://cdn.shopify.com/s/files/1/0429/2860/3295/files/o_que__capitalismo_primeiros_passos.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7796/files/retafigawodomololunezag.pdf
    • https://cdn.shopify.com/s/files/1/0431/1177/6416/files/brochure_templates_free_canva.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/arduino_mega_datasheet_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/89280937039.pdf
    • https://cdn.shopify.com/s/files/1/0438/3889/8333/files/ann_patchett_commonwealth.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/toyota_aqua_2020_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/73397621594.pdf
    • https://cdn.shopify.com/s/files/1/0440/3517/8661/files/landscape_design_plans.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013d92.bin
6bda826ac01aca7e9328bda6871ee59ad4ca17348007a08f66258bb4331dbe7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x13D92 13084 bytes
font_01_sfnt_off0001684a.bin
30983e4224d080dd8054f4c907d9acb4c6f1ff09801bcedcf79ffbc0e15fceb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1684A 5664 bytes
font_02_sfnt_off00017b88.bin
ad6adc5070108ed2584a6420370de309c5ebe34fcb8056568975c924d5630531
pdf-font-stream PDF embedded font (sfnt) at offset 0x17B88 10592 bytes
font_03_sfnt_off00019fb9.bin
62057359ad22ed6c79ab6a94c34af50e7f9192dd49eed379a27769cab1f8071c
pdf-font-stream PDF embedded font (sfnt) at offset 0x19FB9 16064 bytes