Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f50d316d55a10a…

MALICIOUS

PDF

55.5 KB Created: 2020-08-14 04:12:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a06b26800ea1717819e972448a8d808 SHA-1: 395073c71339e68d2828f93015d6d44a705aeb38 SHA-256: 02f50d316d55a10aa77ddd70f9144877133f40cd254e23acea53158da1a0af61
202 Risk Score

Malware Insights

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

The PDF contains a lure for an advance-fee scam, suggesting the user has won a prize or is expecting a parcel. It embeds numerous links, including one to a known malicious redirector, aiming to direct the user to malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=best+good+morning+images+full+hd', which is flagged as a malicious redirector.

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=best+good+morning+images+full+hd
    • http://negov.aurorasantiago-ortiz.com/uploads/1/3/2/8/132816202/5307857.pdf
    • http://xurowuvir.aviationsecuritymanagement.com/uploads/1/3/1/4/131406390/remulepazikebil.pdf
    • http://pupujanu.onthewayotw.com/uploads/1/3/0/8/130814328/1245471.pdf
    • http://files.fitmisspati.com/uploads/1/3/2/6/132682303/5373438.pdf
    • http://files.mitradingschool.com/uploads/1/3/1/6/131607054/zamelo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/34540270522.pdf
    • https://cdn.shopify.com/s/files/1/0437/2289/9608/files/italian_food_list.pdf
    • https://cdn.shopify.com/s/files/1/0430/4994/3202/files/24297737307.pdf
    • https://cdn.shopify.com/s/files/1/0432/7738/5892/files/jelexupemuriwugibujufukad.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4675/files/riteboj.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/budget_2020_key_highlights.pdf
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/75458099986.pdf
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/wikir.pdf
    • https://cdn.shopify.com/s/files/1/0435/4143/0440/files/veserukabenigegud.pdf
    • https://cdn.shopify.com/s/files/1/0437/0730/2037/files/mijoketutazezagew.pdf
    • https://cdn.shopify.com/s/files/1/0435/0076/5336/files/dusesozasisinokibofomev.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/meter_data_acquisition_system.pdf
    • https://cdn.shopify.com/s/files/1/0438/3598/1974/files/appelle_moi_par_ton_nom_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0431/3425/5265/files/84363613919.pdf
    • https://cdn.shopify.com/s/files/1/0432/3537/7307/files/99467483789.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://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075a5.bin
2235c562e1fa72f6ef210634c9733772add24c5b7d5240ac88d893b0cea9f483		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75A5 5368 bytes
font_01_sfnt_off000087af.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87AF 3720 bytes
font_02_sfnt_off00009312.bin
815fdda53731a22dae2b991fcb3d746921de13ebf715a2e94c41cc7a5e83cfb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9312 9900 bytes
font_03_sfnt_off0000b4fb.bin
a3de2d6dbde0a8d5bcdcf3f2d62b266421d9de6eff8246aa81d51f2440211ec0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FB 8336 bytes

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