Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee480d471e631e4…

MALICIOUS

PDF

44.6 KB Created: 2020-08-15 06:40:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e1a908d99226617261ca07b93067012a SHA-1: ab62e0f5737124a6f6eb8a51d449c3f229f39233 SHA-256: eee480d471e631e495645a402642720f81578b17ec50a7bf3675df181e573e36
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body and embedded links suggest a lure related to astrology, aiming to trick users into clicking the malicious link. The presence of a link farm further indicates a malicious intent to distribute 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/pify?keyword=libra+today+astrology+answers
    • http://files.philipellisconductor.com/uploads/1/3/0/8/130813696/pefikixivepunazuxiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/2608/7064/files/muvuxevoropifov.pdf
    • https://cdn.shopify.com/s/files/1/0435/9149/9935/files/7135325129.pdf
    • https://cdn.shopify.com/s/files/1/0430/7140/6241/files/80090434753.pdf
    • https://cdn.shopify.com/s/files/1/0434/4558/4033/files/big_ip_edge_client.pdf
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/tapigevoxujanunejejukeko.pdf
    • https://cdn.shopify.com/s/files/1/0436/4242/1398/files/rerupa.pdf
    • https://cdn.shopify.com/s/files/1/0435/7256/0033/files/minecraft_how_to_move_villagers.pdf
    • https://cdn.shopify.com/s/files/1/0446/6599/5417/files/discord_bot_codes.pdf
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/89235887922.pdf
    • https://cdn.shopify.com/s/files/1/0433/1618/3198/files/nujudidadujeputawinet.pdf
    • https://cdn.shopify.com/s/files/1/0435/3140/3423/files/minuet_boccherini_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/juzapuwomonitogapa.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006596.bin
f7ad5697af1497f82d07c266b462422292d6639b1cf399b468d6f6261c618367
pdf-font-stream PDF embedded font (sfnt) at offset 0x6596 5268 bytes
font_01_sfnt_off00007793.bin
73983ccd477f0e4c07634362c0f9f13a23cea415a26bff37f7f125d59a681190
pdf-font-stream PDF embedded font (sfnt) at offset 0x7793 1936 bytes
font_02_sfnt_off000080d6.bin
0f69b7625e8e1cc9f5bf01ff5eebe703f80934f3a39826b0a80057c7738365c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x80D6 10744 bytes