Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb80dd6135a77b28…

MALICIOUS

PDF

48.3 KB Created: 2020-08-27 20:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e40c9274063df27952ca6952b2725d9c SHA-1: 24f83471edcd561385da0107274ee3bf65d3236f SHA-256: fb80dd6135a77b28d6b62531828228a5bbaf535027d667c899192f5dd17fbc90
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link that promises a 'madden mobile hack no human verification'. This link redirects to 'ttraff.ru', which is flagged as malicious redirector infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing the lure. The presence of numerous embedded links, many pointing to Shopify domains, suggests a link farm or SEO manipulation tactic to distribute the malicious payload.

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.ru/pify?keyword=madden+mobile+hack+no+human+verifica
    • http://files.bellanaturareggio.org/uploads/1/3/1/3/131398093/nilaxekalilutawo.pdf
    • http://files.silvertonffa.com/uploads/1/3/2/7/132740186/niwajexotananes_fapiwewuliz_dirupetik_lasomofoj.pdf
    • http://vemateza.aspe-dc.org/uploads/1/3/1/4/131437987/8162349.pdf
    • https://cdn.shopify.com/s/files/1/0436/2177/7570/files/acrylic_clear_sheet_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0439/3166/4552/files/95498068052.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3250/files/gobuw.pdf
    • https://cdn.shopify.com/s/files/1/0441/2728/9496/files/lineman_s_and_cableman_s_handbook_12th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/puxazup.pdf
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/us_history_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/3066/7673/files/69490775494.pdf
    • https://cdn.shopify.com/s/files/1/0435/2642/2696/files/60113372593.pdf
    • https://cdn.shopify.com/s/files/1/0432/3350/9535/files/joziviwareritujiduguxaz.pdf
    • https://t.co/TlFDtx58YMFreeL
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007f0c.bin
47c2c378c0c129d5217dfa517f7231290556eb3f9234b0b651d0d155c4c68361
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F0C 5352 bytes
font_01_sfnt_off00009119.bin
901d9f0e2318c59482be283950168e125f57ff262d9f8e68b736c45409c658d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x9119 10232 bytes