Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ff7a5558a814586…

MALICIOUS

PDF

40.0 KB Created: 2020-08-24 10:58:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21ce81dd357e051c14c73684483111a1 SHA-1: ff914beaddb5706cfd29894fd86d1921dce42138 SHA-256: 9ff7a5558a814586c755b9ea0b6d2fc73199b3346c4d0240262b0a139c672d13
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is likely used to redirect the user to a malicious site for phishing or malware delivery. The document also contains a large number of embedded links, many pointing to Shopify, which is flagged as a PDF link farm. The ML classifier strongly supports the malicious verdict.

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=codashop+mod+ml
    • http://files.stellaorienssphynx.com/uploads/1/3/1/1/131164386/sesoxowini.pdf
    • http://files.bethelfriends.net/uploads/1/3/1/4/131483603/tepuritazadi_bimikipe_zujivuvuzuvavir.pdf
    • http://nawaj.northernpridesportsacademy.com/uploads/1/3/0/9/130968996/33f9d5384.pdf
    • http://komip.ruportpt.com/uploads/1/3/1/6/131606490/wixoxigolomifozuda.pdf
    • http://dakin.stagerockperformancehorses.com/uploads/1/3/1/1/131163890/dekapunasamupijopif.pdf
    • https://cdn.shopify.com/s/files/1/0429/3672/9766/files/61580289649.pdf
    • https://cdn.shopify.com/s/files/1/0439/4795/0248/files/rebewanipakufizon.pdf
    • https://cdn.shopify.com/s/files/1/0431/8478/3509/files/xaxelonuvunowefifu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/bhagavad_gita_by_swami_chidbhavananda.pdf
    • https://cdn.shopify.com/s/files/1/0431/2013/2247/files/reduce_size_mac_command_line.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/kabavenavo.pdf
    • https://cdn.shopify.com/s/files/1/0435/5384/9499/files/89222006099.pdf
    • https://cdn.shopify.com/s/files/1/0435/7790/1219/files/bonuxuginemineg.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4338/files/linking_verb_worksheets_with_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0436/1401/1555/files/84849025454.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_off00005533.bin
4f4f27a654daed6d16e129f094ccf1ac67c804c110dab97496061e27a69b0a9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5533 4560 bytes
font_01_sfnt_off000064a8.bin
48184e440f4c70c184b24f5b0d9a0450e45f32d293179496a1bdfb352ad841ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A8 9584 bytes
font_02_sfnt_off00008573.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8573 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.