Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a6998fd6e5dd1af…

MALICIOUS

PDF

45.8 KB Created: 2020-08-02 18:05:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3b5b0131eccba1ebfc1f9b3eb2a1e70 SHA-1: 7dc2b847775755157ea918fc5404cb4271a44a99 SHA-256: 9a6998fd6e5dd1af1518571a1de3af141cb247ef9050c4ca11776e5f4242de7d
154 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, indicating a phishing or malicious redirection attempt. The ML classifier strongly flagged this PDF as malicious. The document body contains text related to 'Maa tv schedules' and embedded URLs, suggesting a lure to a malicious site disguised as schedule information.

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=maa+tv+schedules
    • http://files.karinamontieldesign.com/uploads/1/3/0/7/130775998/3fbd81ae.pdf
    • http://files.prehistoriccollector.com/uploads/1/3/1/1/131164351/womasijin.pdf
    • http://files.theposhlifeoffashion.com/uploads/1/3/0/7/130775466/tepinurivuse-lofatasejoboji.pdf
    • http://files.griswoldart.org/uploads/1/3/1/8/131856285/2713342.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/59677855830.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dusegu.pdf
    • https://cdn.shopify.com/s/files/1/0427/5830/8006/files/74485388564.pdf
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/85024684590.pdf
    • https://cdn.shopify.com/s/files/1/0433/7752/4888/files/84641529705.pdf
    • https://cdn.shopify.com/s/files/1/0434/7238/8246/files/155230535.pdf
    • https://cdn.shopify.com/s/files/1/0433/8001/5262/files/44109614630.pdf
    • https://cdn.shopify.com/s/files/1/0428/3914/6662/files/fewupudugikuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/3128/8216/files/kumitokubiwabepuwaxore.pdf
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/53759570152.pdf
    • https://cdn.shopify.com/s/files/1/0431/3343/6055/files/raze_2_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0433/3253/4422/files/xikebobevuwowaluxugilomew.pdf
    • https://cdn.shopify.com/s/files/1/0430/9703/0805/files/panigixamuvexoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/29315339004.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066a2.bin
b7067c597765ee38da73b57f489c40d80783cab967874c91b6e2be3e315adaab
pdf-font-stream PDF embedded font (sfnt) at offset 0x66A2 4996 bytes
font_01_sfnt_off000077b0.bin
0f602f22b82d57ed630bf8aefd3097e9c1dae27b614113fd43d3ca35bc1618a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x77B0 18356 bytes