Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce1125c311ee390d…

MALICIOUS

PDF

50.7 KB Created: 2020-08-19 21:32:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e48a4878003e615fe42f66370d06e741 SHA-1: c3aeb1cfc5ca195319be31617ac9b4693ff9601f SHA-256: ce1125c311ee390d83180934c9e60946643bbbc03dca5220e726ae79e0f9624b
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains the string 'Ijaazat 1987 full movie free' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness. No scripts were extracted from this sample.

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=ijaazat+1987+full+movie+free
    • http://files.spice4kids.org/uploads/1/3/0/7/130775413/pugufuginadi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5020/4316/files/89936032055.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3440/files/27003466932.pdf
    • https://cdn.shopify.com/s/files/1/0430/5797/1362/files/muzewugima.pdf
    • https://cdn.shopify.com/s/files/1/0436/0414/8381/files/99274275387.pdf
    • https://cdn.shopify.com/s/files/1/0431/2000/1178/files/maplestory_2_maple_guide_music.pdf
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/cloudformation_template_s3_bucket_policy.pdf
    • https://cdn.shopify.com/s/files/1/0433/4914/7803/files/34487299330.pdf
    • https://cdn.shopify.com/s/files/1/0434/8621/6352/files/sasinom.pdf
    • https://cdn.shopify.com/s/files/1/0434/2140/1237/files/3902817355.pdf
    • https://cdn.shopify.com/s/files/1/0428/6749/0975/files/political_sociology_meaning_nature_and_scope.pdf
    • https://cdn.shopify.com/s/files/1/0429/0448/6055/files/28137922540.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_off00007bf6.bin
cf7f726aaf0238da3ac350c83857ab973c075a61ed06f82082cbe038a2e4d26b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BF6 5116 bytes
font_01_sfnt_off00008d84.bin
4980e2b19eafa529b4a95aae71eb31446110c76353abade274f71ea19eacb4f1
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D84 10072 bytes
font_02_sfnt_off0000afd0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD0 4324 bytes