Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c6dfe6bd21954c1…

MALICIOUS

PDF

81.4 KB Created: 2020-08-09 15:13:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e314a8debf95efbcaf56c8eb9dbebd6b SHA-1: 9e8dcae1cbc1f540676205dd583a4f97ca0cf125 SHA-256: 6c6dfe6bd21954c15072afccbc635c5514ce09934ba66b8fd69eaddc311467f7
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a CCTV camera system guide. This indicates a phishing or scam attempt. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to manipulate search engine results or 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=how+to+work+cctv+camera+system+pdf
    • http://pifig.jenniecaseysinnott.com/uploads/1/3/1/6/131606289/zijoletem.pdf
    • http://files.walkonfootball.com/uploads/1/3/2/6/132695339/7706785.pdf
    • http://files.hirzelinteriors.com/uploads/1/3/2/6/132681783/junugikozetave_wudulatabemeba_teparolos_gevijobugudut.pdf
    • http://files.hirailmodulartrainclub.com/uploads/1/3/0/7/130775969/diwad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/sunazexapifexuroteja.pdf
    • https://cdn.shopify.com/s/files/1/0436/8983/6697/files/basewituzonusajasamewuwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2902/0317/files/terevarobexavavini.pdf
    • https://cdn.shopify.com/s/files/1/0438/0295/1842/files/zarirusaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/sulofex.pdf
    • https://cdn.shopify.com/s/files/1/0437/0622/0697/files/balance_sheet_solved_examples.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mubexuv.pdf
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/dakoxiwepade.pdf
    • https://cdn.shopify.com/s/files/1/0433/9875/8557/files/grammar_activities_for_adults.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff05.bin
cca5d5ae3443ffb641384031c41f3a24c8693dd7892f71450344a7395272c366
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF05 5548 bytes
font_01_sfnt_off000111ea.bin
35e8d45cb1f09b9f88778205ca825e7d2306ced43cd9a7631a745382d024d22c
pdf-font-stream PDF embedded font (sfnt) at offset 0x111EA 11488 bytes