Malicious PDF — malware analysis report

Static analysis result for SHA-256 027cbcf1073df39e…

MALICIOUS

PDF

121.0 KB Created: 2020-08-11 15:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 909afd2762b9656d52e72a8f38ec11c9 SHA-1: 8ae416711116dc1a1602654fd7ae419370a13a06 SHA-256: 027cbcf1073df39e93f4f2250a8a0115c059f117acc4d96f01d86bb94225dd05
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many of which point to a link farm designed to generate traffic. One prominent link, disguised as a download for 'Ibps result po 2020 pdf download', redirects to a known malicious redirector infrastructure at ttraff.ru. This suggests a phishing or scam attempt to drive traffic to malicious sites.

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=ibps+result+po+2020+pdf+download
    • http://fiwigil.nikospsaltopoulos.com/uploads/1/3/2/6/132696398/9e45bd767c.pdf
    • http://files.elizabethnugent.com/uploads/1/3/2/6/132681992/46a5f5bdbbbbf04.pdf
    • http://files.worldseatraveler.com/uploads/1/3/0/8/130874012/633831.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/78980056759.pdf
    • https://cdn.shopify.com/s/files/1/0447/2792/6937/files/autism_spectrum_disorders_foundations_characteristics_and_effective_strategies.pdf
    • https://cdn.shopify.com/s/files/1/0435/2249/0532/files/zelda_chest_sound.pdf
    • https://cdn.shopify.com/s/files/1/0433/4577/2698/files/pdf_to_word_download_free_converter.pdf
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/35545080437.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/62061440339.pdf
    • https://cdn.shopify.com/s/files/1/0432/0083/9841/files/69610312594.pdf
    • https://cdn.shopify.com/s/files/1/0433/8214/5182/files/latitililolojowelamuregu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0626/files/zobuzukorumafe.pdf
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/zodeva.pdf
    • https://cdn.shopify.com/s/files/1/0447/9506/8567/files/2020_cadillac_sts_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/9624/3364/files/white_rodgers_1f80-_361.pdf
    • https://cdn.shopify.com/s/files/1/0428/6464/0159/files/mojazeguf.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_off00019577.bin
0388dad41b3992f3c42051479d30f3d0dc4ac067f4fc36a95859bb90ce7418f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19577 5476 bytes
font_01_sfnt_off0001a830.bin
9a710077c8dac1b6cb775ffaaefc20c77811d11b2832f2621f0631a6e9d78e0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A830 15308 bytes

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