Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2f187e05c87cfd5…

MALICIOUS

PDF

72.8 KB Created: 2020-08-26 00:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d14678ef57f4c40b5908bdd4d19c5a20 SHA-1: f0d63b06e703e9efa95880ce1d32bf5ca8eebbbc SHA-256: c2f187e05c87cfd50ced7fe2cbdcf192074a25911126d94c6ce3ab986be58a66
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to Theodore Roosevelt and the target URL, suggesting a lure. The presence of numerous other PDF links, many hosted on Shopify, indicates a potential link farm or SEO poisoning tactic to 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=theodore+roosevelt+the+man+in+the+arena
    • http://files.giafrino.com/uploads/1/3/2/7/132740639/f47e52667bea80.pdf
    • http://files.hencecounseling.com/uploads/1/3/1/4/131407493/9063356.pdf
    • http://files.pnagkc.org/uploads/1/3/0/8/130874566/pemulewebikijab.pdf
    • http://sejog.jyliannmariedavis.com/uploads/1/3/1/8/131872225/33e2f6.pdf
    • http://dasomemiw.mdlashesllc.com/uploads/1/3/2/7/132741508/xevekebem_suwurediju.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/new_black_panther_party_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0432/8839/5936/files/28194019125.pdf
    • https://cdn.shopify.com/s/files/1/0450/1009/2182/files/pufuratigom.pdf
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/sojimiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76685421079.pdf
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/jubogokafujamafezepu.pdf
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/japugugoliwuni.pdf
    • https://cdn.shopify.com/s/files/1/0428/4959/9644/files/75000783921.pdf
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/9614287414.pdf
    • https://cdn.shopify.com/s/files/1/0429/5262/2236/files/geometry_eoc_practice_test_2.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_off0000e375.bin
d9c008b124a51337eb8ee2e1aad87724c323ad0a477748255b665e2ae036bc5d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE375 5076 bytes
font_01_sfnt_off0000f491.bin
91891edc3b6734864fd46f5284a8ef6a0067f174c05f7911060e98d28006b16c
pdf-font-stream PDF embedded font (sfnt) at offset 0xF491 9896 bytes