Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae0563866736b36…

MALICIOUS

PDF

43.1 KB Created: 2020-08-15 01:09:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53cdbc8c3d29f8d9304bc9d6fbe154be SHA-1: 9fd8a5c6da08a885df6fdcf61b49bb13ed1bc105 SHA-256: 0ae0563866736b3668d2cdaaba0bf90b3f581aef99db2ba7b2f967f18731a7c2
154 Risk Score

Malware Insights

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

The PDF document contains numerous links, including one pointing to a known malicious redirector infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, appears to contain text related to a workout sheet and the malicious URL. The presence of a link farm suggests an attempt 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.cc/pify?keyword=incinerator+p90x3+workout+sheet
    • http://goduman.wowpartyrentals.org/uploads/1/3/1/6/131606407/7a1a5a6c2b9f0.pdf
    • http://sukem.savannahsclayspot.com/uploads/1/3/0/8/130874050/jufedevuvubovekos.pdf
    • http://files.heartwoodpath.com/uploads/1/3/1/3/131379113/vugewa.pdf
    • http://gixaride.zionec-mohnton.org/uploads/1/3/2/6/132683014/rozoposekajiwitewub.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0452/5981/7117/files/63774868823.pdf
    • https://cdn.shopify.com/s/files/1/0432/5212/1762/files/honda_shadow_1100_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8784/7843/files/janibuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3692/5342/files/79920994062.pdf
    • https://cdn.shopify.com/s/files/1/0428/4484/8295/files/91390017407.pdf
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/87186412272.pdf
    • https://cdn.shopify.com/s/files/1/0433/5193/3078/files/6038339372.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dagezaluvonanapukinuwit.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/dorugibezar.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_off0000697f.bin
de6dfc1498a73ebf226adf60b2255bc529225b54d172a07bca6eb0259787d30b
pdf-font-stream PDF embedded font (sfnt) at offset 0x697F 5612 bytes
font_01_sfnt_off00007c95.bin
712b38074000708f0f69be6bcb628ae2342256f4671689578c2cc8368140f813
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C95 10344 bytes