Malicious PDF — malware analysis report

Static analysis result for SHA-256 32b3300af9db2c50…

MALICIOUS

PDF

63.6 KB Created: 2020-08-15 02:43:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32e1b075b78c162d31e199725f82e8b4 SHA-1: dab144bddc654d818e9587f4221665566f515546 SHA-256: 32b3300af9db2c50eff4948a87adb822158e1a4bd168b7b2dea96a6f18b7ba54
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text related to a "Lamelo ball draft report" and the malicious URL, suggesting a lure to entice users to click the link. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing 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=lamelo+ball+draft+report
    • http://files.striba.net/uploads/1/3/1/3/131380413/9297027.pdf
    • http://files.clonbonnyns.com/uploads/1/3/2/7/132710783/rewutagaretume-lofigerewuweba-dagafomodugidub.pdf
    • http://files.longhornsdivingcamp.com/uploads/1/3/1/4/131437276/momavowilubumil-vavasiputodon-foxukiru-bixebojozivu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/nunigaguvijip.pdf
    • https://cdn.shopify.com/s/files/1/0434/0449/2965/files/websocket_vs_socket._io.pdf
    • https://cdn.shopify.com/s/files/1/0438/0996/4192/files/lusunosolugopuxopibal.pdf
    • https://cdn.shopify.com/s/files/1/0434/2621/8134/files/opposite_of_misogamist.pdf
    • https://cdn.shopify.com/s/files/1/0431/2884/8538/files/6th_grade_vocabulary.pdf
    • https://cdn.shopify.com/s/files/1/0430/3696/7063/files/98435782631.pdf
    • https://cdn.shopify.com/s/files/1/0443/4237/8652/files/best_converter_to_word_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/2793/0011/files/xarunalamunora.pdf
    • https://cdn.shopify.com/s/files/1/0431/7147/9709/files/87618623210.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/you_know_my_name_chris_cornell_lyrics.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/
    • https://cdn.shopify.com/s/files/1/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be2d.bin
824c3603fb08584e6543f73737f91e759d642d69fcccb4d732d49bff90e7331a
pdf-font-stream PDF embedded font (sfnt) at offset 0xBE2D 5092 bytes
font_01_sfnt_off0000cf61.bin
300ebf0d7f5c4e0cb67402c1eea636ab00691e066679956a31b0045e941c2825
pdf-font-stream PDF embedded font (sfnt) at offset 0xCF61 9964 bytes