Malicious PDF — malware analysis report

Static analysis result for SHA-256 d180c1d253153331…

MALICIOUS

PDF

45.4 KB Created: 2020-08-11 16:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a57a35e774df06a4315005c717786c8e SHA-1: 38cb08a7717975fd2ae566bf0fdbf9a7ba4e69da SHA-256: d180c1d253153331e7e589fd8352d24f3a6e647511e93ecc41c248c8998b7b16
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a PDF download. The presence of a malicious redirector link strongly suggests an attempt to lead the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=belajar+chord+gitar+pdf
    • http://files.crescentandstone.com/uploads/1/3/1/4/131438069/napenamuna.pdf
    • http://files.cedarkeycommunitygarden.org/uploads/1/3/1/4/131407572/zaderozupofiza.pdf
    • http://finagefa.anewreligion.net/uploads/1/3/0/8/130874038/jepararoto_fazozigotosuvu_muwenu.pdf
    • http://files.simplyoursociety.com/uploads/1/3/1/3/131380000/a9fdd118ce8cd8.pdf
    • http://likilo.stocktonargo.com/uploads/1/3/1/3/131384401/f71ba8a309.pdf
    • https://cdn.shopify.com/s/files/1/0430/9476/9821/files/exploring_storyboarding.pdf
    • https://cdn.shopify.com/s/files/1/0433/7732/8278/files/negul.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3267/files/24230994019.pdf
    • https://cdn.shopify.com/s/files/1/0437/2329/2822/files/56974915912.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/50568505617.pdf
    • https://cdn.shopify.com/s/files/1/0437/3656/3866/files/2001_dodge_ram_2500_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/9772/5864/files/c5_corvette_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/2955/3575/files/97181812222.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/borutazaweluv.pdf
    • https://cdn.shopify.com/s/files/1/0429/2087/0044/files/wetherspoons_chicken_club_menu.pdf
    • https://cdn.shopify.com/s/files/1/0435/4942/5823/files/95663993866.pdf
    • https://cdn.shopify.com/s/files/1/0437/6798/8376/files/35233387487.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_off000073f7.bin
ba7aec47f8b77cc11c04bc688ef183c7983b216d931d830d818f6d3b649e28b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73F7 5364 bytes
font_01_sfnt_off00008638.bin
05aabab92f1643a455b0b3b0da9b504202258655249d76a895b6bf0c0e04f3ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8638 10060 bytes

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