Malicious PDF — malware analysis report

Static analysis result for SHA-256 180ec3cb35975682…

MALICIOUS

PDF

45.2 KB Created: 2020-08-07 17:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8946a9be47a964ef128e7239e7255add SHA-1: 2b96ee28e897f3989d9091e8620f4cebd3985dd6 SHA-256: 180ec3cb3597568252155fbab9e70af3deb2020d98bda2b44072a9983be8ac9f
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=i+love+pdf+to+jpg'. This indicates an attempt to redirect the user to a malicious site. The document body also contains numerous links, many of which are part of a link farm, further supporting a malicious intent to drive traffic to potentially harmful destinations. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classifier's high confidence suggest a malicious document, likely delivered as a spearphishing attachment.

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=i+love+pdf+to+jpg
    • http://files.tomhart.net/uploads/1/3/0/7/130775521/a096544.pdf
    • http://bamib.texaspoweragents.com/uploads/1/3/0/7/130738696/9197662.pdf
    • http://files.arubathewedding.com/uploads/1/3/0/7/130775027/pelunubejaku-betipabow-xasapevef-mumiz.pdf
    • http://files.jackjmatthews.co.uk/uploads/1/3/1/4/131437685/1e24773440.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/trends_across_the_periodic_table.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/gufigirojozozetulami.pdf
    • https://cdn.shopify.com/s/files/1/0435/2812/6618/files/pepebide.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8545/files/91863150870.pdf
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/10680043800.pdf
    • https://cdn.shopify.com/s/files/1/0428/5199/1719/files/89906017421.pdf
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/34099641173.pdf
    • https://cdn.shopify.com/s/files/1/0434/5239/9777/files/basic_english_speaking_course.pdf
    • https://cdn.shopify.com/s/files/1/0431/6571/2535/files/fairy_tail_episodes_176_english_dubbed.pdf
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/14459182313.pdf
    • https://cdn.shopify.com/s/files/1/0429/8237/5577/files/76305704894.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000620c.bin
c91e663799e0e92800148263d46e9130d7cb538a3fc40f249147ee1d03245628		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620C 4432 bytes
font_01_sfnt_off00007145.bin
a10bacd7e20396dabe7ef93db0a604b4db2ea9030be390d040514a848783d240		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7145 12692 bytes
font_02_sfnt_off00009a17.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A17 4324 bytes

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