Malicious PDF — malware analysis report

Static analysis result for SHA-256 009ff3a154e8d308…

MALICIOUS

PDF

52.5 KB Created: 2020-08-22 08:45:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a4546f8db9f3dc712ee3ddd10326cf4a SHA-1: b52952d7b989286efbe1604df6c14ee67d98a68f SHA-256: 009ff3a154e8d3083a6b4e2236e324661e88773c5e9de9743ffbdaddd55c9bce
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body text, though partially obfuscated, includes the phrase 'Hazop report template' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly flagged this PDF as malicious.

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=hazop+report+template
    • http://files.revartcolorado.com/uploads/1/3/2/7/132712358/firelel.pdf
    • http://gegimi.fortheboysblog.com/uploads/1/3/0/8/130814328/jijilifewep.pdf
    • http://files.stj500westernus.com/uploads/1/3/1/3/131398292/e8ca0.pdf
    • http://files.wired4successlifecoaching.com/uploads/1/3/1/3/131381976/2845149.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/getinomatigewajafopat.pdf
    • https://cdn.shopify.com/s/files/1/0427/6885/9303/files/byond_game._ss13._moe_7777.pdf
    • https://cdn.shopify.com/s/files/1/0429/2260/6759/files/degradacin_ambiental.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/15243707800.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0810/files/intergovernmental_panel_on_climate_change_report_2013.pdf
    • https://cdn.shopify.com/s/files/1/0431/0918/7750/files/vegudepamajare.pdf
    • https://cdn.shopify.com/s/files/1/0432/1060/4705/files/group_checkbox_c_winform.pdf
    • https://cdn.shopify.com/s/files/1/0430/0088/9507/files/vapeximukotowisuxojawof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6305/8333/files/66868421503.pdf
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/31194490175.pdf
    • https://cdn.shopify.com/s/files/1/0433/9400/7191/files/linear_systems_and_signals_lathi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c97.bin
0727529401fe802ed9d02ac4b3bed84f53da9d0a5838f1dab7fe2f7579417e88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C97 1696 bytes
font_01_sfnt_off000084c1.bin
4615ae3583b04b6e6cba660bf08c055620690852bd269cbbbcbc7ec4d6c05b59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84C1 4432 bytes
font_02_sfnt_off000093cb.bin
8780003d85cc5dea85438276640f2c4b93ebb4b7facd94522512a2d3a32b06c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x93CB 10260 bytes
font_03_sfnt_off0000b6d5.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6D5 4324 bytes

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