Malicious PDF — malware analysis report

Static analysis result for SHA-256 801507eb3eadfa10…

MALICIOUS

PDF

63.8 KB Created: 2020-08-21 08:46:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a30a63aeb5da234f41902a193dfb96a SHA-1: 2cbf2d2724e0d28e5dfda44cad95a1947b70e402 SHA-256: 801507eb3eadfa109021acc3a6653f331f85e3f1fdc7d5b869f3f3514b4106f4
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service. The document body, though partially corrupted, includes the URL 'https://ttraff.com/pify?keyword=swat+valley+travel+guide', indicating a potential phishing or scam attempt. The presence of numerous external PDF links suggests a link farm or SEO manipulation tactic, likely to distribute malicious content or drive traffic to malicious sites.

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=swat+valley+travel+guide
    • http://vidugom.poppyharp.com/uploads/1/3/0/7/130739553/9763093.pdf
    • http://televu.antoniadoux.com/uploads/1/3/0/8/130814761/ccdb69ff1f6b.pdf
    • http://zapevexux.wildlifetreasure.com/uploads/1/3/1/6/131606552/bisiwifuzeju_bijubewesu_lefut_torapusupi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0435/8694/5181/files/infinity_mathematics.pdf
    • https://cdn.shopify.com/s/files/1/0444/4097/7574/files/advantages_of_leap_motion_technology.pdf
    • https://cdn.shopify.com/s/files/1/0431/2167/2356/files/citra_emulator_requirements_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/7465/8197/files/zupuvulovaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/ryobi_plunge_router_edge_guide.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7104/files/madokivenejuji.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3847/files/mesafawavumazuselesizex.pdf
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/full_form_of_acp_officer.pdf
    • https://cdn.shopify.com/s/files/1/0428/2191/0687/files/city_hunter_episode_1.pdf
    • https://cdn.shopify.com/s/files/1/0435/1731/3176/files/99501402874.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/8750447942.pdf
    • https://cdn.shopify.com/s/files/1/0435/4169/2570/files/anabole_dit_buch.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087dc.bin
a3e9caab21d556318edac1393e5d5b1700e36b56fa911c51c6f4d896fbb52963		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87DC 4836 bytes
font_01_sfnt_off00009866.bin
a483a23ebc4c771ae4aa54c385a55a60b166d2310e66d20c34275c6371f2e0cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9866 1792 bytes
font_02_sfnt_off0000a12b.bin
6380659e845e8dfd5c66e32eb301f3a1323e708234f57b1d377a1505242a84f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA12B 10464 bytes
font_03_sfnt_off0000c521.bin
c355b03855679cfc9aa35241b8bffd78996a56f0b4e7c117739fc8ace142ecb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC521 18800 bytes
font_04_sfnt_off0000e2d1.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2D1 4324 bytes

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