Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c0b295c068a163…

MALICIOUS

PDF

40.7 KB Created: 2020-09-02 02:32:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1aa1c2e56483c1c174049dd949eb9f1a SHA-1: 7cd3208c1d19c99a74cd91421dbe8a9a4d77449c SHA-256: e0c0b295c068a163e14b75c1e36503af2bcb189c4aaf6cc574408bcf7c7c0c15
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wix?keyword=achutam+keshvam+ram+narayanam+song'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains the same suspicious URL. This suggests the primary intent is to lure the user to a malicious site.

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.ru/wix?keyword=achutam+keshvam+ram+narayanam+song
    • https://static.usrfiles.com/ugd/bf07b1_ee7a7328f33b406a9d745f4004c91787.pdf
    • https://static.usrfiles.com/ugd/822ecd_d45acc42ef5b4fdf9971bdda236e1cc2.pdf
    • https://static.usrfiles.com/ugd/0cd019_c0613608ef334054b7c408a04eceff39.pdf
    • https://static.usrfiles.com/ugd/6c032c_e10f5c8461184ddca287ef6fe9b66a1f.pdf
    • https://static.usrfiles.com/ugd/90c678_176ad5fdea3a47d2a4b0aa1d1a48a122.pdf
    • https://static.usrfiles.com/ugd/3e0cb9_e7d1719dc1244426bc19740dae50bee0.pdf
    • https://static.usrfiles.com/ugd/e32576_60715f7035744bd9b16b7140d84a2170.pdf
    • https://static.usrfiles.com/ugd/455f95_3dacabb59a874b1086a79aa4289041c1.pdf
    • https://static.usrfiles.com/ugd/e8506d_528bf7eff3e24398a67d0191997eb0e0.pdf
    • https://cdn.shopify.com/s/files/1/0434/2130/2935/files/antivirus_app_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/fortnite_template_for_cake.pdf
    • https://cdn.shopify.com/s/files/1/0462/5639/0295/files/lujefefifixaxuvilimineb.pdf
    • https://cdn.shopify.com/s/files/1/0428/1883/0492/files/moviescounter_2018_hollywood_movies.pdf
    • https://cdn.shopify.com/s/files/1/0438/0108/4064/files/96293574699.pdf
    • https://cdn.shopify.com/s/files/1/0432/2879/0946/files/noxedojekibob.pdf
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/julutason.pdf
    • https://cdn.shopify.com/s/files/1/0427/9618/7815/files/jevevi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d21.bin
f6ed7f04162adc078afb00bfc0c6bec7f1fdb8d9dd889ea026ca21714f20430a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D21 5232 bytes
font_01_sfnt_off00005ecc.bin
a0dc0bba48a47260b10b7690a4299445d70071223c2a4cff6eb9013f63d8b14a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECC 12904 bytes
font_02_sfnt_off0000878e.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x878E 4324 bytes

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