Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb0763234cb447fa…

MALICIOUS

PDF

43.5 KB Created: 2020-09-01 23:54:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f3d67bb28a7ab27aaf8e063cdd066be4 SHA-1: c577e69b9b27dd440cad2cd1d68386952fac2add SHA-256: bb0763234cb447fa7bb14e23058a800f1766e56e60d9dd131349b0903bae5f7b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains numerous links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=apple+like+website+template'. The document's body text, though heavily obfuscated, suggests a lure related to website templates. The presence of a link farm and a malicious redirector indicates an attempt to lead the user to a compromised or malicious site, likely for further exploitation or credential harvesting.

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/pify?keyword=apple+like+website+template
    • https://cdn.shopify.com/s/files/1/0437/8345/4871/files/fur_elise_piano_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/3184/5271/files/crysis_gameplay_android.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/fudolubipinoxigerugazosiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2704/6301/files/43716550901.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/tategakenu.pdf
    • https://static.usrfiles.com/ugd/74e9cf_4e109c4dff104ac5811dd215abb33e17.pdf
    • https://static.usrfiles.com/ugd/b8c837_62820aa7407f4a74aae379d055a23c7b.pdf
    • https://static.usrfiles.com/ugd/70c1f8_28107479db7f4358ac68385281ebe849.pdf
    • https://static.usrfiles.com/ugd/4b874d_f35d0899776442318197ca6d5de52b3d.pdf
    • https://static.usrfiles.com/ugd/590778_8cad58547d31482286961e95659d65c4.pdf
    • https://static.usrfiles.com/ugd/8b9728_98adca4d9d774c2eb40def9b88fbc2fa.pdf
    • https://static.usrfiles.com/ugd/0e2875_9b416921470b4f98b79c5494fdb5a73a.pdf
    • https://static.usrfiles.com/ugd/a59130_2f0ce83217db46818233a991f7b6ad6b.pdf
    • https://static.usrfiles.com/ugd/b8c837_580575a57c014bba9314d1ad3098713d.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_off0000620a.bin
cfea1cf56afb5a3e525d337625b8635ec984ff73e787b482a5c507f10ca79230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x620A 5156 bytes
font_01_sfnt_off00007380.bin
2b17894289ef4ac549ca5ccbfe538e6ebde94701791c0542cba9a71f2d67f349		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7380 2268 bytes
font_02_sfnt_off00007d93.bin
23c31b99bf913a3435bc4c8aacd1504b5d47226df67a89ba551be1c28d95fc90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D93 10616 bytes

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