Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce561103a2d91c4b…

MALICIOUS

PDF

70.9 KB Created: 2020-08-24 01:54:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71cb0bff581c63a2a78dec31fdce764a SHA-1: 572e216a615a744e621535d5c7e8aacc7df74fb3 SHA-256: ce561103a2d91c4ba35063a271888c023245379cd3ca0dcd75d08fb7550e6aea
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=st+john+ambulance+malaysia+uniform'. This URL is designed to lure users into clicking on it, likely leading to a malicious site. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to benign Shopify URLs but also include suspicious domains. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=st+john+ambulance+malaysia+uniform
    • http://runeruz.shopredbluffroundup.com/uploads/1/3/1/4/131453130/3825473.pdf
    • http://xisupa.zjchrome.net/uploads/1/3/2/6/132695278/vukavi-rebaliduz-kanejas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/dictionary_of_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0434/5312/0679/files/ielts_academic_speaking_answer_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/structure_in_c_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/rerenalowazakelirevopejo.pdf
    • https://cdn.shopify.com/s/files/1/0459/9808/0157/files/basic_instinct_movie.pdf
    • https://cdn.shopify.com/s/files/1/0431/5709/4559/files/xukivi.pdf
    • https://cdn.shopify.com/s/files/1/0427/9068/2783/files/gizowuvok.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/97975570207.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/arjun_reddy_breakup_song_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/20244544241.pdf
    • https://cdn.shopify.com/s/files/1/0433/2971/6374/files/52926159356.pdf
    • https://cdn.shopify.com/s/files/1/0440/1076/6486/files/alternating_current_circuits_by_ky_tang.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d55.bin
8d1be4213a13fb2acb1be6380eac3237f15757ca7c5285aa6ec53cdb774d1e1d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D55 9116 bytes
font_01_sfnt_off0000ab11.bin
4297ac5234e98e87a6e769e22a43b4ebe5ee445522ba6cb74b96124d8cc9954f
pdf-font-stream PDF embedded font (sfnt) at offset 0xAB11 5540 bytes
font_02_sfnt_off0000bdb7.bin
e48c9dcdf430aa86f9af44dc2a62a7d774f5590465aa8eff889dfcdad45e7320
pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB7 5244 bytes
font_03_sfnt_off0000cfcc.bin
557e5d9a9ba3cf4a2a97ead72664c8dde4ccb769c7ce67c290d792e28946eb45
pdf-font-stream PDF embedded font (sfnt) at offset 0xCFCC 10228 bytes
font_04_sfnt_off0000f2e3.bin
0b84c789201a9235098615599fc3f0c7a45d166425caa80e7fef59f98aa8f1e3
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2E3 17964 bytes