Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd61d479d637490…

MALICIOUS

PDF

37.0 KB Created: 2020-08-02 14:42:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63bec169ff376ec66fb088f27eb07849 SHA-1: da0b08cbf6b78b29cd0086cb7b5ce43fcfc314ea SHA-256: ffd61d479d637490fce031ad076144b0f9f96a74d6f653a75b22722a78e59d99
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious link, 'https://ttraff.cc/pify?keyword=vivid+fallout+4', suggests a redirector likely leading to malicious content. The presence of numerous other PDF links hosted on various domains, including shopify.com and custom domains, indicates a coordinated effort to distribute content or manipulate search engine results. No scripts were extracted, and the document body was heavily obfuscated, making it difficult to determine the exact payload.

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.cc/pify?keyword=vivid+fallout+4
    • http://files.dirkhasslehoff.com/uploads/1/3/1/0/131069763/giruxokigakabatisu.pdf
    • http://files.rickspearsart.com/uploads/1/3/0/7/130775063/gabezuxe_wupamovekeperaj_popapeguku_jelobavutineset.pdf
    • http://files.homescholars.org/uploads/1/3/1/3/131398504/zetuforodowelol-dubugo-nizatotekaj-mojatukilu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5636/4709/files/nascar_race_song.pdf
    • https://cdn.shopify.com/s/files/1/0431/4447/8874/files/dojometakirijave.pdf
    • https://cdn.shopify.com/s/files/1/0437/1313/4757/files/dutifilurik.pdf
    • https://cdn.shopify.com/s/files/1/0435/8114/5243/files/madeline_hunter_lesson_plan.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/90042813514.pdf
    • https://cdn.shopify.com/s/files/1/0432/3796/5986/files/tejopawugaloginan.pdf
    • https://cdn.shopify.com/s/files/1/0430/6731/0231/files/pozetefewesogov.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/bujukolutusolakekiguwojek.pdf
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/jawbone_icon_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/6123/8168/files/23841956958.pdf
    • https://cdn.shopify.com/s/files/1/0441/0051/8040/files/pipolagavop.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_off0000486d.bin
0efe616ec5b76710bf54d21159962316bbc12bd4403356070459857f363c5950
pdf-font-stream PDF embedded font (sfnt) at offset 0x486D 4396 bytes
font_01_sfnt_off0000576b.bin
03cab7b73d9341d5c4e9633dac5ab98fcbce7292fba509fe45a3426344d68a48
pdf-font-stream PDF embedded font (sfnt) at offset 0x576B 9968 bytes
font_02_sfnt_off00007968.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7968 4324 bytes