Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f7dd6601f2a60cb…

MALICIOUS

PDF

34.4 KB Created: 2020-08-22 00:11:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4e80bebce68b5163bcb55fc65d11c1e SHA-1: f91107338a6f49ca363d44968d5a09c07eb1f6ce SHA-256: 7f7dd6601f2a60cb8e37f8650663c9fb686379d5faa82e26eda3f829d81a61a7
128 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous embedded URLs, many pointing to Shopify. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The combination of these factors suggests a phishing attempt designed to redirect users to malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cgp+ks3+maths+answers+online
    • http://files.blackhawkrailwayhistoricalsociety.org/uploads/1/3/0/7/130739032/zexijibevakovu.pdf
    • http://bewuzipek.groovespirit.com/uploads/1/3/0/8/130873851/7202571.pdf
    • http://files.caraleemath.com/uploads/1/3/2/8/132815924/5b1431fe3be.pdf
    • http://dugezo.schiltec.com.au/uploads/1/3/0/8/130873825/bituzumomuliza.pdf
    • http://zapokiru.bookkeeperlady.com/uploads/1/3/2/6/132695306/binexodoxiwixub_xazutefareva_vokunisuvirev_zudiluvisebeses.pdf
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/lujitelorazoz.pdf
    • https://cdn.shopify.com/s/files/1/0429/6428/7651/files/inside_man_full_movie_300mb.pdf
    • https://cdn.shopify.com/s/files/1/0428/9966/9151/files/berakixatudasom.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdf
    • https://cdn.shopify.com/s/files/1/0438/5928/0022/files/biogeochemical_cycles_webquest_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/musekojor.pdf
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/cnc_turning_programming_fanuc.pdf
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/jefejopozugi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/gangster_scene_song_djpunjab.pdf
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/nufijixumebidutitesuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/0360/8216/files/20344658637.pdf
    • https://cdn.shopify.com/s/files/1/0454/8267/2278/files/furthermore_book.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004928.bin
924210b2a004c89fe88484184750287ba57b2bdb1704cf31eb986e1f25bc081f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4928 5460 bytes
font_01_sfnt_off00005ba8.bin
a5182dab8ce555d0fa456466ee56658184942ab4f5acc8e9a019c7a2806c1ba9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA8 9732 bytes