Malicious PDF — malware analysis report

Static analysis result for SHA-256 250adacfbe39d1c5…

MALICIOUS

PDF

64.8 KB Created: 2020-09-01 21:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1d673ee58a68f02344d39232f8a615e SHA-1: a25e63240f615c7bd6ef29f495de7d6e44fe1210 SHA-256: 250adacfbe39d1c5b053560bd6a5abfe07a7e81e54e0f91d168fb2417a551bc4
150 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a large number of external PDF links, suggesting a link farm for SEO manipulation or distribution. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic. The presence of a download button lure and a callback lure further supports a phishing or scamming attempt.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=bhu+bsc+agriculture+form+2019+date
    • https://cdn.shopify.com/s/files/1/0454/2916/2152/files/tonight_tyler_joseph_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2440/files/dejuvulejotofujoxedogina.pdf
    • https://cdn.shopify.com/s/files/1/0437/1978/6645/files/animal_crossing_nds_rom_german.pdf
    • https://cdn.shopify.com/s/files/1/0428/9472/1187/files/kabozodijakiwijaxitaxewu.pdf
    • https://static.usrfiles.com/ugd/cc14e4_42705b6660224b2087f6c647b71ad74f.pdf
    • https://static.usrfiles.com/ugd/913720_6de5cdeb541847adad7aa95a51af9820.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4434/files/247spidersolitaire_2_suit.pdf
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/90542635160.pdf
    • https://cdn.shopify.com/s/files/1/0434/0046/2503/files/bridging_the_gap_13th_edition_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0428/6598/3655/files/kuroporapoxuxizutor.pdf
    • https://static.usrfiles.com/ugd/3b0c81_3bd3cf8e027c4435b88fa7d2b2e762f2.pdf
    • https://static.usrfiles.com/ugd/43d598_c241cc7dbb3f46edbed6af0455e12c9a.pdf
    • https://static.usrfiles.com/ugd/b910ae_08f3a22ae00740b6a3b20d4202b7bb6e.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_off0000b139.bin
d089ebe92980482b906a21dd8f96aacd3c147df76e7be650d81276617d5b761a
pdf-font-stream PDF embedded font (sfnt) at offset 0xB139 6104 bytes
font_01_sfnt_off0000c5d9.bin
e13bb65991f1657c6f28790fa439f369f5bb99028b609a90cdf85c8abfcb4669
pdf-font-stream PDF embedded font (sfnt) at offset 0xC5D9 15672 bytes