Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc97d8d2fcb55f91…

MALICIOUS

PDF

49.8 KB Created: 2020-08-18 23:02:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8315466f818ddd73cc0223635c16e5e2 SHA-1: 3529d78266e82e542c516d5fc1737cd1539b39e2 SHA-256: cc97d8d2fcb55f91049a918dfdaba17693d24b9f461186f3b6b7d8acdc2dbeb0
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.cc/pify?keyword=bu+jhansi+examination+form+2019+last+date'. This suggests the document is designed to trick users into visiting malicious websites. The document body, though heavily obfuscated, contains text related to an examination form, reinforcing the lure. No scripts were extracted, limiting the analysis of further stages.

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=bu+jhansi+examination+form+2019+last+date
    • http://rimuxe.miamcglynnphotography.com/uploads/1/3/1/6/131637149/botivexoli_xexavaloruvurib_bimijesa.pdf
    • http://files.aggicrafts.com/uploads/1/3/1/4/131437941/tejejami-diwuniveb-monaxideniv-pudujixilonasab.pdf
    • http://pevuposot.robingrunder.org/uploads/1/3/2/8/132814930/xosuza-pirogo-kexibeb.pdf
    • http://files.grahamgop.com/uploads/1/3/0/9/130969699/zujafuromuzegagibixo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/pikefitenukexuxakufaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5855/1189/files/wow_classic_warrior_best_in_slot.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0111/files/10494017606.pdf
    • https://cdn.shopify.com/s/files/1/0437/4023/3879/files/general_ledger_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5135/1207/files/58374273306.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/beponuvonetokiza.pdf
    • https://cdn.shopify.com/s/files/1/0434/5747/8809/files/team_trivia_free_answer_of_the_day.pdf
    • https://cdn.shopify.com/s/files/1/0435/4375/6954/files/t_c_test_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/45778998664.pdf
    • https://cdn.shopify.com/s/files/1/0437/2457/0792/files/70667493376.pdf
    • https://cdn.shopify.com/s/files/1/0449/0684/0231/files/friendship_vocabulary.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_off00006af8.bin
96ff39fa429a2c15870a1446381824578ff6a6f7636b4db86edfba755da76cfe
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF8 2912 bytes
font_01_sfnt_off0000755d.bin
e8837289cbbbafa7c7491d25c7d6189dca65df45d8aff94d65659c139ebe0b4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x755D 5824 bytes
font_02_sfnt_off0000890a.bin
d6a1f066eb0aad68f4b82558b153705e2c50df2fa70a555238e41fd23e771a8f
pdf-font-stream PDF embedded font (sfnt) at offset 0x890A 15052 bytes