Malicious PDF — malware analysis report

Static analysis result for SHA-256 45fa1dc3c45131d6…

MALICIOUS

PDF

50.4 KB Created: 2020-08-01 07:43:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54b44c6e63eb65f411cb419ccea821ab SHA-1: 18752b0c989dc841337de19545410970c59b18fa SHA-256: 45fa1dc3c45131d6015420b59190803623c52157a89aec7ff503ccac2b98b9a0
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=kid+cudi+pursuit+of+happiness%2528+nightmare%2529'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0433/1329/9620/files/20425041707.pdf'. The document body itself contains these URLs, suggesting an attempt to trick the user into clicking them. The primary attack pattern involves redirecting the user to malicious infrastructure.

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=kid+cudi+pursuit+of+happiness%2528+nightmare%2529
    • http://files.napafermentation.com/uploads/1/3/2/7/132712115/3086089.pdf
    • http://files.ellabonitastores.com/uploads/1/3/1/8/131856519/kazikesabi-xelokamebegu.pdf
    • http://files.lieberconsulting.com/uploads/1/3/0/7/130776483/jedemose_lexopadurilaxo_kapob_rigixuxenes.pdf
    • http://files.abnavisaviation.com/uploads/1/3/1/4/131454102/5b43e94445e6d91.pdf
    • http://files.energygroupuniversity.com/uploads/1/3/1/4/131407057/234402.pdf
    • https://cdn.shopify.com/s/files/1/0433/1329/9620/files/20425041707.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefiwi.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/69514834200.pdf
    • https://cdn.shopify.com/s/files/1/0431/4585/5137/files/86779153893.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/bokewalonan.pdf
    • https://cdn.shopify.com/s/files/1/0438/0576/9888/files/gubezujawekomu.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8802/files/71954986230.pdf
    • https://cdn.shopify.com/s/files/1/0436/7056/9113/files/ragaxulabiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/wuruzob.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdf
    • https://cdn.shopify.com/s/files/1/0437/0821/9547/files/fedataretekib.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_off00006b03.bin
27db8e8fd16e593023e05ee2c6e176e173a2b4aba1dc37552243699164bbcc3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B03 5540 bytes
font_01_sfnt_off00007dbe.bin
16d68dd0075441fac14eade347974ae9686a77bce70153636b980bc40dc24f42
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBE 15668 bytes
font_02_sfnt_off0000ae1e.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE1E 4324 bytes