Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdcc8dfd6d8fd2e5…

MALICIOUS

PDF

45.7 KB Created: 2020-08-08 00:32:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 736eeff1dbcf567162fe14332e1f87ac SHA-1: 189d8fb472a878653f5f4600396dcbb3773d3679 SHA-256: cdcc8dfd6d8fd2e5554a5aa127c133d29810c357e242c1bf868b1f0458830bce
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a loan application form, which is a common lure for phishing or scam operations. The document body and heuristics indicate the primary goal is to redirect the user to the malicious URL. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to improve search engine ranking for 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.
  • 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
  • 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.ru/pify?keyword=bnz+home+loan+application+form+pdf
    • http://files.themurphyhousecafe.com/uploads/1/3/0/7/130775518/riketesap-lapopogafis-goromilelawi-xuned.pdf
    • http://files.popular-plumber.com/uploads/1/3/0/7/130738841/13d1a6c585.pdf
    • http://vojone.jayharrislevy.com/uploads/1/3/1/3/131398140/polivaxalubon-rorebumilizuboj.pdf
    • http://gufisi.highpeaksedteam.org/uploads/1/3/1/6/131636655/pewewuduxegoxaf-kesanoj-ropuluram-gumazuze.pdf
    • https://cdn.shopify.com/s/files/1/0433/3328/8088/files/61825409466.pdf
    • https://cdn.shopify.com/s/files/1/0440/6122/9206/files/73959537479.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/computer_binary_code.pdf
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/36565814042.pdf
    • https://cdn.shopify.com/s/files/1/0433/8860/0478/files/tufisejodurigasegavo.pdf
    • https://cdn.shopify.com/s/files/1/0436/7086/4025/files/rolujavamo.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/23111824595.pdf
    • https://cdn.shopify.com/s/files/1/0430/6314/8706/files/89792520286.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/xemer.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/xebavofelitobexepakobi.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_off00006941.bin
0fbd2671530a6dc84c0a772ebaf74a24feb90e826506c6afc85f087864708b62
pdf-font-stream PDF embedded font (sfnt) at offset 0x6941 5104 bytes
font_01_sfnt_off00007a68.bin
ca6922ca5b27ecfc3e23a28cea25ef7432db70dcd1eaee7697c5f9ea8051eb01
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A68 9784 bytes
font_02_sfnt_off00009bb4.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB4 4324 bytes