Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbfb05da6454e098…

MALICIOUS

PDF

48.1 KB Created: 2020-08-14 00:14:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6401b837cb1cc8f57607a307f010fe94 SHA-1: 3718638e85672cbe80929afae3e42a78930c78b0 SHA-256: fbfb05da6454e09876e43812a3a68a8471171d506ded3771e21ea73fac78ca00
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, specifically pointing to 'https://ttraff.cc/pify?keyword=beauty+spa+game'. The document body, though heavily obfuscated, contains this URL and also references a "Beauty spa game" which likely serves as a lure. The file also contains a PDF link farm heuristic, indicating it's designed to host numerous external links, with the primary one being a Shopify-hosted PDF. The combination suggests a phishing or scam attempt.

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=beauty+spa+game
    • http://selarari.haggartbelting.com/uploads/1/3/1/3/131398560/2427882.pdf
    • http://guvuloj.gregorysanders.com/uploads/1/3/1/3/131380600/rimut-xenaguvujila-xezobeg-buboto.pdf
    • http://files.thefeltfactory.co.nz/uploads/1/3/0/7/130776841/xizixexa-dajawotubep-fekifomidele.pdf
    • http://files.njguardiancanecorso.com/uploads/1/3/1/4/131406688/6427907.pdf
    • http://files.projectcuremanga.com/uploads/1/3/1/8/131857650/kaxiziw.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5290/files/37157153452.pdf
    • https://cdn.shopify.com/s/files/1/0429/4914/8828/files/6763958459.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1057/files/83558769836.pdf
    • https://cdn.shopify.com/s/files/1/0449/0631/5943/files/20229315009.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/81451500080.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/flowers_for_algernon_questions.pdf
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/jidoniwu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/jornadas_de_cura_anodea_judith.pdf
    • https://cdn.shopify.com/s/files/1/0431/0266/6906/files/datejuruwesuwesib.pdf
    • https://cdn.shopify.com/s/files/1/0434/4827/1000/files/99875794925.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/77588295401.pdf
    • https://cdn.shopify.com/s/files/1/0438/9984/6824/files/rupone.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_off000069ed.bin
1c2ca457143aba7949acbc56f7017a68a6130690799aeaae05f56daa4dea8563
pdf-font-stream PDF embedded font (sfnt) at offset 0x69ED 5164 bytes
font_01_sfnt_off00007b7e.bin
d8eac65646f7ff610fb14162a111fd1019000954467036bbaf10398eea0ca26d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7E 10344 bytes
font_02_sfnt_off00009f0e.bin
c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F0E 16060 bytes