Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ffaac85f41a9ce…

MALICIOUS

PDF

47.5 KB Created: 2020-08-23 04:27:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d578f35e349402f3b1827feaf53f8a5 SHA-1: f06cf931077291b5e134ec1ea49437a8179a944e SHA-256: 95ffaac85f41a9cecbf00a7a6d0b929a32f341ff4cd76d3539e548d73f6c29be
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=bumble+android+notification', which is likely used to lure users into a phishing or scam operation. The document body, though heavily obfuscated, contains references to 'Bumble android notification', suggesting a social engineering lure.

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.ru/pify?keyword=bumble+android+notification
    • http://ligitusaj.etcogiclr.org/uploads/1/3/0/7/130775997/bepikox-divapesusivag-fakewonolavakot.pdf
    • http://guzat.annasofiestensgaard.com/uploads/1/3/0/7/130775364/5123387.pdf
    • http://files.thetruthaboutjohnarena.com/uploads/1/3/1/3/131398335/2144904.pdf
    • https://cdn.shopify.com/s/files/1/0433/6245/1611/files/zezakisafufukufufaza.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/vakejukozaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/pujonirizomuvivevit.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/casio_fx_991es_plus_calculator_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/7605/0330/files/78147613481.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/burhan_bungin_metodologi_penelitian_kualitatif.pdf
    • https://cdn.shopify.com/s/files/1/0434/5793/7561/files/ethical_hacking_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/raruvozabajifonale.pdf
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/32488484434.pdf
    • https://cdn.shopify.com/s/files/1/0431/3926/8774/files/physics_today_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5844/5979/files/4977089875.pdf
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/losotigufabepuxomep.pdf
    • https://cdn.shopify.com/s/files/1/0433/9659/5861/files/zifoso.pdf
    • https://cdn.shopify.com/s/files/1/0437/0215/7466/files/73785213690.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/51591548471.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_off00007c6d.bin
a06c85b5e27010645257943be38e558a5ae35d51309e53087a44f084c3772a7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6D 5180 bytes
font_01_sfnt_off00008dea.bin
2bb3f790b088d52e8fcbe9a8d3a751bf2d7dc200664896eab44dfa9204d72426
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DEA 10456 bytes