Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3157896275d7eee…

MALICIOUS

PDF

38.2 KB Created: 2020-08-14 18:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fcbd4aa722d8741d7a2aba742b03f93 SHA-1: 60a46b7bff9708329d7514c01761a169535172e2 SHA-256: f3157896275d7eeecee6d23d2f4220645c3df6bd3ad46f717951540d069a3206
140 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=bosch+kl+1208+battery+charger+manual'. Additionally, it exhibits characteristics of a callback phishing lure, suggesting the document intends to trick users into contacting a malicious entity. The presence of a large number of embedded links, many pointing to Shopify domains, indicates a link farm strategy to obscure the malicious redirector.

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=bosch+kl+1208+battery+charger+manual
    • http://files.arthurkeeganbole.com/uploads/1/3/0/7/130739945/1182362.pdf
    • http://womigig.pickledheronstudio.com/uploads/1/3/0/8/130814168/2924307.pdf
    • https://cdn.shopify.com/s/files/1/0437/0900/5978/files/english_to_bangla_word_meaning_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/fogotatofexafav.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/gazesas.pdf
    • https://cdn.shopify.com/s/files/1/0439/3422/0456/files/93735288527.pdf
    • https://cdn.shopify.com/s/files/1/0430/1615/9381/files/judixowibezin.pdf
    • https://cdn.shopify.com/s/files/1/0435/4395/3567/files/bopepazukokuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/5407/9910/files/98697552157.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaxigosileworu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdf
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/91724369477.pdf
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/ladaxu.pdf
    • https://cdn.shopify.com/s/files/1/0438/2402/1664/files/zewurov.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/be_smart_english_workshop.pdf
    • https://cdn.shopify.com/s/files/1/0433/9898/7941/files/flash_s03e01_torrent.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_off000047a5.bin
5feb71b1e9c6773a17669328cf0c78e8106e15ca28b89440ad153f1de91331aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x47A5 5920 bytes
font_01_sfnt_off00005ba7.bin
0447e8427a331235debf545f7ba1cc64b846f417092771304e74cfd3967570bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA7 9920 bytes
font_02_sfnt_off00007da9.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA9 4324 bytes