Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03e4e1c5c2901ce…

MALICIOUS

PDF

47.9 KB Created: 2020-08-20 05:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1231949cbfbc0415d8a589e5feecb785 SHA-1: 0e4c79c5c773fab5bce2b3f5958174882917b1c5 SHA-256: e03e4e1c5c2901ced4a5fdaf7bb65ef7db94fd971afec44150e23c731cb149f1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a mass external link farm, with a primary malicious redirector URL pointing to 'https://ttraff.ru/pify?keyword=hkjc+bet+android+app'. This suggests a phishing or scam campaign aiming to redirect users to potentially harmful content. The document body also contains the malicious URL and other PDF links, reinforcing the attack pattern. No scripts were extracted, limiting the analysis of further payload execution.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=hkjc+bet+android+app
    • http://files.ribbonsbyfir.com/uploads/1/3/1/3/131383247/vapebojokajol_wudesufodipe_lafopijogijiz_runumu.pdf
    • http://sokeni.precisionfitnessandnutrition.com/uploads/1/3/0/7/130739059/nifurakopuj_nisafujapiv_tejafevezixepa.pdf
    • http://files.justcoconotchanel.com/uploads/1/3/0/7/130740200/fefuvuji_lubemenipakizuk_jagapo.pdf
    • http://duruli.alchemistmovement.org/uploads/1/3/0/7/130775840/somafosev_didaja_babukuvuki_gonopoju.pdf
    • https://cdn.shopify.com/s/files/1/0434/6681/7696/files/78922251549.pdf
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/15170741261.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/pazumunowugonewizejikisa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38967404473.pdf
    • https://cdn.shopify.com/s/files/1/0436/8403/6761/files/20741019306.pdf
    • https://cdn.shopify.com/s/files/1/0430/0197/0837/files/juteb.pdf
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/hopeful_bam_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0432/5317/0339/files/rufigojonowabisu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/27990694395.pdf
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/fusionner_des_en_un_seul_document.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_off00006924.bin
7a090697bb4539a23501285be891a6c2e2f4dbea8d3b6c1c03f7477ff8eca15f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6924 5100 bytes
font_01_sfnt_off00007a7b.bin
7d78d2cff95862b23cd64a8c78d71a869b13f699cb610bfd9ad96e41b91856cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7B 10052 bytes
font_02_sfnt_off00009d0e.bin
9a4cbfef1d361b49d4faaeef6ced77ef0fd92f26152dd8eab1109b0e9abbc1b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D0E 16232 bytes