Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6184383e550f1d…

MALICIOUS

PDF

47.1 KB Created: 2020-08-14 18:42:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f911a39d81d5ae08c4da8e19bd6f330 SHA-1: a35f31cb76429aab8edd9393fd0197aa733edeab SHA-256: 1e6184383e550f1d53897addfd6b8dded13cab8a234a6e0fcdfe1e6f7d993bc9
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a fake CAPTCHA lure designed to trick users into interacting with a malicious link. The primary link, https://ttraff.ru/pify?keyword=aadhar+card+update+form+by+post+address, is identified as a malicious redirector. The document also includes a large number of links, many hosted on Shopify, which is characteristic of a link farm used for SEO poisoning or to obscure the final malicious destination.

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=aadhar+card+update+form+by+post+address
    • http://dokug.champagnesparkle.com/uploads/1/3/1/8/131871479/dusepobijoladem.pdf
    • http://files.daddybabygirl.net/uploads/1/3/1/4/131407281/fce0e19f22.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/gupiromamaxe.pdf
    • https://cdn.shopify.com/s/files/1/0430/4656/8098/files/4998718819.pdf
    • https://cdn.shopify.com/s/files/1/0430/4915/6757/files/39910562752.pdf
    • https://cdn.shopify.com/s/files/1/0437/1369/1799/files/auto_tune_pro_full_crack.pdf
    • https://cdn.shopify.com/s/files/1/0436/1574/8253/files/28456916616.pdf
    • https://cdn.shopify.com/s/files/1/0429/9223/8745/files/shape_of_my_heart_tab.pdf
    • https://cdn.shopify.com/s/files/1/0448/0958/4802/files/brahms_hungarian_dance_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/7868/8674/files/sotusuli.pdf
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/posawona.pdf
    • https://cdn.shopify.com/s/files/1/0428/1093/3414/files/jilarufesunulu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1688/7192/files/distributed_autonomous_robotic_systems.pdf
    • https://cdn.shopify.com/s/files/1/0431/0505/8976/files/tunuposewujovuwugosadowop.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_off0000659a.bin
a49030db5355901ac1022b1ed6b924555be03cd790dee9dd9604decd8e1d0cf1
pdf-font-stream PDF embedded font (sfnt) at offset 0x659A 5592 bytes
font_01_sfnt_off00007876.bin
d2528f64008eef44b010972e5bbf4381481f65dc8944a24d9bd3eb1dc05fc148
pdf-font-stream PDF embedded font (sfnt) at offset 0x7876 9800 bytes
font_02_sfnt_off00009a39.bin
1a79c374efb2151f0130be692814227cad50abd2ddff52ad160fc02ccdfac36c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A39 5876 bytes