Malicious PDF — malware analysis report

Static analysis result for SHA-256 a181253b7e2a0f2f…

MALICIOUS

PDF

48.0 KB Created: 2020-08-27 15:01:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52ab61bd06c1bf8634ee63336fcbaf88 SHA-1: 53f30a594eedbe9f987ba9b1e44c5d202490f1a8 SHA-256: a181253b7e2a0f2f8a2cd47f2b71ce999cff59b9bf206c1fefd7a11be196ac60
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic firings indicate a PDF link farm designed to lead users to potentially harmful content. The presence of numerous Shopify URLs, some flagged as benign and others unknown, suggests an attempt to blend malicious links with seemingly legitimate ones. The primary malicious URL identified is https://ttraff.me/pify?keyword=spongebob+scaredy+pants+credits.

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.me/pify?keyword=spongebob+scaredy+pants+credits
    • http://files.recaplaboratory.com/uploads/1/3/0/9/130969837/964e60.pdf
    • http://files.reedcusterband.com/uploads/1/3/2/8/132814022/zabaruribuba.pdf
    • http://files.uctmed1973.com/uploads/1/3/0/7/130776485/gizawonuwaxa_zaxufola.pdf
    • http://files.walthamchangemaker.org/uploads/1/3/1/6/131606965/jimel-sokagapofove-xaxamej.pdf
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/darisokezujowekaxapupe.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6778/files/facebook_login_app_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/buku_saku_biologi_sma.pdf
    • https://cdn.shopify.com/s/files/1/0430/0491/9971/files/adverbs_of_frequency_exercises_b1.pdf
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/bofadunevepowirapus.pdf
    • https://cdn.shopify.com/s/files/1/0429/0753/3475/files/history_of_anglicanism.pdf
    • https://cdn.shopify.com/s/files/1/0459/7710/8647/files/38095546860.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3370/files/35153992901.pdf
    • https://cdn.shopify.com/s/files/1/0432/1463/5165/files/ladupibojegapeleneditofe.pdf
    • https://cdn.shopify.com/s/files/1/0432/0365/7887/files/bowflex_watch_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2616/files/4459377291.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/waxelevaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5761/8850/files/soginezoxowuw.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_off00006769.bin
4c34c4f71b1c27649cd12a0a050780c9429d0dc45c1494a7d4d33b4fff35c9a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6769 5552 bytes
font_01_sfnt_off00007a55.bin
8ec818a3adff4ada3fd2716ca76267d58413b0a355e2caa25a64393859ccc1e2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A55 10388 bytes
font_02_sfnt_off00009e27.bin
62057359ad22ed6c79ab6a94c34af50e7f9192dd49eed379a27769cab1f8071c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E27 16064 bytes