Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ae7ed16f1d9b435…

MALICIOUS

PDF

46.7 KB Created: 2020-08-18 22:50:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53a10da584a2e31d0ff6c9dbecba10b4 SHA-1: 9ad7150162255460d73f44b8ef81c9735c747a67 SHA-256: 5ae7ed16f1d9b435f2fcf90912fa1c5d0b85ba7c275617480f1029987dc7b9c0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which, https://ttraff.cc/pify?keyword=adm+pro+6.+4.+0+crack+apk, is identified as a malicious redirector. The document body also contains text related to 'Adm pro 6. 4. 0 crack apk', suggesting a lure for software cracking. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.cc/pify?keyword=adm+pro+6.+4.+0+crack+apk
    • http://files.thelittlepointbookshop.com/uploads/1/3/0/7/130740231/162bd.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0427/9818/6652/files/4905427441.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/50730315596.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/vodawozexula.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23063093424.pdf
    • https://cdn.shopify.com/s/files/1/0431/2452/3169/files/76369342882.pdf
    • https://cdn.shopify.com/s/files/1/0432/2587/4600/files/xiner.pdf
    • https://cdn.shopify.com/s/files/1/0428/8203/9964/files/kepasupejaji.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zeperilifo.pdf
    • https://cdn.shopify.com/s/files/1/0440/8590/3510/files/7288996226.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5678/files/vinosusewufijoxigel.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063b5.bin
a3ecde45be3900f88b80edafc619d044da649d41104ed2f20e744de731258387
pdf-font-stream PDF embedded font (sfnt) at offset 0x63B5 4912 bytes
font_01_sfnt_off00007463.bin
ef52dfe2bf6f6f262cd478b000b34a09fc369b81ccc86af51ea83c898d320dbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x7463 13796 bytes
font_02_sfnt_off0000a079.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xA079 4324 bytes