Malicious PDF — malware analysis report

Static analysis result for SHA-256 8006f4f041ec92bd…

MALICIOUS

PDF

37.3 KB Created: 2020-08-02 10:49:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ead8981b1d94ff493db0adfc350f9e4e SHA-1: e395b7760a29d037f9823f9c6ccdf8cbb50eda87 SHA-256: 8006f4f041ec92bd6d63bbfc33ca0a1b7dd1cd01b2b3a90192e0991932a690ef
154 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious content, specifically disguised as a vehicle owner's manual. The primary malicious URL identified is https://ttraff.cc/pify?keyword=2010+vw+cc+owners+manual+pdf, which is flagged as a malicious redirector. The document body and embedded links further support the lure of a manual, increasing the likelihood of user interaction with the malicious link.

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=2010+vw+cc+owners+manual+pdf
    • http://files.ozarkmountainregionalpwa.org/uploads/1/3/2/7/132740482/e5382953f.pdf
    • http://files.nissajackman.org/uploads/1/3/1/6/131636748/xetupowebu-salidakow.pdf
    • http://files.harmonizeyourspace.com/uploads/1/3/2/3/132302913/6922088.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/tixexiwelobov.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/pokemon_go_0._29._2.pdf
    • https://cdn.shopify.com/s/files/1/0437/4613/2119/files/9007078672.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0724/files/89796125801.pdf
    • https://cdn.shopify.com/s/files/1/0433/1952/5534/files/47297786116.pdf
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/gojelidofugo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9619/5737/files/18976387927.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/niwewipijowunugimamotamap.pdf
    • https://cdn.shopify.com/s/files/1/0429/5373/6351/files/79409748749.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/asap_rocky_downloads.pdf
    • https://cdn.shopify.com/s/files/1/0433/3119/0952/files/4799450782.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/zugimamojawinedasom.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005266.bin
e9b3cd66d096372768fd2c2f5b5393365424eee725eda193705b02de76515bad
pdf-font-stream PDF embedded font (sfnt) at offset 0x5266 5684 bytes
font_01_sfnt_off000065c4.bin
91fd8fd53b3b03ba1b59ed61ac73ee8922f377dd7f046b5d54dfa644e6b1e3cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x65C4 10232 bytes