Malicious PDF — malware analysis report

Static analysis result for SHA-256 593ae8585b099253…

MALICIOUS

PDF

47.3 KB Created: 2020-08-21 22:53:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8efd0ada101c98e10bba1f6a3ef6c24d SHA-1: c28eade49c83861b700fdf66e766b81905081d5e SHA-256: 593ae8585b0992534cc31844b4c0ad6d8b3936f0d68be1944653f8dc5827b7e0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=google+sheets+if+statement+between+two+numbers'. This URL is embedded within the document body, disguised as a tutorial for Google Sheets. The file also contains a PDF link farm heuristic, indicating a large number of outbound links, with the primary host being 'cdn.shopify.com'. No scripts were extracted, but the combination of the malicious redirector and the link farm suggests a phishing or scam attempt.

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.cc/pify?keyword=google+sheets+if+statement+between+two+numbers
    • http://pukigebaz.nileswesttheatre.com/uploads/1/3/0/8/130813780/lelatisitiliru-zofojebi-begowumunulijas.pdf
    • http://files.turningcomic.com/uploads/1/3/0/8/130814337/kagudok.pdf
    • http://files.segamatbikers.com/uploads/1/3/1/4/131438639/kapopopevosaka-kalel.pdf
    • http://vanisevog.emmawilliamsdirector.com/uploads/1/3/1/6/131606289/386071.pdf
    • http://linoza.womensclinicatlantaabortion.com/uploads/1/3/1/4/131408899/betewetu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/fafadapoxekunubutoxufopa.pdf
    • https://cdn.shopify.com/s/files/1/0437/3449/9489/files/juvoxebolafi.pdf
    • https://cdn.shopify.com/s/files/1/0439/4775/3640/files/veduvusivuxemabegivuw.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/ferexofuxujijisefiludoto.pdf
    • https://cdn.shopify.com/s/files/1/0431/8845/3533/files/bevozutiwopafom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0204/4316/files/20136302793.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/likedivetajezituravoxaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokesinoximirupabujikupoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/5651/9578/files/batorinikofijogopanevipes.pdf
    • https://cdn.shopify.com/s/files/1/0439/1819/6891/files/73127234899.pdf
    • https://cdn.shopify.com/s/files/1/0435/3271/4139/files/gobadefu.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_off00007863.bin
5652bab3fa288e913aa5d871a6fc806fd883fca24e2e155c7ce67751cd4fed90
pdf-font-stream PDF embedded font (sfnt) at offset 0x7863 5444 bytes
font_01_sfnt_off00008ae1.bin
f88db88ac003a9e5f5956d4393385d92e181279ef3ff9d3128c696ba2aced0ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE1 10912 bytes