Malicious PDF — malware analysis report

Static analysis result for SHA-256 62bea29650033a69…

MALICIOUS

PDF

50.4 KB Created: 2020-08-04 17:37:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d36071a70a4def2e746f103582ce447 SHA-1: e3d94a36fc572797f47bb08870a4aa913b6ffaf3 SHA-256: 62bea29650033a69c15dd62a9ece29aaf2b3e56f39bcc6557bd38011dee9ecab
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to what appears to be a link farm designed to host PDF files. One prominent link, 'https://ttraff.cc/pify?keyword=tafsir+surah+abasa+pdf', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a phishing or redirection attack.

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=tafsir+surah+abasa+pdf
    • http://files.scoilmhuireleixlip.net/uploads/1/3/2/6/132682792/pojidujotodexemub.pdf
    • http://files.fireweedcoffeeco.com/uploads/1/3/2/7/132712302/bimijiguvus.pdf
    • http://files.brickhouzecollections.com/uploads/1/3/1/3/131383456/187f3ffa64d3cd5.pdf
    • http://files.emmasedit.co.uk/uploads/1/3/0/8/130813876/3524889.pdf
    • http://files.customfitnessllc.com/uploads/1/3/0/8/130813427/gomipu-zejibipuposo-farow-gaboji.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/9348/1885/files/gutal.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/fubuzojewomuzorera.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5221/files/28262776431.pdf
    • https://cdn.shopify.com/s/files/1/0435/3386/1018/files/caccini_ave_maria_guitar.pdf
    • https://cdn.shopify.com/s/files/1/0446/0858/5891/files/chemistry_tro.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/12993023281.pdf
    • https://cdn.shopify.com/s/files/1/0429/7388/8671/files/jelig.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1268/files/repojano.pdf
    • https://cdn.shopify.com/s/files/1/0437/5104/7329/files/89698896438.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6232/files/nimoga.pdf
    • https://cdn.shopify.com/s/files/1/0433/9954/4984/files/toserewog.pdf
    • https://cdn.shopify.com/s/files/1/0434/4250/3832/files/vovefolap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/77217102784.pdf
    • https://cdn.shopify.com/s/files/1/0437/9059/8305/files/gifot.pdf
    • https://cdn.shopify.com/s/files/1/0431/6879/2733/files/banekiwanizonujotew.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067b6.bin
24547392bec1a21e372faa09317d3bd9b1917514447a0017035275903a19bba7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67B6 5188 bytes
font_01_sfnt_off0000794d.bin
06a4e807a1040cb18232050f71518a31c48f02b7f92c37807b39d9d125315234		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794D 12792 bytes
font_02_sfnt_off0000a14f.bin
c281d6eda1cde6ddea3b6cf281d7829e56e34805d7e99f70de5a8be90e7782b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA14F 17764 bytes

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