Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0a263ee923ad0d8…

MALICIOUS

PDF

48.5 KB Created: 2020-08-03 13:37:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff121d2730500c199dad66b0f6848675 SHA-1: afce7ad99ce5905c6b9ea41c3745b67a33c8486f SHA-256: a0a263ee923ad0d898bdb2a310c6d4855cdc7cd906c67a56bdc9a7756da4668a
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=azure+data+factory+v2+tutorial+pdf'. This URL is embedded within the document body, suggesting a social engineering attempt to trick the user into clicking it. The presence of a PDF link farm heuristic further indicates a pattern of distributing malicious links via PDF documents. The document body itself contains obfuscated text and references to the tutorial, likely as a lure.

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=azure+data+factory+v2+tutorial+pdf
    • http://files.valiulis.com/uploads/1/3/1/3/131380000/pexewuvevebun.pdf
    • http://files.davewatkinsmusic.com/uploads/1/3/1/4/131438523/1046071.pdf
    • http://files.lec-psaa.com/uploads/1/3/0/8/130874050/direwetam.pdf
    • http://gojati.poverty-conference.org/uploads/1/3/1/4/131483371/2029557.pdf
    • http://bilariwi.buttecollegebcea.org/uploads/1/3/2/6/132683165/kajuguwi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/kanarerubamaboladejufurak.pdf
    • https://cdn.shopify.com/s/files/1/0428/3888/4519/files/67052888920.pdf
    • https://cdn.shopify.com/s/files/1/0435/7524/7003/files/63326161949.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdf
    • https://cdn.shopify.com/s/files/1/0430/6635/9962/files/74562997425.pdf
    • https://cdn.shopify.com/s/files/1/0430/3673/7699/files/xijanazopaxej.pdf
    • https://cdn.shopify.com/s/files/1/0431/0709/0581/files/wagowog.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9805/files/alice_24_7.pdf
    • https://cdn.shopify.com/s/files/1/0434/3575/3639/files/vowenufovawodibez.pdf
    • https://cdn.shopify.com/s/files/1/0448/5169/1680/files/cheapname_custom_domain_for_github.pdf
    • https://cdn.shopify.com/s/files/1/0435/5804/3807/files/13349085888.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/81567103174.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/16801136311.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_off00007219.bin
7cd3e3551c6d458ad37f6d61035d4ed770fd3171c50a4fb339345ac29bc30ba9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7219 5080 bytes
font_01_sfnt_off00008390.bin
b6d94a320bba3946e6ff2a56bd95d1101d67aa91e78245c4f6be22634db20146
pdf-font-stream PDF embedded font (sfnt) at offset 0x8390 10332 bytes
font_02_sfnt_off0000a69a.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0xA69A 4324 bytes