Malicious PDF — malware analysis report

Static analysis result for SHA-256 8588304204aef3dc…

MALICIOUS

PDF

42.6 KB Created: 2020-08-15 03:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3192465f40b609387ec2a7a0817fdd18 SHA-1: 05b85e3a8ae11a0f462d9c3e86a2f55e6f3092ad SHA-256: 8588304204aef3dc68e48e7ea0300c3f497d9f22be08b8acabb6e0a6d8047642
168 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1566.002 Spearphishing Attachment

The PDF contains a link to a malicious redirector, which is designed to lead the user to download cracked software. The document body explicitly mentions 'Cyberghost windows 10 crack' and includes a call-to-action phrase, reinforcing the lure. The presence of a password-protected archive lure suggests an attempt to bypass gateway security by encrypting the actual payload.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cyberghost++windows+10+crack
    • http://files.cottontailcottage.org/uploads/1/3/1/4/131408970/xutaxegowaki.pdf
    • http://files.dreamfurs.com/uploads/1/3/0/8/130874369/4117611.pdf
    • http://voduzoko.jimcohenjudaica.com/uploads/1/3/2/8/132814930/jusatobidolaborut.pdf
    • http://dajife.mayburydaycamp.com/uploads/1/3/1/4/131453150/wojiwewixogo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4188/1253/files/18663871537.pdf
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/wiwutupibewimugezinob.pdf
    • https://cdn.shopify.com/s/files/1/0427/7963/9967/files/nikalit.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/14519645194.pdf
    • https://cdn.shopify.com/s/files/1/0429/1464/4127/files/consecuencias_del_neoliberalismo_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0438/8388/8808/files/marc_benioff_book_behind_the_cloud.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nebedaxogatasimilore.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/nikajusedelur.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73875000904.pdf
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/chemical_engineering_design_towler.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gifowugebivagobawogun.pdf
    • https://cdn.shopify.com/s/files/1/0434/5593/8725/files/penumuvixirebilutip.pdf
    • https://cdn.shopify.com/s/files/1/0429/9096/0799/files/31304549774.pdf
    • https://cdn.shopify.com/s/files/1/0439/0843/2027/files/9212847005.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_off0000679f.bin
774b539034c87a9e70bf6d1e04d8baba448f63c0fd0ec731ec7d391da9065791
pdf-font-stream PDF embedded font (sfnt) at offset 0x679F 5668 bytes
font_01_sfnt_off00007afc.bin
c7e058fe4bad7bd228616ee095cc0993fe7aacbc2e932d5a2f324b93cb8443bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AFC 10004 bytes