Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1ce8804075c4829…

MALICIOUS

PDF

62.7 KB Authoring application: Smallpdf Desktop
MD5: 01d66abb2896f7b5b25bcc977410a1d9 SHA-1: b5bc912dddca500091c5e74dcb5cecf22a40c152 SHA-256: c1ce8804075c48290b227d9723010ca197a6be566c8d57e1738a287b10e5d0d6
128 Risk Score

Malware Insights

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

The PDF contains a large number of external links, indicating a link farm strategy. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' strongly suggests a phishing or traffic redirection purpose. The presence of a 'download button' heuristic further supports the lure of clicking links to malicious content.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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 http://newgriffiths.com/uploads/1/3/0/6/130621352/4049211.pdf
    • http://intuitivecounselorkathyfoster.com/uploads/1/3/0/2/130270938/6184862.pdf
    • http://www.haumauora.com/uploads/1/3/0/7/130775011/e6fdf2a7d596.pdf
    • http://vintagehealthcaresolutions.com/uploads/1/3/0/5/130546076/gajigamupijojun-mujezusiwo-rorojapasenubir-pejiguvu.pdf
    • http://enjoni-cafe.com/uploads/1/3/0/8/130813705/rabexejilofi-wogoboxarer-wowivola.pdf
    • http://icbrconference.com/uploads/1/3/0/4/130479044/tufuniga.pdf
    • http://cupvilanova.org/uploads/1/3/0/6/130604884/widuvelipamid.pdf
    • http://buspasstours.com/uploads/1/3/0/6/130604878/643fc16428.pdf
    • http://jamesbrown4judge.com/uploads/1/3/0/2/130287946/lomab.pdf
    • http://equinoxtalks.com/uploads/1/3/0/4/130490378/subem.pdf
    • http://marchettispaghetti.com/uploads/1/3/0/5/130538945/4933344.pdf
    • http://ironvineforge.com/uploads/1/3/0/4/130478067/1483064.pdf
    • http://mail.enviromech.co.uk/uploads/1/3/0/7/130775489/mudasewutolopeno.pdf
    • http://danavelez.com/uploads/1/3/0/4/130476853/tidefivuduzanusu.pdf
    • http://themindfulchristian.net/uploads/1/3/0/4/130488157/7512704.pdf
    • http://ehoponline.com/uploads/1/3/0/5/130539097/4827352.pdf
    • http://cd1kjn.bdgct.com/uploads/1/3/0/5/130588344/130588344.html#nios+deled+maths+lesson+plan+in+english+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000621c.bin
1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x621C 1388 bytes
font_01_sfnt_off00006c2a.bin
24da06f2f36160dbc0715058a2d02146bbb68c147d09e41f1c1895acc198d1f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2A 16740 bytes
font_02_sfnt_off000099dd.bin
b13a424ffd1e67a88fe472698b6becf504c79e3be1b4d67a472966843fb3fd8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99DD 8140 bytes

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