PDF malware analysis — malicious · d96250c030cc02e6

MALICIOUS

PDF

42.9 KB Authoring application: pstoedit

MD5: cbfc18e9ac057d08dd5b8fb41bd7fda1 SHA-1: 78552753bdec94f1bdf8b7cb46a340a4f2f43ce2 SHA-256: d96250c030cc02e674ce7e2d1f8672e684a06eaa82a7dd21683a7fd698ba2020

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to other PDF files hosted on various domains. This technique, identified by the PDF_SEO_LINK_FARM heuristic, is often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted, and the document body contained mostly garbled text, making it difficult to ascertain a specific lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 3

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
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://talknique.com/uploads/1/3/0/2/130291030/3788538.pdf
- http://jimarcher.com/uploads/1/3/0/6/130621052/gujosanexij.pdf
- http://migeorgeson.com/uploads/1/3/0/4/130476943/c10d2e316.pdf
- http://mimiwong.net/uploads/1/3/0/6/130620606/2406110.pdf
- http://icedome4on4.com/uploads/1/3/0/6/130640095/2054323.pdf
- http://merrymanchiropractic.com/uploads/1/3/0/7/130740490/pokuj.pdf
- http://bjjfoku.com/uploads/1/3/0/7/130775911/pezigik_sudirupule_duvufuzimitulen_jamev.pdf
- http://bygraceweobey.com/uploads/1/3/0/5/130588426/tisetazaniw.pdf
- http://hostmaster.fairlightfolk.com/uploads/1/3/0/6/130620520/b0f011e914d54.pdf
- http://phdentists.com/uploads/1/3/0/4/130488470/5fb8c.pdf
- http://netmabrle.net/uploads/1/3/0/7/130740196/f9bc2b.pdf
- http://babyak.net/uploads/1/3/0/7/130739593/76715480c16e.pdf
- http://bjenyes.com/uploads/1/3/0/9/130969254/derimowaz-dinani-gitujig-kumebisa.pdf
- http://motomomfuel.com/uploads/1/3/0/7/130775710/1306948.pdf
- http://masterpeacepress.com/uploads/1/3/0/8/130814246/lumulonipilidefome.pdf
- http://msmale.com/uploads/1/3/0/7/130775109/3230633.pdf
- http://oahuanna.com/uploads/1/3/0/7/130740480/266d908db94ca.pdf
- http://portugalatlanticosul.org/uploads/1/3/0/7/130776641/b1b6fc8a57f1e.pdf
- http://crowhillindustries.com/uploads/1/3/0/6/130603905/tojagadawixoluf.pdf
- http://aerosportoutfitter.com/uploads/1/3/0/4/130476395/gibajuzupijux_wuzisetedevut_lamuna.pdf
- http://fkox.com/uploads/1/3/0/7/130738984/af28a.pdf
- http://mndball.com/uploads/1/3/0/6/130620370/64e277f3a.pdf
- http://hongliguojiyulechengyouhuitiaojian.f18.ebkf.org/uploads/1/3/0/6/130620478/4450374.pdf
- http://t84.dk/uploads/1/3/0/4/130483110/wogojixaman.pdf
- http://encore00028.voyagerwebsites.com/uploads/1/3/0/2/130270904/130270904.html#mapa+mudo+asia+politica
- http://crowhillindustries.com/uploads

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00002eef.bin` `9ed7cc55c7463e0fb2cb1de3a31e887cdc2f5ff13b11cc6dd30a8f877f1dd6a7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EEF	4516 bytes
`font_01_sfnt_off000041e5.bin` `2f2b8618cf941d247a6c9fb17bbcdae5b66c86a691f8e48c66cd18abcdbb3653`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x41E5	9664 bytes

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