Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0ce5ff50c7ff9a1…

MALICIOUS

PDF

45.3 KB Authoring application: Karbon
MD5: 7a746c785a5bdd5df7aea40ac5f2d52f SHA-1: d074e0af8680dd87f5853107300ec3dc4eac720a SHA-256: a0ce5ff50c7ff9a1331054d5907ff80e7a3a320c44acccea5974b8d1b5472a8c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF files, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection of Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious classification. The primary attack pattern involves directing users to a network of linked PDF documents, likely for phishing or to distribute malware.

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 https://www.datafilehost.com/d/f0e7ffc2
    • https://www.datafilehost.com/d/95c65ecf
    • http://bobogogeva.znamenitost.online/uploads/2020/01/28/5e0715df0b.pdf
    • http://thepropertycoach.club/uploads/1/3/0/6/130620764/butarajo.pdf
    • https://memuzekodu.weebly.com/uploads/1/3/0/5/130590537/sobiba.pdf
    • http://rokizuwad.vipiski-besplatno11.icu/uploads/2020/01/28/nujugoduzukedisafuba.pdf
    • http://kathyfitzsimmonsart.com/uploads/1/3/0/2/130271054/wewakegenupusiz-rekibogofavaka-pudoku-betixepinakuk.pdf
    • http://medicinari-njemacka.com/uploads/1/3/0/6/130622120/7605447.pdf
    • http://tibusunog.gate2019iitm.online/uploads/2020/01/28/8291435.pdf
    • http://rebathofsouthlouisiana.com/uploads/1/3/0/3/130313746/kesimuzarin_xitanevazug_winafesanijoji.pdf
    • http://jamepite.dsg-logistika.ru/uploads/2020/01/27/lapot-mosawuvozisejis-koruxusubosi.pdf
    • http://restaurantatburdicks.com/uploads/1/3/0/4/130477135/mefixu_lidaloni_rosaluserese_jojuvorumapodum.pdf
    • http://violafineartrental.com/uploads/1/3/0/2/130272513/7fa27bd06.pdf
    • http://neilqiu.com/uploads/1/3/0/5/130590082/jatulovadisiveb_noxesorenoxiraz.pdf
    • https://xebasuratevukeg.weebly.com/uploads/1/3/0/4/130476203/wujaw.pdf
    • http://drommusic.com/uploads/1/3/0/3/130313247/7297538.pdf
    • https://pepudenonibasi.weebly.com/uploads/1/3/0/4/130476298/nizobob.pdf
    • https://rokatubarisi.weebly.com/uploads/1/3/0/2/130272940/miwosove-jowamuwuwonutex.pdf
    • http://blackmarksproduction.com/uploads/1/3/0/6/130603866/kegitawosamamej.pdf
    • http://tavur.systemcrm.ru/uploads/2020/01/29/gapivo-nezedezedan.pdf
    • http://sikadewog.flewka.ru/uploads/2020/01/27/tezotosesot.pdf
    • http://mezufuvum.activityedge.com/uploads/2020/01/27/1062230.pdf
    • https://vijexanego.weebly.com/uploads/1/3/0/5/130540214/184746d6c.pdf
    • http://kuf.hopifai.info/uploads/2020/01/27/subusodogoge.pdf
    • http://andreah.se/uploads/1/3/0/6/130604838/sesawemitedajevav.pdf
    • http://lore.7x4.ru/uploads/2020/01/28/dutabatevepubam.pdf
    • https://ruwolevan.weebly.com/uploads/1/3/0/4/130435939/1155342.pdf
    • http://mymissblue.com/uploads/1/3/0/4/130475984/130475984.html#amapiano+mix+2018+datafilehost

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001848.bin
6159f26c65b15252048d30a720525cb0987c057556136606229ca536eb4b5c57
pdf-font-stream PDF embedded font (sfnt) at offset 0x1848 8604 bytes
font_01_sfnt_off00005aa9.bin
afc341d065f2212550cbc9ed5592ad422bfb6486d9a3a317b7cd9dc368a9ce38
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA9 10612 bytes
font_02_sfnt_off0000719e.bin
51409e6f82dc61baede4556d12cd13eb3ec66d000ad4ee2a3acd0b9526e4c3a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x719E 4324 bytes