PDF malware analysis — malicious · e7787c196f8ee035

MALICIOUS

PDF

259.0 KB Created: 2010-05-27 22:13:33 -04:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 32b55ab7204f2c8eac0b6789b83e3b2a SHA-1: 72d545ef8128ad7e71a930328f1c45348142f792 SHA-256: e7787c196f8ee035ffca9c14739fb2c5114624aaeabe3ad331579191a94ecb43

406 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The PDF file contains a critical PDF_LAUNCH action that executes cmd.exe with parameters designed to run an embedded PE payload. This is a known technique for delivering malware, often used in advance-fee scams as indicated by the SE_ADVANCE_FEE_SCAM_LURE heuristic. The embedded executable payload and the launch action strongly suggest the document's purpose is to download and execute a second-stage payload.

Heuristics 12

Adobe Reader Launch action command execution critical CVE exact CVE_2010_1240

PDF uses the Adobe Reader/Acrobat Launch action pattern associated with CVE-2010-1240: cmd.exe is invoked with attacker-controlled parameters, paired with an embedded/exported payload.
Launch action critical PDF_LAUNCH

PDF contains a /Launch action whose target is an executable, URL, or UNC path — can start an external application
Embedded Windows executable payload in PDF stream critical PDF_EMBEDDED_PE_PAYLOAD

PDF stream bytes contain an embedded Windows executable with a verified PE header. Exploit chains often hide droppers inside ordinary streams rather than standard /EmbeddedFile attachments.
/Launch action target: cmd.exe critical PDF_LAUNCH_COMMAND

PDF /Launch action specifies an executable target with parameters '/Q /C %HOMEDRIVE%&cd %HOMEPATH%&(if exist "Desktop\\handbook.pdf" (cd "Desktop"' — references a known-dangerous executable (cmd, PowerShell, etc.).
ClamAV: Pdf.Tool.Agent-1388586 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Tool.Agent-1388586
Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION

PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded file low PDF_EMBEDDED

PDF embeds a file attachment — could carry an executable or another weaponised document as a nested payload
External URI info PDF_URI

PDF contains an external URL action
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://www.suntrust.com/retirementsolutions
- http://www.discoverybenefits.com/
- http://www.cignabehavioral.com/
- http://www.cign.com/
- http://www.teldrug.com/
- http://www.mycigna.com/
- http://www.lifebenefits.com/
- http://www.netbenefits.fidelity.com/
- http://www.unum.com/
- http://www.eyemedvisioncare.com/
- http://www.kaiserpermanente.org/
- http://www.cigna.com/
- http://www.CIGNA.com/
- http://www.cigna.com/healthyrewards

Extracted artifacts 9

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0274_000.js` `ff55c3569615905a49995e011f58a5f14b9bcd78f90366bfed8a0a3717ddaa0c`	pdf-javascript-stream	PDF /JS object 274 at offset 0x4078B	57 bytes
`stream_043_off0003e52f.bin` `1c1634873ea9549570bb1f7663f87cafc871ff6854aa491bd150c94a58742453`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3E52F	29696 bytes
`font_00_sfnt_off0001acc6.bin` `1595e16a4f9a0296195e8dc1865868585c10d52861edb7be5bd8d7bb46db92b6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1ACC6	33568 bytes
`font_01_sfnt_off0001f5e7.bin` `34b0487b9d5db5448761716fd39edac50b029d9a55416c4f3c80a2767672c1b9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1F5E7	27004 bytes
`font_02_sfnt_off0002290d.bin` `daebbe6f5b3bb39df11cac5456a4dd34995b98a47d83eea0b3f52e995dd61225`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2290D	31960 bytes
`font_03_sfnt_off00026c0c.bin` `84c02ed1e82014a67a7bc68df43de9ea2cab3e3cffaf559b8eb8f98dc2c1ba23`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x26C0C	25516 bytes
`font_04_sfnt_off00029adf.bin` `4027f6d872dc004d25fac9306111c00201f60500e4898dfe0941d608ccc2a3e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x29ADF	16476 bytes
`font_05_sfnt_off0002ba18.bin` `5d3b487106b60ccd273e9fbbc201f0d7bba5eba88fc208da91f96864df8478f7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2BA18	46720 bytes
`font_06_sfnt_off00033197.bin` `3a6f2930bb6cbd05763fa470b4e32e0c20dcc3efa4d1c4d37d1e60fd340f4b67`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x33197	21924 bytes

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